Monty Don has found hellebore leaf spot on his oriental hellebore hybrids. In this Gardeners' World video guide Monty shows you how to identify the symptoms of this common fungal disease and what to do to deter its spread.
Join Gardeners' World lead presenter, Monty Don, and BBC Gardeners' World Magazine Editor, Lucy Hall, for spring in the Italian Lakes, in celebration of the 50th anniversary of the Gardeners' World programme.
BBC Gardeners' World Magazine subscribers get a 25 per cent discount on standard tickets to BBC Gardeners' World Live. Or, save 10 per cent on VIP tickets. Offer ends at midnight on Sunday 18 June, 2017.