Malus × zumi 'Professor Sprenger'
crab apple 'Professor Sprenger'
'Professor Sprenger' is a dense, compact, rounded, deciduous tree to about 7m, with mid-green foliage turning yellow in late autumn. The very fragrant flowers open white from pink buds in mid- and late spring, and are followed by large quantities of small, round, yellow and orange fruit that hang on into winter
Synonyms
Malus 'Professor Sprenger'Malus toringo 'Professor Sprenger'
see moreMalus sieboldii 'Professor Sprenger'
Size
Ultimate height
4–8 metresTime to ultimate height
10–20 yearsUltimate spread
4–8 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Pink White | Green | ||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Yellow Green | Orange Yellow | ||
| Winter | Orange Yellow |
Position
- Full sun
- Partial shade
Aspect
North–facing or West–facing or East–facing or South–facing
Exposure
Exposed or Sheltered Hardiness
H6Botanical details
- Family
- Rosaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Spreading branched
- Potentially harmful
- Although generally edible when cooked, seeds contain toxins so these should be removed if you are considering eating the fruit, usually grown as an ornamental shrub. see the HTA guide to potentially harmful plants for further information and useful contact numbers
- Genus
Malus are small to medium-sized deciduous trees with showy flowers in spring and ornamental or edible fruit in autumn; some have good autumn foliage colour
- Name status
Accepted
How to grow
Cultivation
Grow in moderately fertile soil; will tolerate partial shade
Propagation
Propagate by chip budding in late summer. Grafting can be carried out in midwinter
Suggested planting locations and garden types
- Cottage and informal garden
- Patio and container plants
- City and courtyard gardens
- Wildlife gardens
- Flower borders and beds
Pruning
Pests
May be susceptible to aphids, including woolly aphid and rosy apple aphid, fruit tree red spider mite, codling moth and other caterpillars
Diseases
May be susceptible to apple canker, apple scab, blossom wilt, brown rot, fireblight, honey fungus and powdery mildews
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.