dahlia 'Bishop of Leicester'

'Bishop of Leicester' is a bushy, clump-forming, tuberous perennial to 60cm in height, with toothed, pinnate, purple to black-flushed, dark green leaves from spring to autumn. Pale lavender flowers, with darker lavender bands down the centre of each petal, are borne from midsummer to early autumn

Grow in fertile, humus-rich, well-drained soil, enriched with organic matter and general purpose fertiliser, in full sun. Pinch out growing tips to encourage bushy plants and stake (see staking perennials). Water freely in dry periods. Lift and store tubers in autumn to replant or use as a source of cuttings in spring. See dahlia cultivation

Deadhead to prolong flowering. Cut back to near ground level in the autumn, before lifting and storing for the winter

Propagate by softwood cuttings taken in spring from shoots from stored tubers, or divide the tubers ensuring each division has a viable bud

Aphids, leaf miners, glasshouse red spider mite and slugs are common pests. Earwigs sometimes damage blooms. Capsid bug and caterpillars are occasional pests

Powdery mildews can be damaging in dry conditions. In wet weather grey moulds and other fungal rots can be a problem. Fungal rots can also damage stored tubers. A virus may cause stunting, leaf markings and distortion

dahlia 'Bishop of Leicester'

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