Most Common Ways to Kill a Houseplant
We've seen some posts about houseplants and how they can contribute to a home's appeal. In reading replies, we've also seen that some of us do not have "green thumbs" and tend to kill those plants.
Here are the most common ways that we tend to kill houseplant - and how to fix those problems.
Overwatering is the most common contributor to houseplant death. Far more plants die from overwatering than underwatering, both indoors and out.
To ensure that you don't overwater: Stick your finger into the soil. If it's damp, hold off adding water until it's dry.
Provide low humidity. Heaters and air conditioning act as a dehumidifiers, making average levels well below the 40 to 60% humidity plants prefer.
Fix the problem: Try placing houseplants on top of pebbles in a shallow tray, and keep it filled with water, as an effective way to provide additional humidity. Make sure the bottom of the pot is not directly in the water. Mist your plants each day is effective in boosting humidity levels. If you will be away for a week or so, make a temporary humidity tent by placing dry-cleaning bags over the plants, or you can place them in the bathtub, with a little water in the bottom.
Give it very little light. Although some houseplants can survive on just artificial light, they are the exception to the rule. In fact, the most important factor in determining if a plant is suitable for surviving indoors is its ability to survive in low-light environments. However, almost all plants benefit from natural light.
How to fix the problem: Some amount of natural light per day is good for almost all plants. Set them in an area near a south-facing window, if possible. Rotate the plant periodically, so all sides benefit from the most direct sunlight during the week.
Overfertilize it. Because these plants typically don't photosynthesize at the same rates as outdoor plants in a full-sun environment, they need less supplemental nutrients. Forcing plants to grow with artificial stimulants under lower-light environments places the plants under stress and can disrupt a plant's natural cycles and rhythms and deplete reserves.
The fix: To replace nutrients that leach through the soil, feed your plant with a water-soluble fertilizer at half the amount suggested for outdoor plants once or twice a month.
Expose your plants to drafts or direct heat. Most houseplants are tropical, and so in their natural environments, they thrive in warm climates. However, exposing plants to direct heat when placed near a vent will quickly dry them out. Conversely, cool or cold drafts can be too much for heat-loving plants.
Fix it: Keep plants away from drafty windows, doors and heating vents.
Ignore pest problems. Just because a plant is indoors doesn't mean it's free of pests. Many insects come into your house undetected under the protective cover of the beautiful foliage of the plant. In fact, houseplants can be the perfect host for many pests, since they aren't exposed to natural beneficial insects and other predators that would otherwise keep populations in check.
To fix this: Most houseplant pests, such as mealy bugs, white flies and aphids, can be dealt with using a mild soap and water bath or horticultural oil. If weather permits, take the plant outside and spray it with the hose, or leave it outside and let natural predators do the job.
Allow it to become pot-bound. Just because that plant you've had for years is still looking good above ground, don't assume all is well below. Eventually roots can become intertwined within the confined space of a container; water, nutrients and even oxygen can have a tough time getting through.
The fix: Once a year or so, lift the plant out of the container and check the roots. If they're tightly wound in a circular pattern, it's time to repot into a slightly larger container. Loosen the roots to break up the pattern, refresh the soil and repot.
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