Magnolia grandiflora 'FERRUGINEA'

Magnolia grandiflora
Magnolia grandiflora 'FERRUGINEA'
southern magnolia, bull bay
SIZE/TYPE taller shrub
LEAVES evergreen broadleaf
BLOOMING TIME June - September
LOCATION full sun
USDA zone (lowest) 6   (down to -23°C)
FOR ZONE 5+6 Code of winter protection zone 5+6
FOR ZONE 7 Code of winter protection zone 7
BELONGS TO CATEGORIES Evergreen broadleaf
Summer blooms
náhled fotonáhled fotonáhled foto
Evergreen (southern) magnolias are flowering queens among ornamental trees. We choose the hardiest and most beautiful varieties that can live happily in zones 6 and up. Ferruginea is an American variety from 1804. It has undergone tests in several climate zones and has proved sufficient hardiness and good performance in Central European climate.

Ferruginea is a southern magnolia variety with large, 24-26 cm across, creamy white, lotus-like flowers whose fragrance attracts not only bees and other insects, but also most perfume producers and every passer-by, especially in late afternoon and early evening when it releases its rich, sweet and citrus fragrance several meters around. Each flower opens for one or two days only but is followed by another so the whole plant produces flowers from June until September. The older and stronger the plant the more flowers appear in continuity.

Its evergreen leaves are large, too, 15-18 cm long, and 8-10 cm wide. They are leathery, dark green and very glossy, covered with sandy brown, suede-like indumentum underneath which protects them against drying winds. Young leaves have reddish brown hues. It naturally grows into a large, oval to rounded shrub, or it can be trained into a mid-sized tree with a rounded canopy. It needs no pruning to become bushy as it naturally branches evenly, moreover, pruning will remove flower buds which appear at the tips of mature twigs (usually from the previous year). Still if you need to cut for whatever reason do so in April before it emerges (in May).

Southern magnolia is very hungry. It needs acidic, fertile, reasonably drained but not purely sandy soil. Clay in lower parts is beneficial. We strongly suggest using mycorrhizal fungi for its roots, they work miracles especially for large plants whom they help establish without any signs of defect. Now bring your attention to fertilizing, most importantly during its first three or four years after transplanting it needs regular feeding in order to keep all its foliage and to produce flowers freely. Use any sort of fertilizer for ericaceous plants and apply it according to instructions from May until late July. Keep the plant’s roots constantly moist during this period and don’t forget to water it also in winter when the ground is not frozen. Then it will fully establish and will not suffer from summer droughts and will not need extra feeding as its roots will be deep enough to find their own food. Choose only sunny locations, possibly with winter shade that may be welcome in areas with long-lasting winters. Ferruginea has been tested and so far proved hardy to about -25°C (USDA zone 5b-6).

Last update 29-09-2017
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Magnolia grandiflora height 125-150 cm, width 50-80 cm
Magnolia grandiflora height 125-150 cm, width 50-80 cm

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Magnolia grandiflora
Magnolia grandiflora
Magnolia grandiflora (
  • STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
  • DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
  • EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
  • STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
  • HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
  • SHRUB - a woody plant with branches growing bushy from the ground level.
  • HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
  • FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
  • GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.
LARGE PLANTS over 150 cmspecimens, screening and hedging shrubs

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