Fertilize your houseplants in the spring.
You can start fertilizing your houseplants about 8 weeks before the last spring frost.
As in the vegetable garden, the ice saints are an ancestral landmark that has proven its worth.
This means starting to apply fertilizer in mid-March.
If you use a liquid fertilizer, apply half the recommended dose, once a month until summer.
Indoor plants will thus be fed at a time when they are only preparing for active growth and do not yet need large amounts of nutrients to support intense photosynthesis or flowering.
Fertilize indoor plants in summer.
When summer arrives, it's time to switch to a more regular schedule of houseplant fertilization.
The frequency of summer fertilizer applications depends on the type of fertilizer you use.
Natural liquid fertilizers are applied more frequently, every two weeks, or weekly for fast-growing plants.
Fertilize indoor plants in the fall.
About 8 weeks before the first expected fall frost, reduce the amounts and frequency of your fertilizers.
Most houseplants are not in a state of active growth during the winter and therefore should not be fertilized.
There are a few exceptions to this rule.
Some plants, such as orchids for example, can stay in bloom all winter long if they have enough nutrients and light.
In this case, an application of a half dose of liquid fertilizer in the middle of winter can be envisaged.
If you have just repotted your plant with good quality soil, you can refrain from applying fertilizer during the first 1 or 2 months.
This calendar works assuming you live in a temperate climate.
In a climate that doesn't experience regular winter frosts, continue to fertilize your houseplants throughout the winter, but do so at half the amount and frequency of your summer applications.
And if you live in a tropical climate, where it's always hot, keep fertilizing your houseplants in the summer all year round.