The Spectacular Full Grown Butterfly Magnolia Tree

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Robby

The full grown butterfly magnolia tree (Magnolia x ‘Butterflies’) is truly one of the most breathtaking flowering trees you can grow in your garden. When mature, it puts on an incredible floral display in spring that will make your landscape come alive. In this article, we’ll explore everything you need to know about this magnificent tree.

An Overview of the Butterfly Magnolia

The butterfly magnolia is a deciduous hybrid magnolia formed by crossing Magnolia acuminata (the cucumber tree) and Magnolia denudata (the Yulan magnolia). It was bred to showcase the best qualities of both parent species.

This ornamental tree is prized for its bright yellow, fragrant flowers that emerge in early spring before the leaves. The flowers resemble a flock of giant butterflies hovering among the bare branches, which explains its common name.

In fall the dark green foliage turns lovely shades of yellow and gold extending seasonal interest. With its graceful form and spectacular blooms, the butterfly magnolia makes a stunning focal point in any landscape.

Mature Size and Growth Habit

When fully mature, the butterfly magnolia reaches an ultimate height of 20-30 feet with a spread of 15-20 feet wide. It has a pyramidal to oval growth habit with strongly upright branching.

Lower branches can be removed to reveal a single dominant trunk. Or it can be grown as a multi-stemmed shrubby form. Either way, it develops into a statuesque small tree that commands attention.

This is a fast growing magnolia adding around 1-2 feet of growth per year once established. Proper pruning is important for maintaining its form and vigor.

The Magnificent Spring Flower Display

Without a doubt, the spectacular spring bloom is the butterfly magnolia’s claim to fame. It is completely coated in large, fragrant flowers that stop traffic when in full bloom.

Each lemon-scented flower features 10-16 tepals (petal-like structures) and resembles a giant, upright tulip in shape. They emerge a rich golden yellow before the leaves unfurl.

Flowering occurs in mid to late spring for about 2-3 weeks A mature tree can produce hundreds of blooms simultaneously, creating clouds of bright yellow flowers hovering among the branches

The blooms provide a bold pop of color against the gray bark, especially with morning or afternoon sun illuminating them. Truly a sight to behold in the spring landscape!

Ideal Growing Conditions

The butterfly magnolia is quite adaptable and vigorous when grown in its preferred conditions:

  • Sunlight: Thrives in full sun to partial shade. Flowers best in full sun.

  • Soil: Rich, moist, slightly acidic soil. Avoid soggy or poorly drained sites.

  • Water: Consistent irrigation needed while establishing. Drought tolerant once mature.

  • Hardiness: USDA zones 5-9. Protect flower buds from late frosts.

  • Environment: Shelter from harsh winds. Hot humid summers and pollution are tolerated.

Proper siting and care will be rewarded with vigorous growth and the most prolific flowering.

Size Management and Pruning

Pruning is important for controlling size and maintaining a nice shape on butterfly magnolias. Here are some tips:

  • Prune soon after flowering completes in spring to avoid removing next year’s flower buds.

  • Remove inward growing branches and thin congested areas to improve air circulation.

  • Can be kept smaller with annual summer pruning. Less frequent pruning results in larger size.

  • Shaping and renewal pruning is best done in early summer. Avoid major pruning in fall.

  • Disinfect pruning tools between cuts to prevent disease transmission.

With periodic corrective pruning, the fast growth of this magnolia can be contained within the space allotted.

Best Uses in the Landscape

The full grown butterfly magnolia steals the spring show and is ideal for:

  • Accenting the front lawn as a specimen focal point.

  • Anchoring a mixed border or foundation planting. Site carefully.

  • Near patios or walkways where flowers can be appreciated up close.

  • Groupings of three for a spectacular floral display. High impact!

  • Allows dappled shade below when mature. Not a dense shade tree.

Place it where the fragrant, lemon-scented blooms can be enjoyed every spring. It deserves a prominent spot in full view!

Potential Pests and Diseases

Butterfly magnolias are generally robust, trouble-free trees in the landscape. However, potential problems to watch for include:

  • Scale insects feeding on bark. Control with horticultural oils.

  • Leaf spots caused by fungus. Improve air flow and promptly remove affected foliage.

  • Cankers which can girdle branches. Avoid wounding and keep vigor high.

  • Root rot in soggy soils. Ensure good drainage.

Catching issues early allows for timely treatment to avoid lasting damage.

An Ornamental Beauty for the Garden

Each year it erupts in a spectacular floral display of bright yellow, fragrant blooms that resemble fluttering butterflies hovering gracefully among the branches. For maximum impact, be sure to give it room to reach its mature size of up to 30 feet tall and 20 feet wide.

When not in bloom, it carries itself with grace and adds nice fall color. This versatile magnolia is relatively adaptable and carefree once established. Just be sure to prune regularly to maintain its form.

For an outstanding focal point that announces spring has arrived in style, look no further than the butterfly magnolia! It is sure to be a much admired and enjoyed addition to your garden.

full grown butterfly magnolia tree

Popular Magnolia Trees for Your Garden

There are many different types of magnolias grown in gardens, and there are some suitable for all kinds of locations and climates. Here are some of the most important ones:

There are several species of magnolia that lose their leaves in winter. These mostly come from China and Japan, where they grow in woodlands and on hill-sides. Hundreds of varieties have been developed from them, and it is these, rather than the wild species, that are mostly grown in gardens.

This is the most widely grown deciduous magnolia, and it is a hybrid of the following two species:

Magnolia Denudata is called the Lily Tree or Yulan Magnolia. It grows wild in central and eastern China, and for almost 1500 years it has been cultivated in the grounds of Buddhist temples. It grows into a rounded tree no more than 30 feet tall, and it has white flowers in early spring.

Magnolia Liliiflora grows in south-western China, and it is called the Mulan magnolia, or purple magnolia. It is a small tree growing to just 12 or 15 feet tall, with flowers of a rich purple color.

These two trees had been brought to France in the 18th century, and in 1820, a retired officer from Napoleon’s army called Étienne Soulange-Bodin crossed these two species at his château outside Paris. The resulting tree is very widely grown in gardens, and as well, since seedlings grown from these trees produce variable flowers, many new varieties – up to a hundred – have been developed around the world.

Known as the Saucer Magnolia, this large shrub or small tree produces flowers in very early spring, on the bare branches, before the leaves emerge. Depending on the variety, the flowers may be white, pink, or purple, often with darker shades on the outside, and lighter shades inside. It is more tolerant of alkaline soils than many other magnolias, so it can grow easily in many gardens.

This, and it close relative Magnolia kobus, are called the Star Magnolia, because the petals of the flowers are narrow but long, and radiate from the center of the flower in a star pattern. It grows as a small to medium-sized shrub no more than 10 feet tall, with white flowers covering the bare branches in very early spring, from an early age. This is one of the hardiest magnolias, growing and flowering well even in zone 4. It grows well in most soils, and even grows in urban conditions, making it one of the easiest magnolias to grow almost anywhere. There is a variety called ‘rosea’, which has pink flowers.

This group of 8 different magnolias was developed at the National Arboretum, Washington in the 1950s. It was developed to deal with a specific problem growing deciduous magnolias in colder areas. Although the trees are hardy, and survive cold winters well, once the flower buds begin to develop they are sensitive to even light frost. Because they develop on the trees so early in the year, late frosts – which occur in many cold parts of the country – can destroy the blooming even before it begins, or when it has barely begun.

To overcome this problem, two scientists at the National Arboretum, William F. Kosar and Dr. Francis de Vos, made hybrids from the hardy star magnolia, and one of the parents of the Saucer Magnolia (Magnolia liliiflora), which we have already described. They used several varieties, with different flower colors and forms, of these two species in different crosses, to produce the biggest range of colors and flowers in their seedlings. They flower one or two weeks later than most other varieties, so they usually miss late frosts, and flower successfully in areas where others will usually be killed. Because of the star magnolia parent, the flowers are more open and spreading, showing off the paler colors within the flower.

The Little Girl Series Hybrid Magnolias
Name Flower color Parent One Parent Two
‘Ann’ Pinkish-red Magnolia liliiflora ‘Nigra’ Magnolia stellata ‘Rosea’
‘Betty’ Reddish-purple Magnolia liliiflora ‘Nigra’ Magnolia stellata ‘Rosea’
‘Judy’ Pink Magnolia liliiflora ‘Nigra’ Magnolia stellata ‘Rosea’
‘Randy’ Purplish-pink Magnolia liliiflora ‘Nigra’ Magnolia stellata ‘Rosea’
‘Ricki’ Reddish-purple Magnolia liliiflora ‘Nigra’ Magnolia stellata ‘Rosea’
‘Susan’ Purplish-red Magnolia liliiflora ‘Nigra’ Magnolia stellata ‘Rosea’
‘Jane’ Dark purple Magnolia liliiflora ‘Reflorescens’ Magnolia stellata ‘Waterlily’
‘Pinkie’ Pink Magnolia liliiflora ‘Reflorescens’ Magnolia stellata ‘Rosea’

After testing these plants for several years, they released them in the 1960s, and they are easily recognized because they all have girl’s names. Among the most popular are ‘Jane’, with dark-purple flowers, ‘Betty’ with reddish-purple flowers, ‘Ann’, with pinkish-red flowers, and ‘Randy’, with flowers that are more purple-pink in color. All of them form small trees, ideal for smaller gardens, and they will grow well across a wide area from zone 4 to zone 8. They are undoubtedly the top picks for American gardens, top choices among the many different kinds of deciduous magnolias available.

Most evergreen magnolias grown in gardens are derived from the Southern Magnolia (Magnolia grandiflora). This tree is native to the southeast, from North Carolina down into Florida, and west into Texas and Oklahoma. Old wild trees can be 90 feet tall, although garden trees are usually much smaller.

Magnolia Grandiflora trees grow in areas close to water, but not in it – this tree does not like constant wet soil. The leaves are up to 8 inches long, glossy above and with a brown, felt-like underside.

The flowers are up to 12 inches across, and richly perfumed. They bloom throughout the summer. There are three main reasons why the wild tree, although attractive, is rarely grown in gardens. One is its size. Secondly, trees take many years to begin flowering, and must grow to a large size first. Thirdly, they are not very hardy, so they cannot be grown in many parts of the country. So many different varieties – called ‘cultivars’ – have been developed, that overcome some or all of these issues. Here are the most important and valuable of them:

Bracken’s Brown Beauty – Named after Ray Bracken, and developed by him in the 1960s in South Carolina, this is a smaller, very compact form, and it is also among the hardiest, growing well in Southern Ohio and on Long Island. The leaves are narrower than in the wild tree, with a very thick, dark-brown felt on the underside. The flowers are smaller, around 6 inches across, but they are profuse for many months.

D.D. Blanchard – this variety began at Robbins Nursery in North Carolina, and it is notable for its upright form, with a single central trunk. The result is that although it will grow tall, it can be planted in a narrower space than other varieties. The flowers are 8 inches across.

Edith Bogue – This variety, named after Edith A. Bogue, a gardener in Florida, is perhaps the hardiest variety. It was introduced into New Jersey in the 1920s, and has been widely grown in colder regions ever since. It can withstand temperatures as low as minus 5 degrees Fahrenheit. The Edith Bogue Southern Magnolia only grows to around 35 feet tall, and it forms an elegant pyramidal shape. This variety is a top-choice for colder areas.

Kay Parris – This is a smaller variety, growing to around 25 feet tall in time, but staying smaller for many years. It is completely hardy in zone 6, bringing the Southern Magnolia to many gardeners who thought it was impossible to grow one. It is a cross between ‘Little Gem’ and ‘Bracken’s Brown Beauty’.

Little Gem – this is perhaps the smallest variety available, and it blooms when just 3 or 4 feet tall. It is ideal for smaller gardens, and also for growing in large pots and tubs. It only grows 12 to 15 feet tall, and 4 feet wide, and the leaves are only 5 inches long. The flowers are up to 6 inches across. This variety was created by Warren Steed, from seeds he collected in the town of Candor, North Carolina. He grew them at his nursery and in 1966 released ‘Little Gem’ to gardeners. It remains an extremely popular variety.

Although this species of evergreen magnolia was the first one sent to Europe from America, it is not as widely grown as the southern magnolia. This is a pity, as it is a handsome tree, and is much hardier than its cousin, as it will grow throughout zone 5, and it is found naturally as far north as New Jersey.

The flowers of the Sweetbay Magnolia, as it is called, are creamy-white, up to 5 inches across, and they are very strongly perfumed with the smell of vanilla. A tree will perfume the air hundreds of yards away, making it a great tree to bring beautiful scent to your whole garden. In southern areas it is evergreen, but in colder regions it can lose some or all of its leaves in winter, while the stems and buds remain quite hardy. This tree is a great choice for more natural landscaping and for planting in woodlands on your property.

The Best Features of a Magnolia Tree

– Spectacular flowers in spring or summer – Rich, glossy green foliage in the evergreen kinds – Wonderful specimen or screening trees – Wide range of colors and sizes for every garden – Easily grown and long-lived in many climate zones

The Stunning Butterflies Magnolia

FAQ

How big do butterfly magnolia trees get?

It typically grows as an upright, pyramidal tree to 18-20′ tall with a single trunk. It also grows as a multi-stemmed shrub. Upright, tulip-like, yellow flowers (to 4-5” across) bloom in late winter to early spring (late March in St. Louis).

What are the downsides of magnolia trees?

AI Overview
  • Root Damage:
    Magnolias have shallow, spreading root systems that can damage pavements, driveways, and even foundations if planted too close. 

  • Leaf Drop:
    Evergreen magnolias drop leaves year-round, while deciduous varieties shed leaves and flowers in the fall, leading to mess. 

  • Sunlight Obstruction:
    Mature magnolias can create significant shade, potentially blocking sunlight to other plants and parts of the yard. 

  • Space Requirements:
    Many magnolia varieties, especially evergreen species like Magnolia grandiflora, can grow quite large, requiring ample space. 

  • Pest and Disease Vulnerability:
    While generally hardy, magnolias can be susceptible to diseases like powdery mildew and pests like magnolia scale. 

  • Allelopathy:
    Some magnolia species release chemicals into the soil that can inhibit the growth of other plants nearby, according to the Lady Bird Johnson Wildflower Center. 

Where to plant butterfly magnolia tree?

Plant Magnolia in full sun or partial shade in moist, well-drained, slightly acid soil. Pruning requirement are minimal—remove dead or broken branches in late winter or early spring when plant is dormant. Other pruning can be done as needed after bloom.

Where should you not plant a magnolia tree?

One thing to note about Magnolias in particular is that their root system can be extremely strong and large. If planted too close to your house or fence, they can be destructive! Because of this, we made sure to plant them about 6′ away from the fence line, and they’re nowhere near the house.

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