New Grower how to know when to add nutes

When to start feeding always depends on the soil being used. FFOF contains guano and worm castings which should be sufficient to feed for the first 3-4 weeks. With semi soil less mixes like Pro Mix, feeding is needed from the start as it contains no nutrients.

Regarding using Big Bloom during veg, I would follow the recommendations of FF but at quarter, working up to half their recommended strength. When used with their Grow Big you get a combined NPK of 6.01 - 4.3 - 4.7. Plants do need some P and K during veg but the amount of N should obviously be higher.
 
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