Prun­ing rasp­ber­ries

Garden Answers (UK) - - Gourmet Grower -

When your rasp­berry cul­ti­vars fruit doesn’t just de­ter­mine when you buy dou­ble cream, it also de­cides how they should be pruned. Cru­cially, sum­mer-fruit­ing rasp­ber­ries carry fruit on canes grown the pre­vi­ous year, au­tumn-fruit­ing rasp­ber­ries pro­duce their fruit on canes grown this year, and this af­fects how you prune them. Au­tumn-fruit­ing rasp­ber­ries are bliss­fully sim­ple to prune, just cut back ev­ery cane to ground level in winter. In spring, new shoots will ap­pear that flower and fruit from late sum­mer into au­tumn. Sum­mer-fruit­ing rasp­ber­ries need a dif­fer­ent ap­proach. When canes have fin­ished fruit­ing in sum­mer, cut them out but leave the young green shoots that have grown (but not fruited) this year, these should be tied in ready to carry a crop next year. Tie in the best strong young stems ev­ery 10cm (4in), cut­ting out weaker shoots and any ex­tras. The older stems are easy to spot, be­ing more brown and woody. You can also move any suck­ers to fill ob­vi­ous gaps.

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