• Overview
    Light Needs:
    Full sun
    Watering Needs:
    Once established, needs only occasional watering.
    Average Landscape Size:
    Very slow growing to 20 ft. tall, 9 ft. wide in 10 years.
    Key Feature:
    Compact Habit
    Blooms:
    Summer
  • Detail
    Plant type:Magnolia, Tree
    Deciduous/evergreen:Evergreen
    Sunset climate zones:4 - 12, 14 - 24
    Growth habit:Columnar, Compact
    Growth rate:Slow
    Average landscape size:Very slow growing to 20 ft. tall, 9 ft. wide in 10 years.
    Foliage color:Green
    Blooms:Summer
    Flower color:White
    Patent Act:Asexual reproduction of plants protected by the Plant Patent Act is prohibited during the life of the patent.
    Design IdeasSuch a tall narrow evergreen is perfect for gaps between multistory homes and buildings. Stands beautifully against tall walls with no windows to fill in space and reduce glare on institutional structures.. Makes a potential windrow along property lines or try as a pair to flank a vehicular entry. Makes interesting contrast in both form and texture against needled evergreens and trees with seasonal spring and fall color.
    Companion PlantsThis beautiful plant works well with Marge Miller Camellia, (Camellia sasanqua 'Marge Miller'), Golden Flare Azalea, (Azalea x 'Golden Flare'), Lady in Red Hydrangea, (Hydrangea macrophylla 'Lady in Red') and Hellikki Rhododendron, (Rhododendron x 'Hellikki'). It's also traditional with Prairie Blue Eyes Top of the Line Daylily, (Hemerocallis x 'Prairie Blue Eyes') and Ruffled Velvet Siberian Iris, (Iris siberica 'Ruffled Velvet').
  • Care
    Care Information
    Follow a regular watering schedule during the first growing season to establish a deep, extensive root system. Watering can be reduced after establishment. Feed with a general purpose fertilizer before new growth begins in spring.
    Light Needs:
    Light needs: Full Sun
    Full sun
    Watering Needs:
    Water needs: Low
    Once established, needs only occasional watering.
  • History & Lore
    History:
    Alta was discovered as a chance seedling of Hasse, the most well known columnar southern magnolia variety. This magnolia species is native to North America where it is commonly called bull bay. It's range extends across the south from North Carolina to Texas and south to Florida. It was introduced to Europe in 1734 and later classified by Linnaeus into the genus he named after Pierre Magnol, 1638-1715, a botanist of Montpelier, France. By 1863 a number of garden varieties including lanceolata and the Edgmouth magnolia had been developed but proved too frost tender for their colder winters.
    Lore:
    Southern magnolia is the state flower of Louisiana and Mississippi. It grows in mixed stands of forest in areas of well drained but evenly moist soils and accessible water table. It is also considered the largest native flower in North America.