Dioscorea communis
Black Bryony · Black Bindweed
Also published as Tamus communis. You are in the right place.
About the plant
What it is and where it grows — not part of any germination protocol.
- Note
- Germination is hypogeal: the radicle first, and the leaf only later.
Toxicity is noted only where a source states it. No note here is not a finding of safety.
Source: Seed Germination Theory and Practice, 2nd ed. — N. C. Deno.
Protocol
DerivedN. C. Deno, 1993Difficulty High
Warm moist stratification
Duration: 90 daysTemperature: 70°F 21°C
Deno gives no length for this period; three months is his standard cycle.
Cold moist stratification
Duration: 90 daysTemperature: 40°F 4°C
Two of nine came up here, in the 11th week. Deno gives no length for this period; three months is his standard cycle.
Warm moist stratification
Temperature: 70°F 21°C
Two more of nine, on the sixth day.
about 6 months from start to sowing. Germination time not stated; 21 days assumed.
22% germination.
Two seeds of nine in the cold and two more after the move -- four of nine in all.
This source doesn't state how long.