Magnolia obovata
Japanese white bark magnolia
Also known as Magnolia hypoleuca
- Height × spread
- 18m × 10m
- Position
- Tolerates full sun, likes part shade, tolerates light shade
- Hardiness
- Cold to -15C (RHS H5)
- Flowers
- Summer
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This is a substantial tree that can reach up to 18m (60ft) height in Britain and Ireland, although in the forests of Hokkaido, Japan, heights of up to 30m (100ft) have been reported. It has a pyramidal shape and large, oblong leaves held in whorls at the end of the shoots. The flowers which come in June and July are large and richly fragrant. They make deep cups, coloured a creamy-ivory with a protruding cone of scarlet stamens. There are red, cone-shaped fruits afterwards, up to 20cm (8in) long. Regrettably, with maturity, the fruits cease to be scarlet and turn brown.
- Flower colour
- White
- Foliage colour
- Green
- Fruit colour
- Red
- Variegated
- No
- Scent
- Yes, fruity-melon
- Shape
- Cone
- Height
- 18m
- Spread
- 10m
- Height in 10 years
- 5m
- Spread in 10 years
- 3m
- Season of interest
- Summer, Autumn
- Flowers in
- Summer
- Evergreen
- Deciduous
- Garden style
- Scented garden
- Sun or shade
- Tolerates full sun, likes part shade, tolerates light shade
- Soil type
- Clay, Loam (normal)
- Soil pH
- Acid (ericaceous), Neutral
- Drainage
- Moisture retentive soil, Well drained soil
- Hardiness
- Cold to -15C (RHS H5)
- Borders & containers
- Borders
- Use for
- Architectural, Sensory garden (tactile)
- Deer
- Protect from deer when young if in vulnerable area
- Hazards
- No
Spring
Spring - late · Outdoors
Feed young plants with slow release fertiliser
Spread a slow release fertiliser around the base of the plant to the edge of the foliage spread, so that it can feed the roots. It is helpful for this to be applied for several years.
This is a simple way to provide a nutrient boost until the plant becomes well established.
Spring-Autumn · Outdoors
Water to keep the soil moist
For best results, this plant needs soil that is always moist. Water deeply and regularly as soon as soil appears dry. Even for established plants in the ground, a dry week can cause problems with some soils. Check plants in pots more often, especially in hot weather. Or install an automatic irrigation system which will do the hard work for you, even when you are away on holiday.
Without regular watering some plants never fully regain their beauty.
Spring-Autumn · Planting
Prune to maintain young trees
While it is still possible to safely reach up and into the tree, remove dead or damaged foliage, and crossing or misplaced branches in early spring while the plant is still dormant.
Planting & general
Outdoors
Water with rain water
This plant needs rain water or soft water (the minerals in alkaline or "hard" water are harmful). This is especially important for plants in pots.
Outdoor planting · Planting
Add root growth stimulant to the planting hole
Mycorrhizal fungi helps roots establish quickly, so they absorb water and nutrients more efficiently. It comes as a powder, granule or gel. Add to the planting hole or container, and to the plant's rootball before planting in the hole. For "bareroot" plants use a gel.
Planting
Protect & support young trees
Attach a newly planted tree or tall shrub over 1m to a tree stake to give support and prevent windrock. Use a tree guard to stop tree bark being eaten by animals, especially in areas with deer - removing bark injures a tree and in worst case can kill it.
Compost · Planting
Ericaceous compost
This plant requires acidic (ericaceous) soil. Where the soil is not acidic, or when planting in pots, use an ericaceous compost.
Found in
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