Ziziphora clinopodioides subsp. bungeana
Also published as Ziziphora bungeana. You are in the right place.
This source reports two treatments. Both are shown.
Protocol 1
DerivedN. C. Deno, 1993Difficulty Low
Start around March 15, 2027 for a May 3 last frost.
Sow and cover
Temperature: 70°F 21°C Light: either
No stated waiting before sowing. Germination time not stated; 21 days assumed.
83% germination.
83% at 70. First up on the second day, then half of what is left every day. Light made no difference.
Protocol 2
DerivedN. C. Deno, 1993Difficulty High
Start around March 15, 2027 for a May 3 last frost.
Cold moist stratification
Temperature: 40°F 4°C Light: either
16% here.
Warm moist stratification
Temperature: 70°F 21°C
A further 1%.
No stated waiting before sowing. Germination time not stated; 21 days assumed.
16% germination.
16% in the cold and 1% after it. A fifth of what sowing warm gives.
This source doesn't state how long.