i want to have a roadside berry patch. i have red raspberries, blackberries, strawberries, gooseberries. because i want the seasons to overlap alittle more. i was thinking about adding boysenberries or dewberries or tayberry. boysenberries especially since they ripen in june, and the blackberries ripen in july. so i could sell longer. i live in missour, zone 5-6 1. which would be better to add.? 2. when does dew berries ripen.? 3. when does tayberrys ripen.? 3 . i know that i should not plant black raspberry near my reds, and i think tayberry and boysen berries are a raspberry/blackberry cross. should i not do this? 4. any one need some raspberries?