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White Hawthorn Flowers

Many hawthorn trees generate attractive white flowers, but in most instances, sharp thorns are also a feature of the tree. The white flowers give way to edible fruits, making your hawthorn trees the focus of wildlife once the fruit becomes ripe enough to devour. Hawthorn trees are members of the rose family; some possess a tolerance for cold climates, while others with white flowers do well in warmer parts of North America.

  1. USDA Zone 3

    • Washington hawthorn (Crataegus phaenopyrum) will grow in U.S. Department of Agriculture plant hardiness zone 3, the coldest zone that supports hawthorn trees. Washington hawthorn grows to 30 feet, blooms in June and has fragrant, white flowers. The flowers possess five petals, a hawthorn trait, and they result in red fruits. Thornless forms of the cockspur hawthorn (Crataegus crus-galli) handle zone 3 cold, with their white flowers blooming for up to 10 days. The flowers do not have a pleasant aroma, but do provide edible fruits by autumn.

    USDA Zone 4

    • Green hawthorn (Crataegus viridis) grows in USDA zone 4, with its white clusters of flowers blooming during late May. Green hawthorn has thorns as long as 1 1/2 inches, making it suitable as a hedge when planted in succession. Green hawthorn matures between 25 and 30 feet, with its green foliage changing to hues of purple and red in the fall. Winter King is a cultivar with attractive gray bark, but its best aspect is the bright red fruits that develop and remain on the branches well into winter. In zone 4, this makes for an appealing landscaping tool when the snow flies.

    USDA Zone 5 and 6

    • Glossy hawthorn (Crataegus nitida) lacks the extreme cold hardiness of other types of this genus, growing into USDA zones 5 and 6. Its ill-smelling white flowers bloom in May, with its pale red fruits ripe by September or October. Glossy hawthorn's leaves become orange or red in fall. Zones 5 and 6 are appropriate for scarlet hawthorn (Crataegus coccinea), a tree growing to 30 feet. It does best in full sun, as do all hawthorns, with its thorns making it a potential barrier plant to discourage trespassers. Scarlet hawthorn tolerates exposure to urban pollution, making it suitable for small yards in cities.

    USDA Zone 7 and 8

    • The white flowers of the singleseed hawthorn (Crataegus monogyna) are fleeting in nature, lasting for just a week. A native of the Pacific Northwest, this tree grows in USDA zones 7 and 8 to heights of 30 feet. The tree does very well in wet sites. Inermis Compacta is a cultivar of this tree that turns showy shades of orange and red in autumn. Singleseed hawthorns are a good fit for bird gardens, as wild birds visit the tree to eat the fruits.

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Landscaping Trees
  1. Vines With White Flowers
  2. Flowers in March
  3. White Winter Flowers
  4. Inexpensive White Winter Flowers
  5. White & Blue Flowers
  6. White Oriental Flowers
  7. White Camellia Shrubs
  8. Varieties of White Hibiscus
  9. Trees With Showy White Flowers
  10. White Blossom Trees
  11. Types of White Orchids
  12. White Four-Petaled Flowers

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