Approximately 2000 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.
B and T World Seeds' reference number:
USDA average, annual, minimum temperature Zone:7
Type of plant - perennial climber
Flower: YELLOW-GREEN,PURPLE veins,campan.
Foliage: ovate-lanceo., sin., ~pubesc.
Height in meters: 3
is included in the following B and T World Seeds flowering plant categories:
1: Species in Stock at B and T
9: Alpine and Rock Garden Seed List (Hardy and Tender)
38: Indian Native and Introduced Plants
39: Climbing Plant Seeds
43: Herbaceous Border Plant Seed List
185: Plant Species whose germination is improved by Smoke
Codonopsis rotundifolia seeds will usually germinate in 7-42 days. Normally will only germinate with light so surface sow. Sow Codonopsis rotundifolia seeds on the surface of a Slighty acid seed sowing mix at about 15-20°C.