Things Needed
Tip
burn up or throw away pruned bramble to preclude spreading disease . Even red-hot compost spate may not kill all the pathogen contain in blackberry bush brambles . Prune your blackberry ( both thornless and steady ) each year to prevent the patches from becoming an difficult mess .
Warning
fix your pruning equipment before pruning and between industrial plant in a 10 percent whitener / piddle solution to forestall spread disease . Do not rationalize all of your blackberry bush cane to the ground . If you do , you will not get Berry the undermentioned summertime . Always use piercing pruning shears , pruning hook and saws and make clean cuts to forbid damaging your plants .
Blackberries are a welcome treat on a hot summertime day . But result untended , blackberry bush plot can become a riot of bramble with petty fruit . A well - tended blackberry bush patch is easy to harvest , the canes are healthy and productive and you will get grownup and juicier berries than from an untended patch . Thornless and regular ( bramble with thorns ) blackberry bush are pruned in the same way . The first - year vegetative brambles , called primocanes , are tipped or cut back to produce sturdier canes with loads of sidelong offset . The canes that produce fruit , 2 - class - old floricanes , are pruned to the ground after harvest . blackberry are biyearly plants ; this mean they produce fruit on 2 - class - old canes . You must have both 1- and 2 - year - old cane produce together to harvest yield yearly .
Step 1
Prune spineless blackberries for the first time after planting . take away dead or broken cane rationalise them off at the ground . If your blackberry bush plant has more than eight cane after removing the dead and broken canes , select the strongest four canes to keep and prune the rest back to the ground . dress the remaining four cane back to 6 inches .
Step 2
thin out primocanes ( first yr vegetal canes ) back to 48 inch in June or July . If you are growing upright ( non - trellised ) thornless blackberries , cut primocanes back to 30 inches .
Step 3
Remove floricanes ( cane that have borne fruit ) after harvesting all the yield . Use loppers or a pruning saw to remove cane at the earth .
Step 4
Remove supererogatory primocanes when you bump off floricanes . Select the strong 4 to 8 cane to bear fruit the next yr and reduce the rest back to the ground .
Step 5
Cut back sidelong or side shoots to 12 column inch in early bounce before the spineless blackberry bush depart to thumb out .
