Persicaria amplexicaulis Blackfield


Newish selection with almost black tipped buds from which open dusky scarlet flowers. Like all the amplexicaulis bistorts it is extremely long flowering, lasting from mid summer and through autumn. Best in a retentive soil in full sun or part shade.

7 in stock



I have become increasingly fond of persicarias. I suppose it is not so much that I like them as admire them – for being generally good-natured, easy, reliable, long-flowering and attractive. As a group they generally prefer moist soil, can deal with our heavy, clay soil and do not suffer from any major pests and diseases. They are good for cutting too and their leaves are dull and weed-suppressing at worst and attractive at best.With spikes of intense blood-red flowers that open over a long period from even darker buds, Persicaria amp. Blackfield not only looks great, but it will help attract beneficial insects including bees. Even when not in bloom, the relatively large (to 10cm in length) oval to heart shaped foliage offers interest.

Position: Sun or part shade

Soil: Deep retentive is best

Rate of growth: moderate

Flowering period: Mid – late summer

Hardiness: Hardy

Pot size; 2L

Eventual height & spread : 1m x 60cm