Liriodendron tulipifera (Tulip Tree) is a large, fast-growing magnolia family member native to eastern North America, prized for its distinctive tulip-shaped flowers and golden fall foliage. Seeds have naturally low viability (5-20%) and require extended cold stratification (60-120 days) followed by warm temperatures to germinate successfully. Germination is often slow and sporadic, requiring patience, but seedlings demonstrate vigorous growth once established.
Before sowing
No mechanical scarification required. Seeds require cold stratification followed by warm temperatures for germination
Sowing
What to expect
Tips
Soak seeds for 12-24 hours before starting cold stratification. Place moist seeds in peat moss, sand, or vermiculite in sealed plastic bags in the refrigerator for 60-120 days at 4°C. Keep substrate moist but not saturated throughout. Bring to room temperature (20-22°C) after stratification; germination occurs over 1-2 months and may be irregular. Use large containers as seedlings grow rapidly (up to 60 cm in first year). Do not discard trays prematurely. Provide bright light after germination and maintain consistent moisture.
Sources: USDA Forest Service, Ferri Seeds, TreeHelp.com, Wildflower.org, Missouri Botanical Garden, Native Plant Trust
