Growing Geums

Geums are evergreen, or semi-evergreen hardy perennials. They come in a wide range of colours and shapes, some suiting full sun and others coping in shade. However, these are perennials that need regular care.

They form clumps which need dividing regularly, after flowering. This prevents them from becoming woody and deteriorating. If planted amidst rampant self-seeders, such as forget-me-nots, a cleared circle round the base of the geum plant prevents it from being stifled. Some spread more than others. G. rivale cultivars spread, whereas G. chiloense stay in neat, tight clumps. They grow in acidic or limey moisture-retentive soil that is annually mulched with compost. The amount of sun or shade is taken into consideration. G. rivale cultivars thrive in shade and moist soil, G. chiloense are sun lovers, while G. coccineum enjoy partial shade, scorching in full sun. There is no clear evidence that dead-heading prolongs the flowering season. Attractive seedheads can be left on the plant but will cross-pollinate.