About
A rhizomatous perennial usually grown as an annual to provide an edible crop of tuberous roots which are mildly sweet, crisp and juicy. Large, triangular leaves are borne on stems up to 1.5m tall and small, yellow, daisy-like flowers are borne from late summer into early autumn.
About the genus
A genus of rhizomatous flowering perennials, native to South America, with bushy green foliage and daisy-like yellow flowers. Some cultivars are grown as vegetables, with the potato-like tubers tasting similar to a pear with a texture like water chestnuts
Growing conditions
SunlightFull sun
Soil typeClay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectSouth-facing, West-facing, East-facing
ExposureSheltered
UK hardinessH4
Plant details
Plant typeHerbaceous Perennial
HabitClump forming
FoliageDeciduous
Height1-1.5 metres
Spread0.5-1 metres
Time to full height1-2 years
Suggested usesHerbaceous borders, cottage gardens, cutting.
Care notes
CultivationGrows best in a fertile, moist but well drained soil in full sun with shelter from strong winds to prevent damage to the leaves. Plant outside only when the risk of frost has passed.
PruningNo pruning required
PropagationPropagate by seed, by cuttings or by division of rhizomes
Pest resistanceSlugs and snails may be troublesome
Disease resistanceMay be susceptible to cucumber mosaic virus and powdery mildews