A rare and beautiful summer-blooming azalea with clusters of fiery red-orange flowers. Native to the southeastern U.S., it thrives in acidic, moist, well-drained soil and bright dappled shade.
For optimal germination rates, initiate seed propagation indoors under controlled conditions—unless the species exhibits a high sensitivity to root disturbance. This approach allows precise regulation of temperature, humidity, and light, improving germination consistency and seedling viability. Do not skip any recommended seed treatments, as they are essential for uniform and successful germination.
Keep soil evenly moist during germination. DO NOT LET IT DRY OUT—once seeds begin absorbing water (imbibition), drying can kill the seed embryo, and even brief dryness after sprouting can kill seedlings.
Seed Treatment (Pre-Planting Preparation)
- Cold Stratification (Required):
- Place seeds in a moist paper towel, peat moss, or vermiculite inside a sealed plastic bag.
- Refrigerate for 60 days at 33–41°F (1–5°C). This mimics winter and breaks dormancy.
- Check regularly: If seedlings sprout in the fridge, remove them gently and plant immediately.
- Optional Step: Soak seeds in lukewarm water for 12–24 hours before stratification to improve germination.
When to Sow
- Begin stratification in late fall or winter.
- Plant seeds in early spring after stratification is complete.
How to Sow
- Use an acidic, well-draining mix (peat moss + perlite + sand).
- Scatter seeds on the surface—do not cover (they need light).
- Lightly press seeds into the soil for good contact.
- Use grow lights to maintain 12–16 hours of light per day. Avoid harsh direct sun, which may dry or overheat them.
- Maintain 65–70°F (18–21°C) and high humidity.
- Keep soil consistently moist but never soggy.
Humidity: Use a humidity dome or clear cover to maintain consistent moisture during germination. Open the dome BRIEFLY once per day to allow fresh air in and reduce mold risk. Remove the dome entirely once seedlings emerge.
Germination Time: Expect sprouts in 1–3 months (after stratification).
After Germination
- Grow on in bright, indirect light.
- Transplant into individual pots when seedlings have a few sets of leaves.
- Plant outdoors in acidic, well-draining soil with dappled shade.
Harden off gradually by exposing young plants to outdoor conditions a few hours a day.
More guides at: bloomoutlet.com/seed-guides