Geum (Avens) Growing Guide: Perennial Color for Borders and Containers

Geum (avens) is a genus of ~50 rhizomatous herbaceous perennials in the rose family (Rosaceae). Hardy in USDA zones 4–9, they form basal rosettes of green foliage and send up wiry, branching stems bearing cheerful, cup-shaped flowers in orange, red, yellow, and white from May to September. Long-lived, low-maintenance, and butterfly-friendly, geums excel in borders, rock gardens, and containers. The RHS Award of Garden Merit winner ‘Mrs. J. Bradshaw’ showcases rich green leaves and bright red double blooms.

Propagation

• Division (preferred): Dig established plant in spring or autumn; separate into pieces each with roots. Replant immediately. Divide every 2–3 years.
• Seeds: Sow outdoors spring/summer or indoors late winter–early spring. Less reliable than division.

Growing Conditions

• Soil: Moist, compost-enriched, well-drained; pH 5.5–7.0. Avoid winter waterlogging.
• Water: Regular moisture; water deeply after planting, then weekly in summer. Don’t overwater (root rot). Reduce in winter.
• Sun: Full sun promotes best flowering. In hot/humid climates, provide afternoon shade.
• Fertilizer: None at planting or first season. Established plants: light balanced fertilizer in early spring. Follow label.

Extending Bloom

Cut spent flower stems to the base to encourage rebloom. Some hybrids produce 5× more flowers than older varieties.

Popular Cultivars and Species

• Hybrids (G. chiloense × G. coccineum): ‘Fire Opal’ (red semi-double), ‘Lady Stratheden’ (yellow double), ‘Mrs. J. Bradshaw’ (reddish-orange double), ‘Dolly North’ (orange), ‘Red Wings’ (red semi-double), ‘Red Dragon’ (scarlet-orange double), ‘Fire Storm’ (golden yellow with red edges), ‘Flames of Passion’ (scarlet semi-double), ‘Blazing Sunset’ (tangerine double), ‘Georgenberg’ (golden orange single), ‘Double Bloody Mary’ (blood-red double), ‘Mai Tai’ (gold/pink/orange), ‘Album’ (white-pale pink), ‘Prairie Smoke’ (rose seed heads), ‘Mango Lassi’ (apricot/yellow double), ‘Totally Tangerine’ (golden/orange), ‘Eos’ (orange with chartreuse foliage).
• Wildflower Species: G. aleppicum (yellow, N. hemisphere), G. macrophyllum (yellow, N. America), G. canadense (white, N. America), G. urbanum (yellow, Europe).

Pests and Diseases

Watch for spider mites, leaf spots, mildew, root rot. Provide good air circulation, avoid wet soil, and remove affected foliage promptly.

With their long season, vivid colors, and easy nature, geums are a perennial garden essential.