Getting your raised garden beds up and running in February means the soil has time to settle and the beds are ready the second spring hits. It takes a weekend of heavy lifting to haul soil and assemble the frames, but you avoid the rush when every nursery sells out of cedar in April.
Lumber and soil prices dip slightly in late winter before the spring gardening rush kicks in. You want to price out kits versus buying raw cedar boards at the hardware store, and always check local landscaping yards for bulk soil delivery rates rather than buying individual bags.
That 18-month window is a deadline, not free money. If you still have a balance left when the intro period ends, the remaining amount gets hit with standard interest.