How to Grow Ginkgo Biloba Trees from Seed (Germination Guide)
The Ginkgo Biloba (Ginkgo biloba), also called the Maidenhair Tree, is an ancient deciduous species prized for its fan-shaped leaves, brilliant golden fall color, and exceptional longevity.
Growing Ginkgo from seed begins with a 24-hour pre-soak. Cold stratification is not strictly required, but 60 days of cold, moist stratification improves germination. The seeds can also be fall sown outdoors for spring germination.
Quick Ginkgo Biloba Germination Guide
Pre-soak: Soak seeds in water for 24 hours
Stratification: Not required, but 60 days of cold stratification improves germination
Planting depth: Sow 1–2 inches deep
Moisture: Keep consistently moist
After planting: Mulch the seed bed
Outdoor option: Fall sow for spring germination
Step 1: Soak Ginkgo Biloba Seeds for 24 Hours
Soak Ginkgo Biloba seeds in room-temperature water for 24 hours before planting or optional cold stratification.
After soaking, the seeds can either be planted directly or moved into a 60-day cold stratification period to improve germination.
Step 2: Cold Stratification Is Optional but Helpful
Ginkgo Biloba seeds do not strictly require cold stratification.
However, a 60-day cold, moist stratification period can improve germination.
Required: No
Recommended for improved germination: 60 days
Temperature: Approximately 33–40°F (1–4°C)
Medium: Damp, but not saturated
If using the cold treatment, place the soaked seeds in a lightly damp medium inside a sealed bag or lidded container and refrigerate for 60 days.
Step 3: Sow Ginkgo Biloba Seeds 1–2 Inches Deep
After soaking or completing the optional cold stratification period, the seeds are ready to plant.
- Fill a deep container or prepared seed bed with loose, well-draining soil.
- Sow each Ginkgo Biloba seed 1–2 inches deep.
- Water thoroughly after planting.
- Keep the soil consistently moist.
- Mulch the seed bed if planting outdoors.
Fall Sowing Option
Ginkgo Biloba seeds can also be sown outdoors in fall for spring germination.
Natural winter conditions provide the cold exposure that can improve germination without refrigerator stratification.
Do Ginkgo Biloba Seeds Need Cold Stratification?
Cold stratification is not required, but a 60-day cold treatment can improve germination.
This means growers can plant after the 24-hour soak, or add the cold period for a more thorough dormancy treatment.
Can Ginkgo Seeds Be Planted Outdoors in Fall?
Yes. Ginkgo seeds can be fall sown outdoors for spring germination.
Natural winter conditions provide the cold exposure that can improve germination while eliminating the need for refrigerator stratification.
What Soil Is Best for Ginkgo Seeds?
Use a loose, well-draining growing medium that can stay evenly moist without becoming saturated.
Because Ginkgo develops a strong root system, a deep container is helpful if the seedling will remain potted for any length of time.
How Should Ginkgo Seeds Be Watered?
Keep the soil consistently moist during germination and early seedling development.
Allow excess water to drain freely so the seed does not remain in saturated soil.
Ginkgo Biloba Seedling Care
Once seedlings emerge:
- Provide bright light
- Keep the soil evenly moist while young
- Avoid continuously saturated soil
- Use a deep container with good drainage
- Transplant before roots become crowded
Hardening Off Ginkgo Seedlings
Seedlings started indoors should be gradually acclimated to outdoor conditions before permanent planting.
- Wait until seedlings are established and outdoor conditions are mild.
- Begin with short periods outdoors in bright shade.
- Increase outdoor exposure gradually over 7–14 days.
- Introduce direct sunlight gradually.
- Transplant once seedlings are acclimated and water thoroughly afterward.
Where Is Ginkgo Biloba Native?
Ginkgo Biloba is native to China, including regions such as Guizhou and Zhejiang.
It has been cultivated for centuries and introduced widely, including throughout the United States.
Where Should Ginkgo Trees Be Planted?
Ginkgo is highly adaptable once established and performs well in many landscape and urban conditions.
Good growing conditions include:
- USDA Zones: approximately 3–9
- Light: Full sun to light partial shade
- Soil: Well-drained soil
- Moisture: Consistent moisture while young
- Space: Room for a large mature canopy and root system
Can You Tell Whether a Young Ginkgo Seedling Is Male or Female?
Not reliably. Young Ginkgo seedlings generally cannot be sexed by appearance.
Male and female characteristics become apparent only as the trees mature and begin producing reproductive structures.
Why Do Some Ginkgo Trees Produce Smelly Fruit?
Female Ginkgo trees produce seeds surrounded by a fleshy outer coating. When mature and fallen, that coating can develop a strong odor.
Male trees do not produce these fleshy seed coverings, which is why named male cultivars are often selected for streets and other high-traffic landscapes.
Common Ginkgo Biloba Germination Problems
Skipping the Pre-Soak
Soak Ginkgo seeds in water for the full 24 hours before planting or optional stratification.
Treating Cold Stratification as Mandatory
Cold stratification is not required, but a 60-day cold treatment can improve germination.
Planting at the Wrong Depth
Sow Ginkgo seeds approximately 1–2 inches deep.
Letting the Soil Dry Out
Keep the growing medium consistently moist during germination and early seedling development.
Overwatering
Keep the soil moist but well drained. Continuously saturated conditions can encourage rot.
Using a Shallow Container
Ginkgo develops a strong root system. Use a deep container and transplant before roots become crowded.
Assuming a Seedling Will Be Male
Seed-grown Ginkgo trees can be male or female, and their sex usually cannot be determined reliably while they are young.
Ginkgo Biloba Seed Germination FAQ
Do Ginkgo Biloba seeds need to be soaked?
Yes. Soak Ginkgo seeds in water for 24 hours.
Is soaking Ginkgo seed the same as scarification?
No. Soaking is a pre-soak, not physical scarification.
Do Ginkgo seeds need cold stratification?
No. Cold stratification is not required, but 60 days of cold stratification can improve germination.
How deep should Ginkgo seeds be planted?
Sow Ginkgo seeds approximately 1–2 inches deep, keep the soil moist, and mulch the seed bed.
Can Ginkgo seeds be planted outdoors in fall?
Yes. Fall sowing allows natural winter conditions to provide cold exposure for spring germination.
Can I tell whether my Ginkgo seedling is male or female?
Not reliably while the tree is young. Seed-grown Ginkgo trees may be either male or female.
Grow Ginkgo Biloba Trees from Seed
Soak 24 hours → Plant directly or cold stratify 60 days to improve germination → Sow 1–2 inches deep → Keep moist and mulch → Or fall sow outdoors for spring germination
Ginkgo has survived on Earth for millions of years, so it can afford to be unhurried. Give the seed its 24-hour soak, add the optional cold period for improved germination, plant it deeply enough to stay protected, and let your little living fossil get started.