Encyclopedia & FAQ's

DIY Frequently Asked Questions / When should I apply fertilizers to plants and trees?


Don’t apply liquid fertilizer at the same time you plant. Some root hairs will break, and the fertilizer will burn them. Wait 2 to 3 weeks after planting before you fertilize. In general, apply fertilizers to plants at the beginning of the growing season. For deciduous trees fertilize when leaves appear; and for evergreens, when it turns cold. Shrubs do not require much fertilizing.