the hoops are for early start and end of season extension. May even try winter growing cold hardy greens. I am laying 6 inch logs as a weed barrier on each side of the beds buried at ground level. these will run full length of the bed and will be 4 ft inside width. they say the logs rotting create a favorable soil condition. I would space these rows wide enough to work in between and mulch the walkways with wood chips and bark mulch. spaced so my tires are on walkways and I would be able to till the beds. being in new hampshire the soil I am establishing these beds in is stone and sand so it will be removed, de stoned, mixed with loam, manure, and compost and the beds will be refilled.
sounds like alot of work but once established they need to be worked. no fertile river bottom here just stone..............