Feed or not to feed

Do not feed it man. That flower powder is organic and it needs microbes to make it available to the plant and a lot of them, the soil really needs to be alive per say. But where you used synthetic nutrients you can’t add any in now because the soil is to saturated with synthetic nutrients which will cause the microbes to go dormant, Im pretty sure you can only have like 50ppm of phosphorus before it’s to much...at least that’s what the teeming with microbes book I have has taught me. Also Phosphorus can’t be flushed out, it’s known as the devils element for a reason good luck man.