I think of the first week (or so) as the seedling stage, when the plant just has cotyledons and is getting its sugars from the remaining germ in the seed. Fertilizer isn’t needed yet - in fact, is detrimental.
Once the seedling has developed some roots and the first pair of true leaves have spread out, it’s ready to start generating sugars from photosynthesis. This is when veg stage starts, and you can begin to introduce a weak dose of nutrients.
Think of light as the plant’s real food, and nutrients as vitamins that assist the metabolic processes.
Once the seedling has developed some roots and the first pair of true leaves have spread out, it’s ready to start generating sugars from photosynthesis. This is when veg stage starts, and you can begin to introduce a weak dose of nutrients.
Think of light as the plant’s real food, and nutrients as vitamins that assist the metabolic processes.