Amazon.com : Big Pack – (100) Bitter Melon Seeds – Mara …

2. I had a nearly 100% germination rate when I rolled these in damp paper towels and put in a plastic baggie-about 10-12 days to germinate. Then I carefully planted the seedlings in seed starter trays. 3. Another nearly 100% germination rate is to sprout these on damp LECA pebbles. Germination rate outside in heat was 7 days!

https://www.amazon.com/BIG-PACK-Momordica-charantia-MySeeds-Co/dp/B06XPXGG8F