Thank you for your question. One 12qt bag of Jiffy Organic Seed Starting Mix will fill 7.67 JS50 Peat Strips. There are 5 JS50 peat strips per TS50H thus one bag will fill 1 TS50H complete and half of another. In regards to cold stratification we recommend pre-wet the seed starting mix with warm water (mix in a bucket), add the moistened mix to the peat strip cells and then add your seeds. Place the peat strips in a zip lock freezer bag for 3-4 weeks and then remove to thaw and start growing. Hope this helps and if you need further assistance don't hesitate to reach out to our customer service team at 508.285.5800. Our best to you this season.
This mix is fine for germinating a Venus flytrap and for short term growth. For long term growth, one should add amendments that specifically promote this plant's growth. One amendment would be coarse spagnum moss.