Planting guides for Annuals, Biennials, Perennials, Shrub & Vine seeds can be found at:
https://bloomoutlet.com/seed-guides/
Please read BOTH the seed guide and the PLANT SPECIFIC sowing instructions. If you are unsure of the best way to germinate the seeds, DO NOT SOW ALL THE SEEDS. Keep some in case the germination method you use doesn’t work.
Cold stratify ALL perennials, shrub & tree seeds for at least 30 days unless the plant specific instructions indicate a longer period.
If you are not ready to plant the seeds, keep it in the refrigerator (not freezer).
BEGONIA TUBERHYBRIDA | TUBEROUS BEGONIA
Plant Specific Instructions (Read “Seed Guide” as well): Sowing Instructions (Cliff Notes version): Germinate at 75-78 °F (23-25 °C). Sow seed on a fine media with good water holding capacity and good drainage. Consistent moisture levels are important to uniform germination. Humidity levels above 95 % and a media pH between 5.5 and 6.5 are important. Do not cover seed as light is required to germinate. Higher temperatures, exceeding 80.6 °F (27 °C) will inhibit germination.
Growing on: Maintain day length in excess of 14 hours. Continued supplemental lighting will improve plant quality and shorten crop time. Growing temperatures between 68-72 °F (18-22 °C) optimize growth and flowering. Fertilize at 150-250 ppm nitrogen in a well-balanced formula.