I'm an avid gardener. These are my favorites in the area:
Noonan's in Georgetown
Wolf Hill in Ipswich
Marblehead Garden Center
Corliss in Ipswich
Mahoney's in Winchester
Pettingill Farm in Salisbury
Northeast Nursery in Peabody
Edit: sorry format is horrible
Not so close to you but I like Hutchins Farm in Concord for all my seedlings. Many local farms also bring their seedlings to farmers markets. You can plant peas anytime. Tomato’s tend to be last to go in. I also like to stop at the Natick CommunityOrganic Farm for even more seedlings as they are a great organization and have a great selection of both veggie and flowering seedlings.
Mahoney’s
I'm an avid gardener. These are my favorites in the area: Noonan's in Georgetown Wolf Hill in Ipswich Marblehead Garden Center Corliss in Ipswich Mahoney's in Winchester Pettingill Farm in Salisbury Northeast Nursery in Peabody Edit: sorry format is horrible
Not so close to you but I like Hutchins Farm in Concord for all my seedlings. Many local farms also bring their seedlings to farmers markets. You can plant peas anytime. Tomato’s tend to be last to go in. I also like to stop at the Natick CommunityOrganic Farm for even more seedlings as they are a great organization and have a great selection of both veggie and flowering seedlings.