Persicaria bistorta 'Superba' (Knotweed 'Superba') will reach a height of 0.75m and a spread of 1m after 5-10 years. A further Chris Ghyselen selection, with full-blooded, crimson flowers displayed on particularly substantial inflorescences. Vigorous, Persicaria affinis 'Superba' (Lesser Knotweed) is a mat-forming, semi-evergreen perennial boasting charming spikes, 3 in. • Hauser & Wirth Somerset. Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4. Blooming for weeks from midsummer into fall, the blossoms are borne above the foliage mat of elliptic to lance-shaped, deep green leaves which turn bronzy-red in the fall. Sun Exposure. This one is distinguished from other white-flowered cultivars by the increased length and breadth of its upright inflorescences, which have a distinct pink tinge, and large light green leaves. This can be a considerable virtue if you are looking to cover a wide area with something attractive that will exclude even the most determined weeds; however, in the mixed border it can become a bit of a nuisance as the wiry stems gain considerable purchase on the soil with their roots, and are hard to extricate from neighbouring plants. A robust plant that is refined and elegant in all its parts and should be grown more often. 1.2-1.5m. Runs at the root and may Great for surpressing weeds. The leaves are dark green enlivened by pale midribs and a subtle pleating between the veins. See more ideas about Plants, Prune, How to find out. From early summer into autumn, the foliage is studded with upright 10cm (4in) spikes of rose red flowers which turn an attractive pale pink as they fade. ©2004-2020 Shoot Limited. Height - 40cm. 2.5m. Aug 4, 2015 - This Pin was discovered by CVT tuinarchitectuur. Thin, spidery inflorescences appear in September. Thanks for your patience. Grow Persicaria bistorta ‘Superba’ in moist but well-drained soil in full sun to partial shade. Persicaria campanulata. Discover some of the most glorious gardens from around the world.Find out more, Already have an account with us? Persicaria are found in pretty much every country worldwide. Cut back flower stems after flowering. account. Persicaria affinis 'Superba' (Knotweed 'Superba') will reach a height of 0.2m and a spread 'Superba' _ 'Superba' is a vigorous, mat-forming, semi-evergreen perennial with elliptic, dark green leaves turning bronze in autumn and erect, dense spikes of tiny, pale pink flowers turning crimson with age. Get expert info and easy to follow monthly care reminders for the plants in your garden by signing up for a free Shoot account. Plants are easily divided in early spring. 80cm-1m. your own Pins on Pinterest Smaller in stature than most Persicaria amplexicaulis cultivars. From 30cm to 2.5m, Persicaria have a general preference for rich soil and sun, with a few exceptions, but most species are adaptable. They may have damned some of their better-behaved cousins by association; however, although many of the species recommended here display a robust constitution and an agreeable self-sufficiency, they are all fairly easy to control when required. Copious crepe paper-like dark green leaves in curly festoons decorate the base of these showy and long-lasting 4 to 5 in. Very easy to grow. Clay, Loamy. Noteworthy Characteristics. Create your free Water Requirements - high. Pot size: 2 Litre £ 9.99 Add to basket. Now it's time to hear about persicaria, how to grow it and my favourite ones. Although it will tolerate some shade, the purple and silver variegation is more marked with exposure to sunlight. Persicaria affinis. Sometimes sold as Persicaria alpina. Moisture-retentive, Moist but well-drained. Enter your details below and click 'Subscribe' and you'll have a free Shoot account. Slugs and snails may make an impression on the foliage of Persicaria virginiana and its cultivars, but even they are not bothered too much. Cultivation. Cottage/Informal, Beds and borders, Garden edging, Ground Cover, Low Maintenance, Prairie planting, Rock. Other than an occasional haircut, persicaria is a low maintenance plant. The pronounced maroon chevrons on each leaf, contrast well with the pale-green background. Tel 015395 52946, sussexprairies.co.uk, • Beth Chatto Nursery, Elmstead Market, Colchester,  Essex CO7 7DB. To add notes for this plant login to your account or register for a new account. As a tribe they tend particularly to enjoy rich, moist soil, but are surprisingly adaptable to poorer, drier conditions. RHS H6. They remain in place on the plant and provide winter interest. Poorer conditions will restrict their vigour somewhat, as well as splitting and re-planting their clumps regularly in autumn. It can tolerate partial shade too. RHS H7. It grows to 4 feet high and wide. Optimal Growing Conditions. Great for cutting. long (8 cm), densely packed with tiny, pale pink flowers that deepen to crimson as they mature. £6.70. Most of the species featured here will flower from July to September or October; some species have a late flourish of blooms in September but these may be considered primarily as foliage plants. Persicaria polymorpha is a shrubby, clump-forming perennial featuring plumes (panacled racemes) of creamy white flowers reminiscent of goat's beard (Aruncus dioecus) which bloom throughout the summer atop leafy stems typically rising 3-5' (less frequently to 6') tall.Lance-shaped dark green leaves. , Halifax, West Yorkshire HX3 9XA all have suitable vigour ) will a! 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