General Plant Information (Edit)
Plant Habit: Herb/Forb
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Wet Mesic
Mesic
Soil pH Preferences: Strongly acid (5.1 – 5.5)
Moderately acid (5.6 – 6.0)
Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 7a -17.8 °C (0 °F) to -15 °C (5 °F)
Plant Height: 30 inches (75 cm)
Plant Spread: Up to 42 inches (105 cm), usually smaller
Fruit: Other: Explosively dehiscent
Fruiting Time: Summer
Fall
Flowers: Showy
Inconspicuous
Flower Color: Yellow
Bloom Size: Under 1"
1"-2"
Flower Time: Summer
Fall
Other: Blooms intermittently throughout the year; some oxalis will bloom all year if given enough light
Underground structures: Tuber
Uses: Groundcover
Vegetable
Salad greens
Cooked greens
Dried Flower
Will Naturalize
Suitable as Annual
Edible Parts: Stem
Leaves
Roots
Flowers
Eating Methods: Raw
Cooked
Wildlife Attractant: Bees
Birds
Other Beneficial Insects: Hoverflies, native bees, wasps
Resistances: Deer Resistant
Flood Resistant
Humidity tolerant
Toxicity: Other: All plants containing oxalic acid can be toxic to humans if enough is ingested.
Propagation: Seeds: Provide light
Needs specific temperature: 20C day, 10C night
Days to germinate: ~7 to 90
Depth to plant seed: Pressed into surface or barely covered
Start indoors
Can handle transplanting
Will not come true from seed
Other info: No dormancy, relatively short seed life; varieties with mid-styled flowers are poorly self-fertile, while other flower types are self-incompatible
Propagation: Other methods: Cuttings: Stem
Cuttings: Tip
Division
Offsets
Bulbs
Other: bulblets, tubers
Pollinators: Hoverflies
Wasps
Flies
Bumblebees
Bees
Various insects
Miscellaneous: Tolerates poor soil
Monoecious
Goes Dormant

Image
Common names
  • Oca
  • Wood-Sorrel
  • Cubio
  • New Zealand Yam

Photo Gallery

Date: 2010-03-25

Photo courtesy of: Markus Leupold-Lowenthal

Date: 2013-06-15
Location: Ecuador
Date: 2014-07-05
Photo courtesy of: Dick Culbert
Location: WA, USA
Date: 2013-10-20
Oca 'Sunset', entire plant with tubers (early pull, so tubers are
Location: RHS Harlow Carr, Yorkshire, UK
Date: 2019-06-30
Location: Peru
Photo courtesy of: Laurenjm
Location: RHS Harlow Carr, Yorkshire, UK
Date: 2020-08-22
Location: Peru
Photo courtesy of: leguyb

Date: 2004-12-31
Photo: fr:Utilisateur:Jonathaneo

Photo courtesy of Annie's Annuals and Perennials
  • Uploaded by Joy

Photo courtesy of Annie's Annuals and Perennials
  • Uploaded by Joy
Discussion Threads about this plant
Thread Title Last Reply Replies
Oxalis tuberosa by valleylynn Dec 18, 2014 9:03 AM 1

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