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SEEDS - Leonotis nepetifolia
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Leonotis nepetifolia Seed Germination Guide
Overview
- Leonotis nepetifolia (lion’s ear, klip dagga) is a fast-growing annual/short-lived perennial valued for tubular orange flowers that attract pollinators. Seeds are easy to start from seed with a few simple steps for fast, reliable germination.
Supplies
- Fresh seeds
- Fast-draining seed-starting mix
- Trays or small pots with drainage
- Clear dome or plastic cover (optional)
- Spray bottle or fine mister
- Heat mat (optional; speeds germination)
Seed Preparation
- No strict dormancy: seeds generally do not require scarification or stratification.
- Optional pre-soak: soak seeds in lukewarm water for 4–12 hours to soften seed coat and speed germination (not necessary but helpful).
Sowing Methods (choose one)
- Indoors (recommended for earlier blooms)
- Timing: sow 6–8 weeks before last expected frost.
- Depth: press seeds onto surface or cover lightly with 1/8" (3 mm) of seed-starting mix—very shallow, as light aids germination.
- Temperature: maintain soil temperature 70–78°F (21–26°C); use a heat mat for best results.
- Moisture: keep medium evenly moist but not soggy; mist surface to avoid displacing seeds.
- Light: provide bright light or grow lights immediately—seeds are light-responsive.
- Germination time: typically 7–21 days.
- Direct-sow outdoors
- Timing: sow after last frost when soil has warmed and nighttime temps are consistently above ~55°F (13°C).
- Site: well-draining soil in full sun.
- Depth: scatter seeds and press lightly into soil or cover with a very thin layer (≤1/8").
- Spacing: thin or transplant to 12–18" (30–45 cm) between plants once established.
- Germination time: 7–21 days, depending on temperature and moisture.
Seedling Care & Potting On
- Light: seedlings need bright light to avoid legginess—use grow lights if indoors.
- Water: keep evenly moist; avoid waterlogged conditions.
- First true leaves: transplant to individual pots when seedlings show 2–3 true leaves.
- Harden off: acclimate seedlings outdoors 7–10 days before transplanting to garden.
Transplanting & Spacing
- Transplant outdoors after last frost and once seedlings are hardened off.
- Final spacing: 12–18" (30–45 cm) between plants for good air flow and bloom production.
- Soil: well-draining, moderately fertile; tolerates poorer soils but flowers best with moderate fertility.
Troubleshooting
- Poor germination: check seed freshness, temperature (too cold slows germination), and consistent moisture.
- Damping-off: avoid overwatering, use clean mix, provide good airflow, and avoid overcrowding.
- Leggy seedlings: increase light intensity and reduce distance to light source.
Quick checklist
- Sow shallow (surface or ≤1/8" cover).
- Keep soil 70–78°F (21–26°C) and evenly moist.
- Provide bright light from day one.
- Germination: 7–21 days.
- Transplant at 12–18" spacing after hardening off.