Magnolia grandiflora Alta™ (TMGH)

Description:
Magnolia grandiflora Alta™ (TMGH), commonly known as Alta™ Southern Magnolia, is an evergreen tree prized for its elegant, upright form and dense, glossy foliage. Unlike the broader habit typical of Southern Magnolias, Alta™ maintains a narrow, columnar shape, making it ideal for spaces where a more contained growth is desired. Its year-round foliage and fragrant summer flowers make it a standout in landscapes.

Flowers:
In summer, Alta™ produces large, creamy white, cup-shaped flowers with a delightful lemon fragrance. These blooms are borne at the branch tips, adding both visual beauty and a sweet scent to the garden.

Foliage:
The tree features lustrous, dark green leaves with a contrasting rusty-brown underside. The smaller, more refined foliage gives the tree a formal and elegant texture, perfect for adding structure to garden designs.

Fruit:
After flowering, Alta™ may produce small, cone-like seed pods that contain bright red seeds. These are primarily ornamental and add a subtle touch of interest in autumn.

Form and Size:
This cultivar has a dense, upright growth habit with a narrow, conical form. It typically reaches a height of 9 meters and a width of about 3 to 4 meters, making it perfect for narrow spaces, privacy screens, and as a specimen tree in gardens and courtyards.

Growing Conditions:
Alta™ thrives in full sun to partial shade and prefers moist, well-draining, slightly acidic soil. It is adaptable to a variety of soil types and is moderately drought-tolerant once established. Regular watering during dry periods is recommended to ensure optimal growth and flowering.

Uses:
This tree is ideal for group plantings, hedges, and screens, or as a striking specimen tree in both residential and commercial landscapes. Its narrow form makes it suitable for tight spaces, while its lush foliage provides excellent privacy.

Maintenance:
This variety is relatively low-maintenance. Pruning is generally not necessary but can be done after flowering to maintain its shape if needed. Mulching helps retain soil moisture and protect the roots. Fertilize in early spring with a slow-release, acid-loving fertilizer for healthy growth.

Notes:
Alta™ Southern Magnolia is valued for its upright form, dense foliage, and fragrant blooms. Its tolerance of urban conditions and adaptability to various soil types make it an excellent choice for a wide range of landscapes.

Companion Plants:
Pairs well with other evergreen shrubs such as Camellia, Rhododendron, and Azalea. It also complements ground covers like Liriope and Hosta, adding texture and layers to garden beds.

Common Name: Alta™ Southern Magnolia
Botanical Name: Magnolia grandiflora Alta™ (TMGH)
Family: Magnoliaceae
Origin: Southeastern United States

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