Eucalyptus punctata, commonly known as grey gum, is a subtropical tree species native to eastern Australia where it grows in sclerophyll forests. Seeds germinate best with cold stratification for 2-4 weeks at 4°C, followed by warm conditions of 18-27°C with moderate humidity. Germination typically occurs within 14-30 days under proper conditions.
Before sowing
Store dry seeds at 3-5°C to extend viability for 3-5 years. Pre-stratify seeds for 2-4 weeks in moist medium at 4°C before sowing for better germination consistency.
Sowing
What to expect
Tips
Sow seeds on surface or lightly cover with fine vermiculite; do not bury. Keep substrate consistently moist but not waterlogged using a spray bottle. Provide bright light after germination. Maintain humidity with vented propagation domes until 80% germination achieved, then remove dome to prevent damping off. Bottom heat is not necessary and may hinder germination. Transplant only when seedlings develop 3-4 true leaves. Water from below, never from above, to prevent fungal issues. Protect young plants from direct sun with 50% shade cloth for 2-3 weeks after germination. Eucalyptus seedlings are slow-growing initially; handle with care to avoid root disturbance, as they are sensitive to transplanting.
Sources: Wikipedia, GBIF, Australian Plants Society, Kew Science, Queensland Native Seeds, Springer Nature, Wild Seed Australia, multiple seed company germination guides
