Hawthorn — Russian
Crataegus ambigua
Hawthorn — Russian (Crataegus ambigua) is a tree suited to the Colorado Front Range, rated "Recommended" on the 2024 Front Range Tree Recommendation List. It matures to about 15–20 ft tall and 15–20 ft wide, and needs low water.
low water15–20 ft tall and 15–20 ft wideXeric / water-wiseDeer-resistant
Photos



At a glance
- Rating
- Recommended
- Botanical name
- Crataegus ambigua
- Variety / cultivar
- Russian
- Type
- Tree
- Mature size
- 15–20 ft tall and 15–20 ft wide
- Water needs
- low water
- Colorado native
- No
- Foliage
- Deciduous
- Soil
- clay, loam, sandy
- Soil pH
- 6.0–8.2
- Hail tolerance
- moderate
- Wind tolerance
- moderate
- Salt tolerance
- moderate
- Bloom color
- white
- Bloom time
- mid spring, late spring
Site factors to consider
- Critical: Insects & Diseases
Planting & establishment
Water deeply every 7–10 days through the first 2 summers. Winter water 1–2×/month October–March when soil is dry and unfrozen — winter desiccation is a top killer of newly-planted trees. Year 3: taper to 2×/month in summer, then rely on natural precipitation.
Frequently asked questions
- Is Hawthorn — Russian good for the Colorado Front Range?
- Yes. Hawthorn — Russian is included in the Front Range Plant Finder as a tree suited to Colorado's Front Range, rated "Recommended" on the 2024 Front Range Tree Recommendation List.
- How big does Hawthorn — Russian get?
- It matures to about 15–20 ft tall and 15–20 ft wide.
- How much water does Hawthorn — Russian need?
- It needs low water once established.
- Is Hawthorn — Russian native to Colorado?
- No — it is not a Colorado native, but it grows well on the Front Range.