The short answer
Feed healthy houseplants during active growth using the product's recommended dose and interval. Many need little or no extra feeding when winter light and growth are low.
Why this happens
Needs vary by species, light, and the nutrients already present in the mix. Fertilizer supplies nutrients, not energy; it cannot compensate for insufficient light or damaged roots.
What to do
- Check whether the potting mix already contains slow-release fertilizer.
- Choose a fertilizer labeled for your plant type.
- Measure carefully and follow the label rather than guessing.
- Reduce or pause feeding when growth slows.
Keep in mind
Do not fertilize a dehydrated or root-damaged plant to revive it. Excess fertilizer can burn roots and leave salt deposits.