Fertilization

When should I switch my plant to 50%, 75, 100% fert?

Closet Grow said:

When should I switch my plant to 50%, 75, 100% fert?

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Are you using soil or hydro?

When your plant is 10 inches tall, test the waters with some 1/4-1/2 strength food. Your veg nutes aren't as important as the fruiting nutes. If your plant gets to 18 inches and fairly bushy, it's probably ok to go full strength. Each strain is different though and it really takes a sixth sense (aka experience) to know when and how much to feed. Generally, out of 3 waterings, you'd feed twice, repeat until it's time to flush.

Soil, 2/5 inert matter