EREMURUS X ISABELLINUS (Efro Hybrids)
1. Seed Preparation
- Cold Stratification: Store seeds in a moist paper towel in the refrigerator for 4–6 weeks.
- Check weekly: If seedlings sprout in the fridge, remove them gently and plant immediately.
- Soaking: Soak the seeds in warm water for 12–24 hours before sowing to soften the seed coat.
2. When to Sow
- Best time: Autumn (September–November) or early spring (March–April).
- Seeds require a cold period to break dormancy.
3. Soil & Growing Medium
- Use well-draining, sandy, or loamy soil.
- A mix of 50% compost, 25% sand, and 25% perlite works well.
4. Sowing Depth & Spacing
- Depth: 3–5 mm (1/8 inch)—lightly cover with soil.
- Spacing: 5–10 cm (2–4 inches) apart in seed trays or pots.
5. Temperature & Light
- Ideal germination temperature: 15–20°C (59–68°F).
- Provide bright, indirect light.
- Germination can take 30–90 days (after stratification).
6. Watering & Care
- Keep soil moist but not soggy—avoid overwatering.
- Once seedlings emerge, reduce watering to prevent rot.
- Transplant after 1–2 years when plants are strong enough.
7. Transplanting & Growth
- Move seedlings to the garden after the last frost.
- Choose a full sun location with well-draining soil.
- Eremurus prefers dry summers and cold winters.
- Expect flowers in 3–5 years.
Growing Eremurus isabellinus from seed is slow, but with patience, you’ll be rewarded with stunning, towering flower spikes!