The 13 Best Summer-Blooming Shrubs

Part 1 of the Series of 2
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Bluebeard Shrub
Caryopteris

This shrub is a treat in late summer when it bears its airy clusters of beautiful blue blooms. It’s extra-easy to grow, too, laughing off all but the worst heat and drought. As an added bonus, birds and butterflies love it. Bluebeard shrub makes a great cut flower, too.

Name: Caryopteris varieties     Growing Conditions: Full sun and well-drained soil

Size: To 4 feet tall     Zones: 5-9

Butterfly Bush

Butterfly Bush

Butterfly bush is like a summer-flowering lilac. The blooms appear in similar colors — purple, lavender, blue, pink, and white — and are deliciously fragrant. Happily, butterfly bushes offer a longer bloom season than lilacs: from summer into autumn, especially if you pinch off the old flower clusters as they start to fade.

Name: Buddleia davidii     Growing Conditions: Full sun and well-drained soil

Size: To 10 feet tall or more     Zones: 5-9

Carolina Allspice

Carolina Allspice

This underused gem offers beautiful deep red flowers in summer. These flowers have a powerful, spicy fragrance you can enjoy throughout the yard. It’s also a tough, low-care plant native to areas of North America.

Name: Calycanthus floridus     Growing Conditions: Full sun or partial shade and well-drained soil

Size: To 8 feet tall     Zones: 5-9

Hydrangea paniculata

Hydrangea paniculata is the easiest hydrangea to grow. In late summer and autumn, this rugged shrub produces fluffy clusters of white flowers that fade to shades of pink and green. Many cultivars, such as ‘Tardiva’, can be successfully trained into a standard, or miniature tree form — perfect for a large container or just about any landscape spot.

Name: Hydrangea paniculata     Growing Conditions: Full sun or part shade and well-drained soil

Size: To 10 feet tall and wide     Zones: 4-8

Oleander

An exceptionally easy-care subtropical shrub, oleander offers summertime flowers in shades of pink, red, purple, lilac, yellow, and white. In fact, it’s so foolproof that in many areas it’s grown along the sides of highways in warm-weather areas. Note, though: Oleander is extremely poisonous.

Name: Nerium oleander     Size: To 10 feet tall, depending on species

Growing Conditions: Full sun and well-drained soil     Zones: 10-11

Potentilla

Potentilla is one of the most common, and easiest shrubs to grow. It starts blooming in late spring and continues through autumn, bearing cheery yellow, orange, red, or white flowers that look like single roses (which attract butterflies). It has attractively divided foliage.

Name: Potentilla fruticosa     Size: To 3 feet tall

Growing Conditions: Full sun and well-drained soil

Reblooming Hydrangea
While most bigleaf hydrangeas flower on branches from the last year (making them susceptible to injury from spring frosts or especially cold winter temperatures), reblooming varieties such as ‘Endless Summer’ produce flowers on fresh growth. This ensures lots of blooms throughout the summer.

Name: Hydrangea macrophylla varieties     Growing conditions: Part shade and moist, but well-drained soil

Size: To 5 feet tall     Zones: 5-9

Rock Rose
Rock Rose

Rock roses are easy to grow because they tolerate drought so well. They’re beautiful, too, producing colorful roselike flowers throughout the summer. And they bloom in a wide range of colors, from pink to purple, lavender, and white.

Name: Cistus varieties      Growing Conditions: Full sun and well-drained soil

Size: To 5 feet tall     Zones: 8-10

Rose of Sharon
You can rely on rose of Sharon to provide lots of color during the hottest months. From midsummer to early autumn, the shrub erupts in tropical-looking blooms in shades of pink, lavender-blue, and white. Tip: When shopping for rose of Sharon, look for sterile varieties, such as ‘Minerva’, that won’t fill your garden with a ton of weedy seedlings.

Name: Hibiscus syriacus     Growing Conditions: Full sun and well-drained soil

Size: To 10 feet tall and wide     Zones: 5-9

 

2 thoughts on “The 13 Best Summer-Blooming Shrubs

  1. Pingback: Shamrock Hydrangea | Landscaping - Gardening

  2. Pingback: Butterflies and Lilacs: Signs of Summer Already « 3 Quarters Today

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