Thornless Cockspur Hawthorn
Crataegus crus-galli var. inermis
Thornless Cockspur Hawthorn is a tough, adaptable ornamental tree that offers the glossy foliage, white spring flowers, and persistent red fruit of Cockspur Hawthorn without the thorns, making it a safer choice near walkways, patios, and play areas.
Quick specifications
- Mature Height
- 20–25 ft
- Mature Spread
- 20–25 ft
- Growth Rate
- Slow to moderate
- Sun
- Full sun to light shade
- Water
- Moderate; drought-tolerant once established
- Hardiness
- USDA Zone 4–7
- Genus
- Hawthorn (Crataegus)
Identification

In the field
General hawthorn reference image from the GWTC photo library; not a verified photo of Thornless Cockspur Hawthorn.
Overview
Thornless Cockspur Hawthorn is a spineless selection of the native Cockspur Hawthorn, retaining the species' glossy, dark green summer foliage, white spring flowers, and long-lasting red fruit while eliminating the sharp thorns that make the straight species difficult to maintain near foot traffic.
It is one of the toughest small ornamental trees available for Front Range landscapes, tolerating heat, wind, poor soil, and urban planting conditions with minimal care once established.
Key Characteristics
- Mature Size: 20–25 ft tall | 20–25 ft wide
- Growth Rate: Slow to moderate
- Form: Broad, horizontal-branching, rounded canopy
- Foliage: Glossy dark green, good fall color
- Flower Color: White, spring bloom
- Fruit: Small red pome, persistent into winter
- Thorns: None — safe near walkways and play areas
Colorado Growing Conditions
Extremely tough and adaptable to Front Range heat, wind, and poor soils
Thornless habit makes it a practical choice near patios, walkways, and driveways
Persistent fruit provides winter interest and wildlife food
Tolerates alkaline clay soils common in Douglas County
Planting Considerations
- Plant in full sun to light shade in well-drained soil
- Water regularly during establishment; reduce frequency once mature
- Horizontal branching habit benefits from early structural pruning for clearance over walkways
- Good option near hardscape given its thornless habit
Common Problems
- Cedar-hawthorn rust and fire blight possible in wet spring conditions
- Occasional leaf spot in humid years
- Fruit can create minor litter near hardscape
Best Use Scenarios
- Walkways, patios, and play areas where thorns would be a hazard
- Small residential and courtyard landscapes
- Street tree and boulevard plantings
- Wildlife and bird-friendly plantings
Related Services
Related Trees
Related Resources
When you want a professional opinion
The Root exists to help you understand your landscape. When a tree needs hands-on evaluation, a Great Western arborist can look at it in person.
