• Image of Oxalis triangularis 'Atropurpurea' taken at Juniper Level Botanic Gdn, NC by JLBG
    Juniper Level Botanic Gdn, NC by JLBG

Oxalis triangularis 'Atropurpurea'

Purple and Black False Shamrock

This plant is not currently for sale. This is an archive page preserved for informational use.

Shop Available Oxalis

Item #: 589

Zones: 7a to 10b, possibly colder

Dormancy: Winter

Height: 8" tall

Culture: Part Sun to Light Shade

Origin: South America

Pot Size: 3.5" pot (24 fl. oz/0.7 L)


(aka: Oxalis regnellii 'Triangularis') Ode to Oxalis: Not a weed...never seen a seed, nor will it impede any gardening deeds...indeed, so continue to read. Oxalis triangularis 'Atropurpurea' is a charming, easy-to-grow, clump-forming, winter-deciduous oxalis that has deep velvety-purple leaves edged with a wide black border topped by tiny, light pink flowers in summer...extremely cute! Purple shamrock is a dynamite plant to blend into the perennial border or woodland garden. Some of our Zone 6 customers claim to be growing purple shamrock successfully through their winters.