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Everything You Need to Know About Bloomerang Lilac Trees

Bloomerang lilac trees’ beautiful purple blossoms wow twice a year.

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Plant lovers just can’t get enough of lilac trees’ bursts of fragrant purple blossoms—and with the Bloomerang lilac tree, they don’t have to. This lilac tree blooms twice a year, filling the air with the aroma of its deep purple-lilac, star-like flowers. After an initial stunning show in spring, Bloomerang lilacs take a rest until late summer, when they rebloom until the first frost. With a pleasing round shape at a compact size, Bloomerang lilac trees are a perfect addition to any garden.

Bloomerang Lilac Trees at a Glance

  • Bloom twice per year
  • Fragrant purple-lilac flowers
  • Smaller than other lilac trees
  • Deer-resistant
  • Attract butterflies and hummingbirds
  • Not sensitive to urban environments/air pollution

Appearance

Bloomerang lilac trees are more compact than other lilacs, growing to a small stature of 4-6 feet tall with a 4-6 foot spread, giving them a pleasant, round shape. Their veined leaves are deep green for most of the year and turn yellow in fall and grow on long, arched branches.

Bloomerang lilac trees have distinctive, 4-petaled, 4-6 inch deep lilac-purple flowers that bloom starting in May, take a pause through June, and bloom again from July through the first frost of the year.

Specifications

Appearance Compact and rounded shape with long, arched branches and deep green leaves that turn yellow in fall. In spring and later in summer, 4-6 inch lilac-purple flowers with four splayed petals
Appearance Compact and rounded shape with long, arched branches and deep green leaves that turn yellow in fall. In spring and later in summer, 4-6 inch lilac-purple flowers with four splayed petals
Height 4-6 feet
Hardiness Zones Zones 3-7
Type of tree Deciduous shrub
Sunlight requirements Full sun to partial shade
Soil composition Moist, well-drained alkaline

Hardiness Zones

USDA Hardiness Zones indicate the parts of the country where trees grow best, based on minimum winter temperatures in each region. Bloomerang lilac trees flourish in Zones 3-7, doing exceptionally well in the north. They require a period of cold weather in order to bloom.

Planting

Bloomerang lilac trees should be planted in areas that have well-drained soil and, ideally, full sunlight. You can plant these trees almost any time of year except for winter, but spring is recommended.

Pull any weeds and remove any turfgrass and debris from the area, then dig a hole that is twice the width of your root ball. Tease the roots of your root ball gently before placing it in the hole. You want it to sit slightly higher than the level of the surrounding soil if you are worried about drainage. Otherwise, plant it 1-1.5 inches below the soil level. Backfill the hole with soil, tamping down to remove any air pockets.

Water thoroughly, and place a 3-inch layer of mulch.

Growing Conditions

Bloomerang lilac trees are relatively hassle-free.

Sun and shade

Bloomerang lilac trees thrive in full sun, receiving at least six hours of direct sunlight per day. They can tolerate partial shade, but they will not produce as many flowers.

Soil

The trees prefer moist, well-drained, alkaline soil. Soggy soil conditions can damage their roots. A thin layer of mulch can conserve the proper amount of moisture and protect the Bloomerang from temperature fluctuations.

Watering

Bloomerang lilac trees will need the most water during their flowering season. Water once every 10 days to two weeks from spring until the end of the bloom season, just before the first frost. Your tree will need two inches of water so that the soil is moist down to 12 inches.

During the rest of the year, water during extended dry periods—if the top three inches of the soil start to completely dry—and if the leaves wilt in dry weather.

Fertilizing

You can fertilize your Bloomerang lilac tree in early spring starting the second year after planting. Apply a fertilizer that is specifically designed for lilacs—these typically have less nitrogen and a higher level of phosphorus and potassium. An NPK value of 5-10-10 does well.

Pruning

Pruning is not required for your Bloomerang lilac tree—while it can boost new growth, your tree will rebloom either way. If you decide to prune your tree, do it immediately after its first bloom. Doing it in fall, winter, or before the first bloom will cut off the flower buds. If you trim, the rebloom will be delayed a few weeks.

Frequently Asked Questions

How tall do they get?

Smaller than other lilac trees, Bloomerangs grow to 4-6 feet tall.

Do lilac trees bloom more than once a year?

Most do not, but the Bloomerang lilac tree blooms in spring, takes a pause in early summer, then blooms again from summer all the way to the first frost of the year.

How do you take care of them?

Bloomerang lilac trees are low-maintenance—the most important part of caring for them is making sure that when they’re initially planted, they’re in well-draining soil and receive full to partial sun, with a preference for at least six hours of direct sunlight per day.

Do I need to prune them for reblooming?

No, your Bloomerang lilac tree will rebloom even without pruning.

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