An orchid does not grow in soil. It grows in an inert medium - pine bark, sphagnum moss, leca - a medium whose sole purpose is to grip the roots and provide them with air. Unlike garden soil, this medium contains almost no nutrients.
The meaning is simple: whatever you don't provide to the orchid, it won't receive. An orchid that isn't fertilized doesn't "manage on its own" - it simply stops producing new leaves, the roots weaken, and most importantly: it stops producing new flower spikes. This is the exact explanation for an orchid that bloomed once in the store and has just been sitting there green ever since.
The manufacturer defines this product precisely as: a fertilizer developed for orchids growing in inert or neutral media, lacking nutrition, which require balanced and continuous fertilization.










