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Magnolia grandiflora 'Alta' (Bull bay 'Alta')
1 hour care
per year
per year
6m
Max height
Max height
3m
Max spread
Max spread
20-50 Years
To maturity
To maturity
Plant details
Botanical name
Magnolia grandiflora 'Alta'
Other names
Bull bay 'Alta', Southern magnolia 'Alta', Large-flowered magnolia 'Alta', Laurel magnolia 'Alta', Magnolia grandiflora 'Tmgh'
Genus
Magnolia Magnolia
Variety or Cultivar
'Alta' _ 'Alta' is a columnar, evergreen tree with ovate to elliptic, glossy, dark green leaves, reddish-brown beneath, and large, fragrant, cup-shaped, creamy-white flowers in summer.
Magnolia grandiflora 'Alta' is: Evergreen
Fragrance
Flowers are fragrant.
Habit
Broadly columnar
Flower
White, Cream in Summer
Foliage
Dark-green in All seasons
How to care
Watch out for
Specific pests
Capsid bug , Horse chestnut scale , Snails Capsid bug , Horse chestnut scale , Snails
Coral spot , Honey fungus Coral spot , Honey fungus
General care
Pruning
Pruning group 1 in spring. Pruning group 13 if wall-trained.
Propagation methods
Budding, Grafting, Layering, Semi-hardwood cuttings
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Where to grow
Magnolia grandiflora 'Alta' (Bull bay 'Alta') will reach a height of 6m and a spread of 3m after 20-50 Years.
Suggested uses
Low Maintenance, Cottage/Informal, City, Architectural, Wallside and trellises
Cultivation
Grow in moist but well-drained, preferably neutral to acid soil in sun or partial shade. Tolerates dry, alkaline soil. Dislikes pollution. Can be wall-trained.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Moist but well-drained, Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade, Full Sun
Aspect
South, East, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4), Tender in frost (H3)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Magnolia grandiflora 'Alta'
Other names
Bull bay 'Alta', Southern magnolia 'Alta', Large-flowered magnolia 'Alta', Laurel magnolia 'Alta', Magnolia grandiflora 'Tmgh'
Genus
Magnolia Magnolia
Variety or Cultivar
'Alta' _ 'Alta' is a columnar, evergreen tree with ovate to elliptic, glossy, dark green leaves, reddish-brown beneath, and large, fragrant, cup-shaped, creamy-white flowers in summer.
Native to
Southeastern United States
Foliage
Evergreen
Fragrance
Flowers are fragrant.
Habit
Broadly columnar
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Colour
Flower
White, Cream in Summer
Foliage
Dark-green in All seasons
How to care
Watch out for
Specific pests
Capsid bug , Horse chestnut scale , Snails
Specific diseases
General care
Pruning
Pruning group 1 in spring. Pruning group 13 if wall-trained.
Propagation methods
Budding, Grafting, Layering, Semi-hardwood cuttings
Monthly care advice
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Where to grow
Magnolia grandiflora 'Alta' (Bull bay 'Alta') will reach a height of 6m and a spread of 3m after 20-50 Years.
Suggested uses
Low Maintenance, Cottage/Informal, City, Architectural, Wallside and trellises
Cultivation
Grow in moist but well-drained, preferably neutral to acid soil in sun or partial shade. Tolerates dry, alkaline soil. Dislikes pollution. Can be wall-trained.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Moist but well-drained, Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade, Full Sun
Aspect
South, East, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4), Tender in frost (H3)
USDA zones
Zone 9, Zone 8, Zone 7
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Chalky, Clay, Loamy, Sandy (will tolerate most soil types) | Tell us... |
| Soil drainage: | Moist but well-drained, Well-drained | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Partial Shade, Full Sun | Tell us... |
| Aspect: | South, East, West | Tell us... |
| Exposure: | Sheltered | Tell us... |
| Hardiness: | Hardy (H4), Tender in frost (H3) | Tell us... |
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