Kiowa planting and spacing
I have two 60' grape trellises and recently set bracing posts at each end of each trellis. I am thinking about planting something in the spaces now occupied by the bracing posts (sticks out 7.5 ft from last trellis line post). I am leaning towards kiowa blackberries due to the fact theat they are upright growers and don't require trellising (once established).
What would be a good spacing for these? Should I just plant one plant in the center of my extra 7.5ft space or could I squeeze two in there? I don't know how big they get so I don't want to overcrowd the plants.
If I can get two per 7.5 ft spacing, I may plant four of them and four of another upright variety.