Russian Hawthorn

Crataegusambigua

Family
Rosaceae (ro-ZAY-see-ee)
Genus
Crataegus (krah-TEE-gus)
Species
ambigua (am-big-yoo-uh)
Synonym
Sun Exposure
Sun to Partial Shade
Foliage
Deciduous
Provides Winter Interest
Height
15-20 ft. (4.7-6 m)
Spacing
15-20 ft. (4.7-6 m)
20-30 ft. (6-9 m)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Danger
Seed is poisonous if ingested
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
White/Near White
Bloom Time
Late Spring/Early Summer
Mid Summer
Other Details
Category
Herbs
Trees
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Bryant, Arkansas

Broomfield, Colorado

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Gardener's Notes:

1
positive
0
neutral
0
negative
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Broomfield, CO | September 2010 | positive

This is one of the best Hawthorne varieties for Colorado front range and far better than Washington Hawthorn, which itself is not a bad t...Read More

Featured
Fiery Searcher
(Calosoma scrutator)
Goldfinch
(Carduelis carduelis)
Featured
Fiery Searcher
(Calosoma scrutator)
Goldfinch
(Carduelis carduelis)