Overwatering
Overwatering is the single most common cause of houseplant death. It occurs not just from giving too much water at once, but more often from watering too frequently before the soil has had a chance to dry out appropriately.
What Does It Mean?
Overwatering means the root zone remains saturated for extended periods, depriving roots of the oxygen they need to function. Roots sitting in waterlogged soil begin to decay, a condition known as root rot, which is caused by opportunistic fungi such as Pythium and Phytophthora. Symptoms include yellowing lower leaves, mushy stems, a sour soil smell, and wilting despite moist soil.
Why It Matters
Healthy roots require a balance of moisture and air in the soil. When pore spaces stay filled with water, roots suffocate and lose their ability to absorb nutrients, leading to a cascade of decline. Root rot can spread quickly and is often fatal by the time above-ground symptoms appear, making prevention far more effective than treatment.
How to Apply It
Always check the soil moisture before watering by inserting your finger one to two inches deep; water only when the top layer feels dry for most tropicals. Use pots with drainage holes and discard any water that collects in saucers after fifteen minutes. Adjust your watering frequency with the seasons, as plants need far less water during the shorter, cooler days of winter.
Examples
- •A Peace Lily whose leaves yellow from the base up because the saucer keeps the soil constantly wet.
- •A succulent developing translucent, mushy leaves after being watered on a rigid daily schedule.
- •A Dracaena with brown leaf tips and a foul-smelling root ball caused by poor drainage.
Related Topics
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