Dioscorea oppositifolia is a climbing tuberous geophyte from Indo-Malayan regions with distinct germination requirements involving cold stratification to break physiological dormancy.
Before sowing
Stratification
fria · 84 d · 5°C
Remove wings from seeds before planting
Sowing
Substrate
Cactus soil mix: 1/3 garden soil, 1/3 sand, 1/3 perlite with good drainage
Depth
1cm
Temperature
20°C
Moisture
alta
Container
Container with plastic cover for humidity retention
Day/night swing
Alternating temperatures 20/10°C or 15/6°C improve germination after cold stratification
What to expect
Step 1
Pre-treat the seed
Step 2
Sow at 1cm · 20°C
Day 14–21
Seedlings emerge (~85%)
Tips
Maintain consistent soil moisture and avoid direct sunlight on young seedlings. After germination, protect from direct sun exposure. Ventilate daily for 20 minutes to prevent fungal issues.
Sources: UnusualSeeds, GardenersHQ, Wikipedia, Kew Science, PMC research on Dioscorea species, research on Dioscorea villosa (related species)
