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History: Home >
Commonly known as (Polygonum) - Knotweed
Genus of about 150 annuals and perennials. They may be evergreen, semi-evergreen or deciduous and many spread by stolons leading to a spreading habit which can be invasive. This habit and their commonly used name knotweed can give cause for concern but used wisely they are worthy performers. They are found in a variety of habitats worldwide and most have long-lasting spikes of flowers followed by distinctive 3-angled or ovoid fruits.
Good to know - poker type flowers. Some have attractive autumn colour. Some are invasive. Wildlife plant - insects.
Pests & Diseases - generally trouble-free.
Place of Origin - various habitats around the world.
Semi-evergreen - Keeps some of its foliage all year, and will drop some leaves as well.
Fertile moist well-drained soil - will tolerate any moist soil
May cause skin allergy or irritant - Having skin or eye contact with these plants could result in an allergic reaction, burning or rash.
Flower Colour - Red
Shades of pink - All shades of pink through to Carmine (red)