How often should I fertilize my houseplants?
General Guidelines
Fertilizing frequency depends on the plant, its growth stage, and the season. During active growth (spring and summer), a balanced liquid fertilizer every 2 to 4 weeks works for most foliage plants.
In fall and winter, when growth slows, reduce feeding to once every 6–8 weeks or stop altogether. Plants use fewer nutrients when light is low.
Slow-release granules or spikes are another option. They feed for 2–3 months but are harder to control, so use them sparingly.
- Spring/summer: every 2–4 weeks
- Fall/winter: every 6–8 weeks or none
- Always dilute liquid fertilizer to half strength
Adjust for Specific Plants
Flowering plants like African violets and peace lilies may need more frequent feeding during bloom, while succulents and cacti need very little—often just once in spring and once in summer.
Plants in low light or that are dormant need less. If a plant isn't growing new leaves, it doesn't need much fertilizer.
Watch for signs of over-fertilizing: white crust on soil, brown leaf tips, or wilting after feeding. If you see these, flush the soil with plain water and skip fertilizer for a month.
- Flowering plants: feed every 2 weeks in bloom
- Succulents: feed once in spring and summer
- Low-light plants: feed half as often
Common mistakes
- Fertilizing on a strict calendar schedule instead of watching the plant's growth.
- Using full-strength fertilizer, which can burn roots and cause leaf tip burn.
- Feeding a dormant or sick plant, which stresses it further.
