We have planted in raised bed boxes for 25 years. We have vertical posts screwed to the boxes and horizontal rails fasten to them on the sides. We can then just slide precut slats from side to side on the two levels of rails as the plants grow. Once above the first rail we trim out all the leaves and suckers below. This allows the air to move under the plant mass, and facilitates watering without getting the blooms and foliage wet. The fruit is also at waist heigth for harvesting. Also in the pic is the A frame we use for peas. they get up to 7' tall. I just went out and took the last pic. Yesterday there was 2' of snow in the garden, Temp has dropped from 49 this morning to 38 now. Raining at .32 in/hr at the moment.
Loren, the Acg.