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GreenUpGuide

Topic

Seasonal timing

When to seed, feed, aerate and treat. Every answer here changes by growing zone, so every guide says which zone it is for.

Cool

When to Aerate a Cool-Season Lawn

Early autumn, August into September, while the grass grows hard enough to heal. Spring aeration works but cancels your crabgrass control for the year.

·3 min read

Warm

When to Fertilize a Warm-Season Lawn in Spring

Wait until the lawn is about half green and the last frost has passed, usually mid-April to May. Feeding dormant bermuda grows weeds and risks frost damage.

·3 min read

How Often Should You Water New Grass Seed?

Two to three light waterings a day until germination, then fewer and deeper. The target is a damp top half-inch that never dries out and never turns to soup.

·4 min read

When to Apply Pre-Emergent, by Growing Zone

Crabgrass germinates when soil hits 55°F for three days running. Apply just before that. Here is when it happens in each zone and the mistake that wastes the bag.

·4 min read

Cool

When to Overseed a Fescue Lawn in the North

Late August to mid-September is the window. Here is the soil temperature that opens it, the frost date that closes it, and why spring seeding is the weaker option.

·4 min read