Substrate ingredients
The minerals and organics behind the chunky, fast-draining mixes in the Substrate Library.
My most-reordered aggregate. The structural backbone of every chunky mix, holding air at the root without breaking down.
Structure that holds a touch of water without turning to mush. The counterweight to pure pumice.
Expanded clay for semi-hydro setups and chunky drainage. Standard pebbles, or mini for finer root systems.
Does the job orchid bark usually does in my aroid mixes, without the spore load it can carry.
The gentle organic fraction in an otherwise mineral mix. A little goes a long way.
Buffered coco coir for the water-holding organic fraction. I use the GROW!T chips.
Feeding & supplements
Plants in coir or heavily mineral mixes often run short on calcium and magnesium. This tops them back up.
Pest monitoring & control
The first thing I reach for to catch fungus gnats and thrips early. The fungus-gnat protocol shows where they fit.
The biological knockout for fungus gnats. BTI (Bacillus thuringiensis israelensis) targets the larvae in the substrate and breaks the lifecycle without touching anything else. Drench per the fungus-gnat protocol.
Plant care
For keeping big foliage dust-free so it can actually photosynthesize. Easier than wiping leaf by leaf.
How we choose
A recommendation has to clear one bar: would we put it on our own bench, in our own soil, near our own plants? If the answer's no, it doesn't get recommended, no matter who's selling it. We'd rather name the cheap thing that works than the expensive thing that pays better. When something's worth skipping, we say so.
A commission never changes a verdict.
Plant Profiles stay free of commercial links, always. We won't recommend something we wouldn't use ourselves. If a popular product underperforms, we'll say so, even when we can't earn from saying it. And we won't sell your attention with ad clutter dressed up as advice. The science comes first; the recommendation follows from it; the commission is the last thing in the room, never the first.
The fine print
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