Dietes iridioides / Cape Iris / Seeds

(Code: KB_020)
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Dietes iridioides / Cape Iris / Seeds

A beautiful iris-like plant from Southern Africa with dark green sword-like leaves and spikes bearing showy milky white flowers with yellow central markings.  Lots of flowers through late spring into summer. 

Great plant for the bed or border, growing to about 60cm and staying evergreen though the winter. Protect from frosts greater than -5C. Prefers dappled shade and well drained soils.  Will tolerate poor soils. Low maintenance once established.


Pack of 15 seeds.  Sow in spring or autumn (needs cool temperatures). Sowing instructions and a colour photo are printed on the packet.  

Poisonous if ingested.  

See how your seeds are packed.

Hardiness Hardy to half-hardy evergreen perennial (forms rhizomes)
Flowers Late spring into summer
Height 60cm
Spread 30 - 50cm
Conditions  Sun to part shade and well-drained soil.

Sow the seeds in spring or autumn (need cooler temperatures) in moist seed compost.  Cover lightly with compost and keep at 15 - 20C. Germination takes 1-3 months, sometimes longer.  Pot on the young seedlings as once they are big enough to handle.  You can try to speed up germination by soaking seeds in warm water for 2 days or sanding lightly with sand paper before sowing. 

Grow Flowering starts in the second or third season.  In colder areas (eg frosts greater than -7C), move plants indoors in winter. This is an evergreen plant, so do not cut back the leaves as you would with some irises.  Mature plants can be divided after flowering.