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.
Seed Treatment
Sterilize the soil by baking it at 150°C (300°F) for an hour to prevent fungal infections.
When to Sow Indoors
Start indoors at any time of year in a warm, stable environment.
Optimum Temperature: Use a heat mat to maintain a steady temperature of 21–26°C (70–79°F)
Germination Time: 21–90 days
Light Requirements for Germination
Requires light to germinate — do not cover seeds.
Use grow lights to maintain 12–16 hours of light per day.
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.
How to Sow Indoors
- Apply a copper-based fungicide (e.g., Cuprozin 35-wp) to prevent fungal infections.
- Moisten the sterilized substrate with distilled water mixed with fungicide.
- Fill a shallow tray or pots with the sterilized substrate
- Spread the tiny seeds evenly over the surface using folded paper.
- Mist lightly with water to avoid disturbing the seeds.
- Keep soil consistently moist but not soggy throughout germination.
Post-Germination Care
- Once seedlings develop true leaves, transplant carefully into individual containers.
- Space plants 30–45 cm (12–18 in) apart when moving outdoors or into larger pots.
- Tibouchina lepidota is a woody perennial shrub that can reach 2–4 m (6–13 ft) in height.
- Prefers acidic, well-drained soil and a sheltered, sunny location.
- Protect from frost. Overwinter indoors in colder climates.
Growing Tips
- Water regularly but allow the topsoil to dry slightly between waterings.
- Avoid chalky or alkaline soils.
- Prune after flowering to maintain shape and encourage bushier growth.
- Attracts pollinators like bees and butterflies.