Watering houseplants may seem like a simple task, but the truth is, it’s an art. Whenever I speak to someone who “can’t keep houseplants alive” – more often than not it’s down to incorrect watering. Overwatering is a common mistake, leading to root rot and eventual death of the plant. On the other hand, underwatering can cause plants to wilt and weaken. This guide aims to offer comprehensive insights into watering houseplants for the best health and growth.
How often should you water your houseplants?
This can vary greatly depending on the type of plant, the size of the pot, the potting mix, and the indoor environment. As a general rule, most houseplants prefer the top inch of soil to dry out before being watered again. Plants like succulents need even less, while aquatic plants prefer consistently moist soil. It’s essential to research your specific plant species for the most accurate watering information.
How should you water your houseplants?
When you water your plants, make sure you’re doing so thoroughly. This means watering until moisture comes out of the drainage holes in the pot, ensuring the roots are sufficiently moistened. However, avoid getting the leaves wet to prevent fungal diseases. Always remember to empty the saucer to avoid waterlogging and root rot.
When is the best time to water your plants?
Most houseplants are best watered in the morning. This allows the plant time to absorb the water before the hotter and often dryer conditions of the afternoon, and it reduces the risk of fungal diseases by allowing excess water on the leaves to evaporate.
However, it’s important to note that the watering needs of your houseplants can change with the seasons. During the warmer, summer months, plants are often in a period of active growth and may require more frequent watering. Conversely, in the cooler, winter months, many plants enter a period of dormancy where growth slows, and watering needs are typically reduced.
What are the signs of overwatering?
Signs of overwatering can be misleading, as they often mimic those of underwatering. Overwatered plants may have yellowing leaves, a wilted or droopy appearance, brown or blackened roots, or a general stunted growth. The smell of rot or mould in the pot is a definite sign of overwatering.
What should you do if you’ve overwatered your plant?
If your plant has been overwatered, start by stopping any further watering. Remove the plant from its pot and inspect the roots. If they’re brown or black and smell a little rotten, you’ll need to trim away the damaged parts. Repot the plant in fresh, well-draining soil and allow it to dry out before watering lightly.
What are the signs of underwatering?
Underwatered plants typically exhibit curling or wilting leaves, dry leaf edges, slow or halted growth, and brown, crispy leaves in severe cases. The soil will also feel dry and may be pulling away from the sides of the pot.
What should you do if you’ve underwatered your plant?
If you discover your plant is underwatered, give it a thorough watering immediately. For severely underwatered plants, you might need to soak the entire pot in a bucket of water to rehydrate the dried-out soil and root ball.
Should I mist my houseplants?
Misting can be beneficial for tropical plants that love high humidity. While it doesn’t replace watering, it can help recreate the plant’s natural environment. Always mist with room-temperature water to avoid shocking the plant.
Need a little more help? Visit our Essential Houseplant recommendations page to find products to aid your watering and read our Guide to repotting houseplants.
Last updated: 26 June 2023
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