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You asked:

Why do my Pelargonium cuttings keep rotting from the base?

Our Advice:

This 'black leg' is often caused by an infection entering the cut surface at the base of the cutting. After preparing the cuttings, leave them in a shady place for about 30 minutes to let them wilt slightly and allow the cut surface to dry. Then insert them into pots of sandy compost and cover them with a white plastic bag.

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