Seed Treatment (Stratification)
- Mix the seeds with a small amount of moist sand and place them in a sealed plastic bag.
- Refrigerate at 35–40°F (2–5°C) for 4-6 weeks before sowing.
- Check weekly: If seedlings sprout in the fridge, remove them gently and plant immediately.
- After stratification, allow the seeds to come to room temperature before planting.
Planting Instructions
- Sow Indoors (Best Method)
- Use a well-draining seed-starting mix with added perlite or sand.
- Do not cover the seeds—they need light to germinate. Just press them gently into the soil.
- Keep soil moist but not soggy by misting gently.
- Maintain a temperature of 60–65°F (15–18°C) for germination.
- Seeds germinate in 30-60 days but may take longer if conditions are not ideal.
- Direct Sowing (Optional)
- Best sown in fall or early spring after a period of natural cold stratification.
- Choose a partially shaded area with well-draining, moist but not wet soil.
- Lightly press seeds into the surface without covering them.
- Water gently to keep soil moist during germination.
Post-Germination Care
- Once seedlings appear, provide bright, indirect light (or artificial grow lights).
- Keep soil evenly moist but avoid overwatering.
- When seedlings have 2–3 true leaves, transplant carefully into larger pots or outdoors.
- Ideal growing conditions: cool temperatures, partial shade, and well-draining, moist soil.
- Mature plants prefer rock gardens, borders, or containers and may bloom the following year.
By following these steps, you can successfully grow Saxifraga arendsii and enjoy its delicate flowers!