4 pack x 100 Green Ash Tree seeds: Grow Your Own from Seed
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4 Pack x 100 Green Ash Seeds — Native Shade Tree
Grow Your Own Green Ash Tree Seeds (Fraxinus pennsylvanica) – Fast-Growing Native Shade Trees for Windbreaks, Wildlife Habitat & Long-Term Landscaping Nationwide
Green Ash (Fraxinus pennsylvanica) is a tough, adaptable native North American deciduous tree prized for rapid growth, excellent summer shade, golden-yellow fall color, and clusters of winged samaras that provide food for birds and small mammals. It tolerates urban conditions, poor soils, wet sites, and cold winters better than many species, making it a classic choice for windbreaks, reforestation, street trees, and large-yard shade.
Important Note on Emerald Ash Borer (EAB): Green Ash is highly susceptible to this invasive pest, which has devastated populations across most of the eastern, midwestern, and many southern states by 2026. In heavily infested areas, young trees often do not survive long without expensive treatments. This seed is best for conservation programs, low-EAB zones, or buyers committed to monitoring and protection. Always check your local extension office or state forestry department before planting.
Ideal for homeowners with space for a large tree (mature height 50–80 ft), farm windbreak plantings, native habitat restoration, and eco-conscious landowners seeking fast shade and wildlife benefits. In Chicago and the Midwest it is a traditional native species, but EAB status must be verified.
Step-by-Step Growing Guide (Seed to Young Sapling in 1–2 Years)
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Seed Prep & Stratification
Winged samaras need cold moist stratification. Mix seeds with damp sand or peat moss, seal in a bag, and refrigerate at 34–40°F for 90–120 days (some sources recommend 60 days warm + 90 days cold for better rates). Start in late fall/winter for spring sowing. - Nationwide timing tip: Stratify over winter. Chicago/Midwest/Northeast: fridge starting December–February.
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Sowing
After stratification, surface sow or plant ¼–½ inch deep in deep pots or seed beds with well-draining soil. Germinates spring at 60–70°F (can be irregular; some seeds sprout year 1, others year 2). Keep consistently moist. -
Early Care & Container Growth
Grow seedlings in deep pots for 1–2 years to develop strong roots before transplanting. Protect from deer, rodents, and extreme weather. Provide full sun to light shade.
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Planting Out & Site Selection
Full sun preferred. Space 30–50+ ft apart for shade trees or 8–15 ft in windbreak rows. Adaptable to many soil types (including moist or moderately dry). Water deeply the first 2–3 years. -
Long-Term Growth & Maintenance
Fast grower (1.5–3 ft per year once established). Prune young trees for strong structure. Monitor for EAB signs (D-shaped exit holes, canopy dieback) and consider resistant cultivars or treatments in affected regions.
Pro Tip for Every State: Start in deep pots for the first 1–2 years — this makes it easy to protect young trees and choose the perfect permanent spot later.
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Green Ash (Fraxinus pennsylvanica) is a fast-growing native North American shade tree that adapts to a wide range of conditions. This bundle provides seeds for reforestation projects, windbreaks, or large landscape plantings.
Why Grow Green Ash?
- Fast-growing—up to 60 cm per year in good conditions
- Tolerates wet soils, drought, and urban conditions
- Golden yellow fall color
- Native species supporting local ecosystems
How to Plant
- Cold stratify seeds at 2–4°C for 60–90 days
- Sow 1–2 cm deep in moist, well-drained soil
- Keep consistently moist until germination
- Transplant seedlings when 20–30 cm tall
- Space trees 10–15 meters apart at maturity
Growing Tips
Green Ash tolerates flooding and poor soils but prefers full sun. Note: Some regions have Emerald Ash Borer concerns—check local advisories before planting.
Specs
- Botanical name: Fraxinus pennsylvanica
- Mature height: 15–25 meters
- Cold stratification: 60–90 days required
- Sun: Full sun
Green Ash Tree Seeds (Fraxinus pennsylvanica) – Detailed 50-State Sowing Calendar (2026)
Green Ash seeds (winged samaras) require cold moist stratification for reliable germination. They are hardy native trees (USDA zones 3–9) but extremely susceptible to Emerald Ash Borer (EAB) in most eastern, midwestern, and many southern states. Always verify local EAB status with your state forestry department or extension office before planting.
Key rules that apply to every state:
- Cold moist stratification required: Mix samaras with damp sand or peat moss, seal in a bag, and refrigerate at 34–40°F for 90–120 days.
- Start stratification in late fall/winter so seeds are ready for spring sowing.
- After stratification, surface sow or plant ¼–½ inch deep in deep pots or seed beds. Germination can be slow and irregular (some seeds sprout year 1, others year 2).
- Grow seedlings in deep containers for 1–2 years before transplanting outdoors.
- Final planting: spring or fall, full sun, 30–50+ ft spacing for shade trees or 8–15 ft for windbreaks.
Detailed 50-State Sowing Calendar (Grouped by Region for Easy Reading)
Dates are averages based on typical 2026 conditions. Adjust ±7–14 days for your exact microclimate, elevation, or local EAB risk.
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Region / States |
Start Stratification |
Sow After Stratification (indoors or seed beds) |
Transplant Saplings Outdoors |
Notes / Example Cities |
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Northeast (ME, NH, VT, MA, RI, CT, NY, PA, NJ) |
Dec 1 – Jan 15 |
March 15 – April 20 |
April 25 – June 1 |
New York City: Stratify mid Dec → Sow early April → Transplant mid May |
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Midwest & Great Lakes (IL, IN, OH, MI, WI, MN, IA, MO, ND, SD, NE, KS) |
Dec 1 – Jan 20 |
March 20 – April 25 |
May 1 – June 10 |
Chicago, IL: Stratify mid Dec → Sow late March–early April → Transplant mid to late May |
|
Mid-Atlantic & Upper South (DE, MD, DC, VA, WV, KY, NC, TN) |
Nov 15 – Jan 10 |
March 10 – April 15 |
April 20 – May 25 |
Washington DC: Stratify early Dec → Sow mid March → Transplant late April |
|
Southeast & Gulf (SC, GA, AL, MS, AR, LA, OK) |
Nov 1 – Dec 20 |
Feb 20 – April 1 |
March 25 – May 10 |
Atlanta: Stratify mid Nov → Sow early March → Transplant mid April (check heavy EAB zones) |
|
Texas |
North: Nov 15 – Dec 20 Central/South: Oct 15 – Dec 1 |
North: March 1–April 1 Central/South: Feb 15–March 20 |
North: April 1–May 1 Central/South: March 15–April 20 |
Dallas: Stratify late Nov → Sow mid March → Transplant mid April Houston: Earlier fall stratification recommended |
|
Florida |
Oct 15 – Dec 1 |
Feb 1 – March 15 |
March 1 – April 15 |
Miami: Stratify late Oct → Sow mid Feb → Transplant early March (EAB risk high) |
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Southwest (AZ, NM, UT, NV) |
Nov 15 – Jan 15 |
March 15 – April 25 |
April 20 – May 20 |
Phoenix: Stratify Dec → Sow early April → Transplant mid April (irrigation critical) |
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Mountain & Northern West (CO, ID, MT, WY) |
Dec 1 – Feb 1 |
April 1 – May 1 |
May 10 – June 15 |
Denver: Stratify mid Dec → Sow early April → Transplant late May |
|
Pacific Northwest (WA, OR) |
Dec 1 – Jan 20 |
March 20 – April 25 |
April 25 – June 1 |
Seattle: Stratify mid Dec → Sow early April → Transplant mid May |
|
California |
Northern/Coastal: Nov 15 – Jan 1 Southern/Inland: Nov 1 – Dec 15 |
March 1 – April 15 |
March 20 – May 15 |
Los Angeles: Stratify mid Nov → Sow mid March → Transplant early April San Francisco: Similar to PNW timing |
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Alaska |
Jan 1 – Feb 15 |
April 15 – May 15 |
May 25 – June 30 |
Anchorage: Short season — stratify early Jan → Sow mid April → Transplant late May (container start recommended) |
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Hawaii |
Not typically needed (mild winters) |
Feb – March (or direct fall sowing) |
March – April |
Honolulu: Limited use; fall direct sowing possible at higher elevations |
Pro Tips for Every State
- Chicago / Midwest / Northeast gardeners: Start stratification in mid-December and sow indoors or in a cold frame in early spring. Grow in deep pots the first 1–2 years for strong root systems.
- Southern gardeners: Earlier stratification (October–November) works best; consider fall direct sowing for natural stratification where EAB pressure is lower.
- Container / balcony growers: Not ideal long-term (trees get large), but perfect for the first 1–2 years of seedling growth before permanent planting.
- EAB awareness: In infested areas, plan for monitoring and potential treatments — many states now recommend alternative native trees.
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