This is my first foray into the Gardening section of MN - please be kind 
Four weeks ago I used Miracle Gro Evergreen 4 in 1 lawn food. The moss has died off and the lawn is looking now looking nice and green and healthy. Winner.
However, there are some bare / sparse patches that I would like to seed. The lawn food packaging said wait 8 weeks before seeding; do I really need to wait this long? It seems quite excessive. I'm happy to if need be, but I was wondering with the rain we've had if I might be ok to seed it sooner?
Any advice much appreciated.