Author: Nadia Okafor

  • Bottom watering explained

    How bottom watering works

    To understand bottom watering, we must look at how water behaves in a porous medium like peat, coco coir, or bark. When you pour water from the top, gravity pulls it rapidly downward through the paths of least resistance. Often, this means the water rushes down the inside of the pot walls and drains out the bottom, leaving dry pockets of soil in the middle of the root ball. When soil sits dry for weeks, it often shrinks away from the sides of the container, forming a crusted soil surface that resists normal overhead watering. Bottom watering relies instead on capillary action, the natural physical process where water molecules are drawn upward through tiny spaces between soil particles. The dry substrate acts like a dense sponge, pulling moisture from a reservoir below and distributing it evenly throughout the entire root system.

    Why plants prefer this method

    This technique offers several distinct advantages for both the root system and the overall health of the plant. By allowing the substrate to draw up only what it can hold, you reduce the risk of developing the classic overwatering signs that plague indoor gardeners. The roots are encouraged to grow downward toward the moisture, establishing a stronger, deeper foundation. A seasoned horticulturist once explained to me, “water flows where it is easiest, not necessarily where the roots need it,” which perfectly describes the flaw of top watering dry, compacted soil. When you water from below, the moisture distribution is uniform, ensuring that every fine root hair has access to the hydration it needs to transport nutrients to the foliage.

    Furthermore, keeping the upper layer of soil dry can prevent a variety of common problems. Many indoor pests thrive in damp, decomposing organic matter on the very top of the pot. While a dry top layer helps deter some insects, it will not replace a targeted mealybug treatment if those pests have already established themselves in the leaf joints or stems. Nonetheless, maintaining a drier top half-inch of soil creates a less hospitable environment for airborne invaders while keeping the roots perfectly hydrated below.

    The practical steps to take

    To begin, you will need a shallow, wide container — such as a deep saucer, a plastic bin, or even a clean sink — filled with about one to two inches of room-temperature water. Avoid using icy water directly from the tap, as this can shock sensitive tropical roots. Place your potted plant directly into the water, ensuring the drainage holes are completely submerged. The soil will begin to pull moisture upward immediately. You might wait fifteen minutes, twenty minutes, or sometimes thirty… until you feel the top of the soil is slightly damp to the touch, indicating that the water has traveled all the way through the root column.

    Once the soil is sufficiently damp, remove the pot from the water immediately. Letting a plant sit in standing water for hours will starve the roots of oxygen. Place the pot on a draining rack or in an empty sink for ten to fifteen minutes to allow all excess water to escape. Only when the dripping has completely stopped should you return the pot to its decorative saucer or outer planter.

    Flushing salts and seasonal care

    While bottom watering is highly effective, it cannot be used exclusively forever. Tap water contains dissolved minerals, and fertilizers leave behind salts. When you water from the bottom, these minerals are pushed upward and eventually accumulate at the top of the soil. To prevent this buildup from burning your plant’s stems, you must flush the soil from the top once every four to six waterings. Pour a generous amount of water through the top of the pot until it runs freely out the bottom, washing those accumulated salts away.

    You also need to adjust your watering schedule as the seasons shift. Plants consume water at different rates depending on daylight hours and indoor temperatures, meaning that dormant season watering requires much longer intervals between sessions than active summer watering. Always lift the pot to gauge its weight before deciding to water, as a light pot is the most reliable indicator that the substrate is dry enough to receive its next deep soak.

  • How much light a fiddle leaf fig wants

    Finding the sweet spot

    Fiddle leaf figs are native to lowland rainforests in West Africa, where they grow beneath a high, bright canopy. In our homes, they perform best when placed close to an east-facing window that receives clear morning sun. If you put your tree in a dim corner, it will slowly exhaust its stored energy. Unlike a plant experiencing alocasia dormancy, a fiddle leaf fig does not have a bulbous root to store carbohydrates for a long rest period. Instead, it relies on a steady, daily supply of bright photons to maintain its heavy, leather-like foliage.

    [sdm_callout type=”tip”]Last checked by the editors in 2025.[/sdm_callout]

    If your window faces south or west, the afternoon sun can be intense. You can soften this exposure with a sheer white curtain. To ensure even growth, rotate the pot a quarter-turn every week. Without this regular movement, the trunk will bend toward the glass — a common issue with uneven lighting — and the shaded side will eventually shed its leaves to conserve resources.

    Sunlight intensity and neem oil spray

    When applying the treatment to clean off dust or manage leaf blemishes, you must keep the plant out of direct sun for twenty-four hours. The oil acts like a magnifying glass, concentrating the sun rays and burning the foliage. A local plant collector noted, “direct sun on wet leaves will leave permanent brown scars” within just a few hours. These burns are irreversible and will affect how the plant photosynthesises.

    During the warmer months, the tree drinks much faster as the intense light accelerates transpiration. While some growers prefer watering from below to keep the soil surface dry, you must ensure the moisture reaches the upper roots. The plant needs thorough saturation followed by a drying period. If the foliage is receiving adequate energy, the soil should dry out within seven to ten days.

    What happens in dark corners

    When light levels are too low, the new leaves will grow smaller and be spaced further apart along the stem. This stretching is a desperate attempt to find a stronger source of energy. While pruning leggy plants can help restore a compact shape, it is only a temporary fix if the underlying light issue is not addressed. The new growth that emerges after trimming will simply be just as sparse if the tree remains in a dark hallway or a windowless office.

    Paying attention to the leaf color can help you read the situation. A healthy tree has deep, forest-green leaves with prominent pale veins. If the new leaves emerge pale green or almost yellow… they are telling you that they lack the energy to produce chlorophyll. Moving the pot just two feet closer to a clear window pane can completely change the health of your specimen.

  • Why calathea leaves curl

    The mechanics of curling

    Calatheas are some of the most expressive plants in the indoor garden. Their leaves naturally move throughout the day in a process called nyctinasty, folding upward at night and lowering during the day. However, when the leaves roll inward tightly along the central vein, it is a clear distress signal. This structural change is a physical defense mechanism designed to reduce the surface area exposed to the air. By rolling up, the plant minimizes water loss through its stomata, which are microscopic pores located primarily on the undersides of the leaves.

    Recognizing this behavior is the first step toward correcting the environmental imbalance. A local greenhouse manager once told me, “the leaf curls to save its own skin,” which is a perfect way to visualize this response. If you notice the margins of the foliage beginning to curl inward, the plant is actively struggling to retain its internal moisture. The change can happen surprisingly fast, sometimes over the course of just a few hours if the ambient conditions shift.

    Moisture balance in the pot

    Achieving the right balance of moisture in the growing medium is one of the more challenging aspects of keeping these plants healthy. Unlike tougher specimens where letting the topsoil dry is a helpful practice for pest prevention, these sensitive tropicals require consistent, even dampness. When the root zone becomes too dry, the plant lacks the hydraulic pressure needed to keep the broad leaves flat and turgid. This lack of pressure causes the cells to lose volume, resulting in the characteristic inward roll.

    To fix this, you must look at how you water. Gently probe the soil with your finger; if the top inch feels dusty or dry, it is past time to irrigate. Pour water over the soil until it runs out of the bottom drainage holes, ensuring the entire root ball is thoroughly saturated. If the soil has dried out to the point where it has shrunk away from the sides of the pot, you may need to hydrate it slowly. Over the next few days, you should see the leaves gradually unfurl as the roots absorb the water and restore turgor pressure to the foliage… though sometimes a particularly damaged leaf may remain partially curled.

    Air quality and light levels

    The air surrounding your plant plays a massive role in its daily moisture balance. In their native rainforest habitats, these plants live in a constantly damp understory. Our heated or air-conditioned homes are far drier than these wild environments, which accelerates transpiration — the process of water evaporating from the leaves. While a desert species like a grafted moon cactus can thrive in dry indoor air, a calathea will quickly show its displeasure.

    Light exposure is another critical piece of the puzzle. Direct sun will scorch the delicate tissue of these forest-dwellers, destroying their vibrant patterns and causing the leaves to fold up in self-defense. This is a very different light requirement than what you would provide when growing basil indoors on a sunny southern windowsill. If your plant is sitting in a spot where sunbeams hit the leaves directly, move it back a few feet or place a sheer curtain between the plant and the glass to soften the light.

    Nutrient levels and soil health

    The type of water you use can also induce stress and subsequent curling. Tap water often contains chlorine, fluoride, and various dissolved minerals that these plants are highly sensitive to. Over time, these chemicals accumulate in the soil and leaf tips, leading to crispy brown edges and curling. Switching to rainwater, distilled water, or filtered tap water can make a noticeable difference within a few weeks.

    Nutrient issues are less common causes of curling but still worth considering. While a nitrogen deficiency typically manifests as a gradual yellowing of the entire leaf surface, extreme nutrient imbalances or a buildup of salts from heavy chemical fertilizers can damage the sensitive root system. When the roots are damaged by salt buildup, they lose their capacity to take up water, which paradoxically leads to underwatering symptoms like curling even if the soil is damp. Flushing the soil with pure distilled water can help wash away these harmful accumulations and allow the roots to recover.

  • Getting an orchid to rebloom

    Triggering the drop in temperature

    Phalaenopsis orchids are remarkably resilient, yet they often sit on a windowsill for years, green and healthy, without ever producing a new flower spike. The secret to breaking this dormancy is a simple environmental cue that mimics the autumn transition in their native habitats. To initiate a bloom, the plant requires a distinct fluctuation between day and night temperatures for about four to six weeks.

    You can easily achieve this by moving your orchid to a cooler room or closer to a windowpane where the night temperature drops to around 55 to 60 degrees Fahrenheit. The daytime temperature should remain in the mid-70s. This ten-degree differential signals the plant to stop producing leaves and start focusing its energy on a flower spike. “I thought my plant was sterile until I left it in the guest bedroom during October,” a local orchid enthusiast recently told me. It took just twenty days of chilly nights for the first tiny green nub to emerge.

    Light levels and foliage clues

    While temperature is the primary trigger, a lack of sufficient light is the most common reason an orchid fails to sustain its new growth. An orchid needs bright, filtered sunlight to photosynthesise enough energy for blooming. If you look at the leaves, they should be a light, grassy green with yellow undertones. If the leaves are a deep, forest green, the plant is struggling to gather enough energy to push out a bud.

    Positioning is key here. Place your orchid where it receives several hours of filtered morning sun, perhaps in an east-facing window. This setup is quite different from a climbing monstera that might thrive in the softer, indirect glow of a deeper room. If the leaves develop a reddish or purple tint, the plant is getting slightly too much light, so you should back it away a few inches… just enough to protect the foliage while keeping the energy levels high.

    Maintenance and pest checks

    Watering during this pre-bloom phase should be precise. Allow the bark medium to dry out almost completely between waterings, which you can verify by checking the weight of the pot or inserting a wooden chopstick. This dry cycle, followed by a thorough flush, encourages healthy root activity. While handling the plant, examine the crevices between the leaves for signs of pests. Catching issues early prevents disaster, especially before you begin any mealybug treatment on the delicate crown.

    Avoid disturbing the root system during this critical trigger phase. Sticking to a rigid repotting schedule can actually stall the flowering process, as orchids bloom best when their roots are relatively snug in their containers. Only disturb the potting medium every two to three years when the bark begins to break down into compost — otherwise, leave those thick silvery roots to do their work in peace.

  • Fertilizing houseplants through the year

    The spring awakening

    As the March sun lingers longer on the windowsill, indoor plants begin to push out pale new tips and unfurl compressed leaves. This initial burst of energy quickly depletes the scarce nutrients stored in the potting medium over the darker months. To support this sudden surge, a balanced liquid organic fertilizer diluted to half of the manufacturer’s recommended strength is ideal. When you are securing a new, climbing vine to a monstera moss pole, you are also encouraging vertical growth that demands a steady, reliable supply of nitrogen.

    Starting early prevents the plant from exhausting its reserves before summer even arrives. A gentle feeding every three weeks during April and May — the start of the true active growing season — establishes a solid foundation for the year. Experienced growers often repeat the old green thumb maxim, “weekly weakly,” to describe this cautious, dilute approach to feeding. Applying a highly concentrated dose of chemical plant food all at once can easily burn the tender, newly formed root hairs.

    Summer peak growth

    By mid-July, indoor plants are photosynthesizing at their maximum rate, utilizing water and soil nutrients much more rapidly than at any other time of year. For active growers like parlor palms, cast iron plants, and other pet-safe houseplants, a regular feeding schedule maintains their deep green color and overall structural integrity over the summer. Healthy foliage helps these plants transpire efficiently, though we should never expect our indoor greenery to solve broader issues like indoor air pollution on their own.

    During these warm summer weeks, you can occasionally transition to a fertilizer with a slightly higher phosphorus ratio if you are hoping to encourage blooms on your flowering species like African violets. Always ensure the potting medium is damp before applying any liquid nutrients; pouring concentrated fertilizer onto bone-dry soil can cause immediate, irreversible root damage.

    Autumn and winter rest

    As October approaches and the days grow noticeably shorter, the natural light fades and plant metabolisms slow down significantly. Continuing to feed at summer levels during this transitional autumn phase will only lead to a dangerous buildup of unused mineral salts in the potting mix. Instead, we must begin tapering off the frequency of our applications … eventually stopping the routine altogether by late November.

    Proper winter houseplant care requires us to respect this natural period of dormancy. The plants are not dying; they are simply resting and conserving their resources until the cycle begins anew next spring when the light returns.

  • Alocasia dormancy is normal

    If your Alocasia drops its leaves in November, do not throw it away. This seasonal sleep is natural as daylight hours shorten. Stop watering almost entirely, keep the pot at room temperature, and wait. The underground tuber remains alive and will push up fresh green stems once the spring warmth returns.

  • Getting rid of spider mites

    Spotting the first signs

    You might first notice a dullness on the leaves of your favorite ivy or prayer plant, a subtle loss of vibrant green that looks like dust. If you look closer — especially under the joints where the leaf meets the stem — you will see the signature fine webbing. These tiny arachnids thrive in warm, dry air, reproducing with astonishing speed… a single female can lay hundreds of eggs in her brief two-week lifespan. By the time you notice actual webs, the colony is already well established.

    Stressed plants are always the first targets for these opportunistic pests. When conducting your weekly inspections, pay extra attention to weak or root-bound plants that are struggling to draw up enough moisture. A dehydrated plant cannot defend itself effectively, and its dry, papery leaves provide the perfect feeding ground.

    Washing the foliage

    The most immediate way to disrupt a severe infestation is physical removal. Take the affected plant to a sink or tub and use a steady stream of room-temperature water to blast the undersides of the leaves. You need enough pressure to dislodge the pests and their webbing, but not so much that you tear the delicate foliage.

    Be careful not to wash all your soil down the drain during this rinsing process. If you grow your tropicals in a loose, chunky aroid mix, the water will run through very quickly, which is great for drainage but can wash away loose bark pieces if you tilt the pot too far. Wrap a plastic bag around the base of the plant and tie it tight at the stem to keep the soil secure while you rinse.

    Applying targeted treatments

    Water alone will not solve the problem because hidden eggs will hatch a few days later. To eradicate the generation that survives the wash, apply an insecticidal soap or a diluted neem oil spray. Thoroughly coat every surface of the plant, focusing on the undersides of the leaves where the mites congregate. One grower notes that “consistency is the actual cure” when dealing with these persistent pests, meaning you must repeat this application every four to five days for at least three weeks to break the breeding cycle.

    Different species tolerate these sprays in different ways. While standard snake plant care is incredibly straightforward and these tough succulents can handle almost any treatment, thinner-leaved ferns might show leaf burn if left in direct sun after being sprayed. Always test a single leaf first and keep treated plants in a shaded corner until the leaves have completely dried.

    Keeping them away

    Preventing another outbreak is much easier than fighting an active one. Mites hate humidity, so grouping your plants together can create a slightly more humid microclimate that discourages them from settling down. Keep a close eye on your windowsill plants; things like growing basil indoors can attract mites quickly if the soil dries out completely in the afternoon sun. Regular wiping of the leaves with a damp cloth once a week physically removes scouts before they can colonize the plant.

  • Houseplant care in winter

    Adjusting to shorter days

    As autumn turns to winter, the intensity and duration of natural light decrease sharply. This change — which happens almost overnight in some northern regions — forces indoor plants to adapt to a much leaner energy diet. A specimen that grew vigorously on a desk four feet from a window during the summer months may begin to stretch or drop its lower leaves by late November. To compensate for this seasonal shift, you should move your pots closer to the glass, keeping them within a foot or two of south-facing or west-facing windows where they can capture every available hour of sunshine.

    Accumulated household dust on foliage presents another obstacle, acting as a physical barrier to photosynthesis. Giving your plants a lukewarm shower for the leaves once a month rinses away this grime and restores their ability to absorb light efficiently. Many growers find this simple rinse is more effective than wiping down individual leaves by hand. As one experienced gardener noted, “clean leaves are your plant’s solar panels” during the darkest weeks of the year.

    Modifying your watering routine

    Because houseplants grow much slower in winter, they consume far less water. The soil remains damp for a longer duration, which can lead to suffocated roots if you maintain your summer schedule. Instead of pouring water onto the topsoil every week, rely on bottom watering to keep the lower root zone hydrated while leaving the surface relatively dry.

    A constantly wet surface invites pests to move in and breed. If the top inch of soil remains damp for days on end, you will likely notice tiny, dark fungus gnats hovering around the rims of your pots. Testing the soil depth with a plain wooden chopstick is an easy way to check moisture… simply insert the stick deep into the pot, pull it out, and only water if no damp soil clings to the wood.

    Managing cold drafts and heat

    Indoor heating systems keep our homes comfortable, but they create a challenging microclimate for tropical flora. Radiators and forced-air vents blow dry, hot air that can scorch delicate leaves, while window glass can drop to near-freezing temperatures overnight. Position your pots at least three feet away from active heat sources and make sure no foliage directly touches cold glass. If you live in an old house, placing a simple cardboard barrier between your pots and drafty window frames can insulate the root systems from sudden temperature drops.

    Some tropical species respond to these environmental shifts by stopping all active growth or shedding their foliage entirely. If your exotic specimen begins to wither despite careful attention, do not panic. Recognizing alocasia dormancy will prevent you from throwing away a viable tuber that is merely resting until the warmer days of spring return.

  • The low-effort snake plant

    Finding the right spot

    Snake plants are often sold as the ultimate choice for busy people, and that reputation is well deserved. They easily handle dark hallways, dim bedrooms, and offices with tiny windows without dropped leaves or dramatic wilting. “They are nearly indestructible,” says my neighbor who kept one in a windowless hallway for six months. While they certainly grow faster when placed near a clear window, they do not require the precise positioning that other indoor greenery might demand. If you have a dark corner that needs some green life but lacks strong sun, this is the exact specimen to place there.

    Even under artificial fluorescent office lighting, these plants can persist for years without showing signs of stress. Unlike delicate ferns that crisp up at the first hint of dry air, their thick, waxy outer layer seals in moisture. This makes them ideal for modern apartments with forced-air heating, where humidity levels often drop significantly during the colder months. You can place them on a high shelf, a deep mantle, or even directly on the floor without worrying about daily light cycles.

    Neglect is the best policy

    The quickest way to harm this species is by giving it too much attention or watering it on a strict weekly schedule. These dry-climate survivors store water efficiently in their thick, upright leaves. You should only water them when the pot feels exceptionally light and the earth inside is completely dry to the touch… sometimes this means waiting three or four weeks between drinks. During the darker months of the year, they can easily go six to eight weeks without a single drop.

    If you are unsure whether it is time to water, always err on the side of dryness. While some enthusiasts spend hours on tillandsia care to keep things humid, this plant demands no such attention and prefers the dry air of a standard heated living room. They do not need daily misting, special humidity setups, or frequent checks. Simply set a reminder on your calendar for once a month, and otherwise leave the plant entirely to its own devices.

    Quick and easy maintenance

    Because these tall leaves do not drop or shed seasonally, they can gather a layer of dust over several months. To keep them looking sharp, simply wipe each upright blade with a damp cloth once or twice a year — a task that takes less than five minutes. If you ever spot a stray cottony speck on the foliage, dab it with an isopropyl alcohol swab immediately to keep the issue from spreading to other pots on your shelf.

    Unlike delicate orchids that demand complex phalaenopsis care, these tough specimens rarely attract flying pests, meaning you can put away the yellow sticky traps and enjoy a clean, fuss-free shelf. They do not require expensive additives or routine pruning to stay compact and upright. If a leaf ever becomes damaged or bent, you can simply cut it off at the very base with a sharp pair of clean kitchen shears, and the rest of the plant will continue to thrive untouched.

  • Mixing your own potting soil

    The basic ingredients

    Commercial potting soil straight from the bag often lacks the physical structure that indoor plants need to thrive over several years. In a closed container, standard peat-based mixes tend to pack down tightly after several waterings, squeezing out the microscopic air pockets that roots require to respire. To prevent this compaction, successful indoor gardeners rely on three primary components to build a custom substrate: a base for moisture retention, a coarse aggregate for drainage, and an organic chunk medium for structural durability. Coconut coir or sphagnum peat moss serves as the foundational base, holding onto moisture without immediately turning into dense mud. Coir is particularly easy to work with because it rewets more evenly than peat, which can become hydrophobic when completely dry.

    The second essential component is coarse perlite, a volcanic glass that has been heated until it expands like popcorn. These lightweight white granules create permanent air spaces within the container, allowing excess water to drain away freely rather than pooling around the root system. Horticultural pumice is an excellent alternative to perlite; it is heavier, which keeps top-heavy pots from tipping over, and it does not float to the surface during watering. Finally, adding medium-grade fir bark or pine bark nuggets introduces large-scale channels within the pot, mimicking the forest floor environment where many tropical understory species naturally grow.

    Finding the right ratios

    For a versatile, all-purpose blend that suits the majority of common tropical foliage plants, a reliable starting ratio is two parts coconut coir, one part perlite, and one part bark chunks. Measuring this out is simple: you can use an old plastic scoop, a clean tin can, or even a small bucket depending on how much substrate you need to mix. After blending these ingredients thoroughly in a large tub, you should test the texture by squeezing a handful of the damp mixture. It should hold its shape for a moment but then crumble easily when you poke it with a finger… if it stays in a solid, sticky ball, you need to add more drainage elements — perlite or pumice — to loosen it up.

    Adjusting the physical structure of your substrate is crucial for preventing common cultivation errors, especially since ignoring “overwatering signs” is the leading cause of indoor plant loss. A porous, well-draining mix allows for frequent watering without the risk of depriving the root system of vital oxygen. When arranging your collection on a three-tier plant stand, you will notice that containers placed on the lower, cooler shelves dry out much slower than those near the top. Tailoring the soil mixture by adding a handful of extra perlite to the pots destined for those lower shelves helps maintain a uniform drying rate across your entire display.

    Customizing for specific needs

    Environmental factors in your home, such as temperature, seasonal humidity, and illumination, also play a significant role in how your homemade substrate performs. For instance, plants positioned under intense “LED grow lights” will process water much faster than those sitting in a dim corner, meaning their soil can tolerate a slightly higher proportion of moisture-retaining coconut coir. On the other hand, if a room is naturally cool and damp, increasing the percentage of drainage aggregates ensures the root zone remains healthy. It is always safer to lean toward a faster-draining mix, as you can easily water a bit more often if the medium dries out quickly.

    When mixing your own substrates at home, safety and cleanliness should be top priorities, particularly if you share your living space with curious pets. While raw peat, perlite, and bark are generally inert, you must be careful about any organic soil amendments, such as fish emulsion or bone meal, which can attract animals or even contain compounds that are harmful to them. Keep these ingredients stored securely, especially when potting up “plants toxic to cats” that require careful placement away from reach. As one seasoned horticulturist once noted, “Good soil breathes.” By prioritizing structure and airflow over heavy nutrition, you can establish a stable, long-lasting environment that supports robust root development for years to come.