Family: Dioscoreaceae
Genus: Dioscorea (dy-oh-SKOR-ee-uh) (Info)
Species: japonica (juh-PON-ih-kuh) (Info)
 2 members have or want this plant for trade.
Category:
Edible Fruits and Nuts
Vines and Climbers
Height:
8-10 ft. (2.4-3 m)
Spacing:
12-15 in. (30-38 cm)
Hardiness:
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
Sun Exposure:
Sun to Partial Shade
Danger:
Parts of plant are poisonous if ingested
Bloom Color:
White/Near White
Inconspicuous/none
Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Foliage:
Smooth-Textured
Shiny/Glossy-Textured
Other details:
May be a noxious weed or invasive
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Suitable for growing in containers
Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information:
Unknown - Tell us
Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From bulbils
Seed Collecting:
Properly cleaned, seed can be successfully stored
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