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Who we are
We're a small team with more than 20 years of growing experience behind us, mixing plant-specific fertilizers in our own US workshop. Every bottle is formulated here, tested on our own plants, and shipped by the people who made it.
Most fertilizer on the shelf is a general-purpose blend. That's fine if you have one kind of plant. Most people don't. An orchid, a lawn, a citrus tree, and a monstera all want different things, and feeding them the same way is how you end up with yellow leaves and no idea why.
TPS came out of more than 20 years of growing. We were growers who wanted formulas built around the plant, not the bottle, so we made them ourselves. Today that's still how it works: we formulate, mix, and bottle every product in-house, and we don't put a formula up for sale until it has gone through our own plants first.
Every TPS formula is mixed and bottled in our own US facility. No white-label factory, no mystery batch. When you ask what's in the bottle, the person answering is the one who put it there.
Each formula pairs the NPK ratio a plant actually wants with the micronutrients and kelp it needs to use them. Plants that feed the same way share a ratio, so that's how we build: the NPK, the nitrogen source and the micronutrient package are set for how that group of plants grows, and every label carries the dilution and schedule for the plant on the front.
New formulas run on our own benches first. If something doesn't perform, you never see it. 44,000+ reviews say the ones that made it through are doing their job.
Buying a fertilizer online means trusting a label you can't smell or test. We'd rather take that risk off you.
Indoor, outdoor, orchids, succulents, lawns, fruit trees and more. Pick your plant and we'll show you exactly what to feed it.
Tell us what you're growing and we'll match the right formula.
Start typing your plant above.