Crataegus flava
summer haw
A deciduous shrub or small tree, with a spreading habit, thorny stems and small, lobed, glossy dark green leaves. Clusters of white flowers are produced in late spring or early summer, followed by yellowish berries in autumn
Size
Ultimate height
4–8 metresTime to ultimate height
10–20 yearsUltimate spread
4–8 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | White | Green | ||
|---|---|---|---|---|
| Summer | White | Green | ||
| Autumn | Green Yellow | Green Yellow | ||
| Winter |
Position
- Full sun
- Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H6Botanical details
- Family
- Rosaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Spreading branched
- Potentially harmful
- Seeds contain toxins so these should be removed if you are considering eating the fruit, usually grown as an ornamental shrub Pets: Fruit are ornamental - not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
- Genus
Crataegus are deciduous trees and shrubs, usually with spiny branches, lobed or toothed leaves, and clusters of creamy-white flowers followed by red or black fruits. Some have fine autumn colour
- Name status
Correct
How to grow
Cultivation
Grows well in most soils, in sun or partial shade. Will not tolerate waterlogging
Propagation
Propagate by seed or by grafting. Seeds require stratification and may take up to 18 months to germinate
Suggested planting locations and garden types
- Coastal
- Cottage and informal garden
- Wildlife gardens
- Hedging and screens
Pruning
Pests
May be susceptible to caterpillars, aphids and hawthorn button top midge
Diseases
May be susceptible to fireblight, honey fungus, crown gall, silver leaf, powdery mildews and rust diseases
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.