Houseplants run out of nutrients long before they outgrow their pots — most potting soil is depleted within a few months, and after that every new leaf comes at the expense of an old one. A gentle liquid fertilizer mixed into your normal watering keeps nutrition steady without the buildup that heavy occasional doses cause.
TPS houseplant formulas are plant-specific: the ratio a monstera wants for big fenestrated leaves is not the ratio an orchid wants for reblooming. Start with the plant you own the most of, or use Indoor Plant Food to cover a mixed shelf with one bottle.
| Plant | Product | Why |
|---|---|---|
| Mixed collection / most houseplants | Indoor Plant Food | One gentle 3-1-2 bottle for the whole shelf |
| Monstera | Monstera Plant Food | Nitrogen-forward for big, split leaves |
| Fiddle leaf fig | Fiddle Leaf Fig Plant Food | Steady growth without leaf drop |
| Snake plant | Snake Plant Fertilizer | Low-dose formula for slow growers |
| Orchids | Orchid Plant Food | Built for bark mixes and rebloom |
| Root health on any of the above | Houseplant Root Supplement | Pairs with any liquid fertilizer |
| Season | How Often |
|---|---|
| Spring & summer | Every 1–2 weeks, diluted into your normal watering |
| Fall & winter | Every 4 weeks — growth slows, so feeding does too |
| After repotting | Wait 2–3 weeks, then resume at half strength for two feedings |
Every 1–2 weeks in spring and summer, dropping to every 4 weeks in fall and winter. Diluting fertilizer into your regular watering keeps nutrition steady — houseplants respond better to small consistent feeding than to occasional heavy doses.
Yes — potting soil holds a few months of nutrients at most, and unlike garden plants, a potted plant can't send roots out for more. Once the soil is depleted, growth slows, new leaves come in smaller, and older leaves yellow as the plant cannibalizes them.
Mostly. A gentle balanced formula like Indoor Plant Food suits pothos, philodendron, ferns, palms, and nearly all common houseplants. Plants with specialized needs — orchids, succulents, carnivorous plants — do better on their dedicated formulas.
Watch for crusty white residue on the soil surface, brown leaf tips and edges, or wilting right after feeding. If you see those, flush the pot with plain water and resume at the directed dilution — at label strength, mixed into normal watering, over-fertilizing is rare.