How to grow Geum
From the Greek geno, to impart an agreeable flavour, referring to the aromatic roots of some species (Rosaceae). Avens. A genus of hardy herbaceous perennials, some of which are useful border plants, the dwarf species good rock garden plants. Several are natives of the British Isles but those valued for gardens are from Europe, South America and the Near East.
Species cultivated G. x borisii, 1 foot, vivid orange flowers, May to August, hybrid. G. bulgaricum, 1-1k feet, yellow flowers, summer. G. chiloense (syn. G. coccineum in some cataloges), 2 feet, scarlet flowers, summer. The species itself is rarely cultivated, but from it many cultivars, mostly with double flowers, have been produced. They include ‘Dolly North’, orange ; `Fire Opal’, single orange overlaid with red ; ‘Lady Stratheden’, golden-yellow ; ‘Prince of Orange’, bright orange; ‘Princess Juliana’, golden-orange ; ‘Mrs Bradshaw’, pillarbox red; ‘Red Wings’, semi-double, bright scarlet, late flowering. G. x heldreichii 9-12 inches, orange-red, summer, hybrid. G. montanum, 6-12 inches, yellow flowers, May. G. reptans, 6 inches, yellow, late summer. G. rivale, water avens, 1 foot, reddish, May and June, a native ; ‘Leonard’s Variety’, with pink and orange flowers, is a cultivar. G. triflorum, 9-12 inches, soft pink, July.
Cultivation Geums are easily grown in any good, well-drained garden soil. They appreciate sunshine, but the border kinds are tolerant of shade and damp conditions. Propagation is by division in spring or autumn or from seed sown out of doors in April or May, or in a cold frame or greenhouse in March or April.