Amarillo Oca Tubers – Oxalis tuberosum
The Amarillo Oca tubers (Oxalis tuberosum) are golden yellow. Oca is a traditional food native to the Andes region of South America. These Oca have traditionally been grown by Andean people of South America. Oca (Oxalis tuberosum) is grown with Potatoes, Mashua, Ulluco and other edible plants in a poly-culture.
A traditional food native to the Andes region of South America. These Oca were re-introduced by Dr. Alan Kapuler, PhD, public domain plant breeder, of Peace Seeds in Corvallis. These are a pure deep yellow, no contrasting color to the eyes. Lumpy, rounded tubers blush orange with light exposure. These are round to cylindrical tubers 1–6″ long. Sprawling succulent stems. Grow similar to potatoes. Traditionally the tubers are exposed to sun and cold for several days after harvest to increase sweetness. Light exposure also enriches the vivid colors.
Latin Name: Oxalis tuberosum
Site and Soil: Amarillo Oca Tubers do well in full sun to partial shade in well drained soil, loose soil pH 5.3-7.8.
Bearing Age: Perennial tubers, can be harvested annually.
Size at Maturity: 2-3 feet tall, sprawling
Ripening Time: November-January
USDA Zone: 5-9