I cut old bamboo into 10" lengths and lashed them together (roughly 9-15 in a bundle) with string I then put these 'parcels' in various places (1) trees in the boughs, (2) at the base of a clematis plant, (3) by a jamine trellis, (4) by a fence in my herb bed. Seemed to have worked and recycled my old bamboo which was either broken or useless.

Bees adore borage and blue delphiniums, they also love hyssop.

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Best wishes
Andrewo
Harbinger of Rhubarb tales