House Plant Food

House Plant Food is built for steady, light feeding rather than occasional heavy doses. Mix 1 teaspoon per quart of water and feed every 1–2 weeks in spring and summer while plants are actively growing, dropping to every 4 weeks in fall and winter as lower light slows them down. You can also mist leaves with half a teaspoon per pint every 1–2 weeks if you like. One dilution suits the whole collection, so you can mix a can and water everything on your normal rounds.

For the large majority, yes. Pothos, philodendron, monstera, palms, dracaena, snake plants and peace lilies are all foliage plants with the same basic appetite, and House Plant Food’s 3-1-2 ratio is built around it: nitrogen leading for leaves, phosphate kept low because most houseplants rarely flower indoors, and potash for sturdy stems. The 1 teaspoon per quart dilution means light feeders like ZZ and snake plants take it too. The exceptions are specialists: orchids, succulents in lean mixes, and carnivorous plants do better on formulas built for them.

Check watering first. Constantly wet soil suffocates roots and yellows leaves from the bottom up, and no fertilizer fixes that. If watering is right and your houseplant has been in the same pot for over a year, spent potting mix is the likely cause: older leaves yellowing between the veins points to magnesium, pale new growth points to iron, and both sit at the center of chlorophyll production. House Plant Food supplies both alongside its nitrogen, so the leaves that form after you start feeding come in green.

Lightly, yes. House Plant Food’s schedule drops to every 4 weeks in fall and winter rather than stopping, because most houseplants slow down in lower light but don’t go fully dormant the way outdoor plants do. A reduced feed keeps them maintained without pushing growth the light can’t support, and the 3-1-2 concentration at 1 teaspoon per quart suits that lower demand. If a plant is fully resting, with no new growth at all, skip it until you see it wake in late winter.

Overconcentration can burn any plant, and browning leaf tips and edges are the classic sign. House Plant Food is a dilute liquid feed, and dilution is what matters here: fertilizer burn happens when concentrated salts sit against the roots, from too much product in too little water. Mixed at 1 teaspoon per quart, the 3-1-2 formula, with most of its nitrogen in nitrate form, arrives at a strength roots take up as they water. If you’ve overfed in the past, flush the pot with plain water until it drains freely, then resume.

Most of the nitrogen in House Plant Food is nitrate, which roots absorb directly, so the formula starts working with the first watering. Expect richer green color within 1–2 weeks and new growth, fresh leaves and new vines, within 3–5 weeks of regular feeding in the growing season. Fast growers like pothos and philodendron respond first; slow ones like snake plants and ZZ show it over a couple of months, at their own pace.