Grass can spread vegetatively through rhizomes that spread below the soil. ... Each tiller that grows out from the grass can produce seed from its own inflorescence. Grass growing in dry conditions is less likely to spread out from rhizomes due to a lack of resources.

Will grass spread to bare spots?

Will Grass Spread to Bare Spots and Repair Itself? (Answered) It depends. Grass with rhizomes (under-ground runners) spreads laterally, and naturally fills in bald or bare patches on your lawn. ... If you have this type of lawn grass, you'll need a hands-on approach to fill bare spots with some compost and grass seed.

How do you encourage grass to spread?

Organic fertilizers or a mixture of fertilizer and compost facilitates uptake of nutrients by roots. Water new grass regularly. Keep soil moist until new grass becomes visible. Water daily or every other day, with the goal of giving new grass plants an inch of water per week.