Grass Clipping Mulch for Raspberries

Raspberries benefit from a 2.5-cm (1-in.) mulch of fresh clippings, applied twice a year - when the lawn is first cut in spring and again about July 1. Apply the mulch around the root zone, covering the entire bed or row and extending about 15 cm (6 in.) past to reduce creeping weeds. The mulch will add needed nitrogen as well as nutrients and organic matter, and it will help cool the roots, reduce weeds and lessen watering. Don't make it more than an inch deep, though: overly thick grass mulch can prevent water from penetrating. Grass clippings also benefit blackberries and tayberries.

While you're at it, you can also apply an organic berry food. Applying both at once works effectively and saves time. Do not fertilize or feed after July 1. Raspberries will absorb their last feed by mid August, at which point growth slows in preparation for winter.

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