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Best New Flowering Shrubs for 2024

Shrubs from bottom left to right: Juiced® Orange Jessamine (Image thanks to Proven Winners® ), Eau De Parfum™ Berry Rose (Image thanks to Monrovia® ), X Pyracomeles Berry Box™ (Image thanks to Proven Winners® ), and Eclipse® Bigleaf Hydrangea (Image thanks to First Editions® Plants).

Flowering shrubs are garden mainstays for bringing structure and seasonal color to beds, front borders, and large containers. 2024 brings a wealth of new, beautiful flowering shrubs to US gardeners. All selected are colorful and most will flower for months.

Hydrangeas

Proven Winners’ Tuff Stuff Top Fun™ is a good hydrangea for containers or garden edges. (Image thanks to Proven Winners)

Bailey Nursery and First Editions Plants have outdone themselves with the charming new Big Leaf Hydrangea, Eclipse® bigleaf hydrangea (Hydrangea macrophylla, USDA Hardiness Zones 5-9). The ruby red flowers of Eclipse glow in summer against the shrub’s large, dark purple leaves. Fully grown specimens reach 5′ tall and wide and grow in full to partial sunlight.

Two colorful new hydrangeas for more compact gardens include Monrovia’s reblooming Seaside Serenade® Kitty Hawk Hydrangea (Hydrangea macrophylla ‘Hokomapfloy’, Zones 5-9), a new 3′ x 4′ selection with starry pale pink flowers and an ability to grow beautifully under tougher conditions. It thrives in full sun to partial shade. The equally cute and resilient Tuff Stuff Top Fun Reblooming Mountain Hydrangea (Hydrangea serrata Tuff Stuff Top Fun™, Zones 4-9) is a recent Proven Winners introduction. The lacecap flowers are profuse and shrubs reach only 3′ x 3′.

Shrub Roses

Champagne Dreams is a beautiful, lightly fragrant new shrub rose from Jackson & Perkins. (Image thanks to Jackson & Perkins)
Monrovia’s Eau De Parfum™ Berry Rose (Rosa ‘Noa11356′) is a new shrub rose with all of the fragrance and old-fashioned romance of an heirloom. The disease-resistant rose reaches just 4′ x 4’ and produces loads of fully double, berry-red flowers from late spring to fall. Their fragrance is strong and outstanding, so plant yours near a patio or bench where their aroma can be enjoyed.

The delicately colored, disease-resistant Champagne Dreams Floribunda Rose (Rosa ‘JACgobesho’, 4 x 3′, USDA Hardiness Zones ) is a Jackson & Perkins exclusive shrub rose for 2024. The floribunda rose becomes laden with double, pale-apricot flowers from late spring to fall. The blooms are produced in clusters and have a light, fruity fragrance.

Other Select Shrubs

Berry Box™ (X Pyracomeles hybrid) is a compact new shrub with delicate spring flowers and bright fruits from fall to winter. (Image thanks to Proven Winners)

Looking for a truly miniature summer-blooming shrub that has the double bonus of attracting butterflies? Then try Butterfly Candy’s™ New Butterflybush Li’l Lavender™ (Buddleia davidii Li’l Lavender™, Zones 5-10). The 2′ x 3′ shrubs have large flower clusters of lavender. Plant the sun-loving shrub where soil drainage is satisfactory.

Reblooming Encore azaleas changed azalea growing forever. The shrubs truly rebloom in summer and the new Autumn Moonstruck™ Encore Azalea (RhododendronRoblezf‘, Zones 7-10) is a fine addition to the collection. Large, white, semi-double flowers bloom profusely on 4′ x 5’ shrubs with variegated foliage of ivory and green.

Butterflybush Li’l Lavender™ makes a lovely addition to sunny summer gardens. (Image thanks to Butterfly Candy™)
Proven Winners: Juiced® Orange Jessamine (Cestrum corymbosum Juiced® Orange Jessamine, Zones 7-10). Southern gardeners can enjoy the sunny golden orange blooms of the evergreen Juiced® Orange Jessamin. The sun-loving shrubs reach 5′ x 4′ and produce clusters of golden orange, fragrant flowers in the warm summer months. Butterflies are attracted to the flowers.
I had to include Proven Winners Berry Box (X Pyracomeles hybrid, Zones 7-9) because the miniature (3.5′ x 3′) fruitful shrub offers both spring flowers and bright orange-red berries in fall and winter. Berry Box™ will grow beautifully in a large container.

Shrub Planting and Care

Shrubs are a long-term investment, so make certain to know the needs of any shrub before planting. For further information, I recommend reading the invaluable article, How to Plant and Site Trees and Shrubs, by horticulturist Russell Stafford. It will provide all the details for how to choose the best location in your yard for any shrub of interest. Additionally, when planting any in-ground shrubs, I recommend amending the ground soil with Fafard® Premium Natural & Organic Compost. The natural and organic amendment is formulated for organic gardening.

Garden Perennials that Gently Self Sow

Butterfly weed is a lovely native that will sow itself very gently and weave into the garden.

Some perennials persist in the garden not only as over-wintering plants, but also via self-sown seedlings. With their penchant for popping up spontaneously here and there, they’re a great fit for cottage gardens, wildflower borders, and other informal plantings. Additionally, they obviate the need for deadheading!

Unwelcome Self Sowers

Admittedly, a few perennials can take self-sowing too far. For example, a lemon balm (Melissa officinalis) that is allowed to go to seed will soon produce a population bomb, spawning gazillions of offspring. Although the plants profiled below typically self-sow in moderation, they can be more prolific in favorable situations. Keep an eye out and a hoe at hand just in case!

You’ll also want to discourage self-sowing by named varieties of perennial species whose seedlings are not true to type. Allow your pristine Phlox paniculata ‘David’ to self-sow, and you’ll likely soon have a flock of muddy-purple wild-type offspring. The same goes for many other groups of perennials, including columbines (Aquilegia spp.), and just about anything from the aster/daisy family, though on occasion their offspring can be quite pretty.

Aquilegia hybrids gently self-sow, but their seedlings yield various unexpected surprises.

Finally, avoid heavy applications of mulch in areas where you want to encourage self-sowing. Most perennial seeds will not germinate while are buried under a 3-inch stratum of shredded bark. A much more satisfactory method of controlling weeds is to allow desirable plants to seed themselves densely into any garden gaps and to keep the gaps weeded while the new seedlings develop. A light early-spring scattering of Fafard Premium Natural & Organic Compost is all the mulch you’ll need in an established, densely populated border.

Welcome Self Sowers

Black cohosh, bugbane (Actaea racemosa)

The white flower spikes and ferny foliage of black cohosh are both attractive.

Native to moist fertile woodlands over much of the eastern U.S. from zones 4-8, this imposing perennial produces moderate numbers of seedlings in similar garden habitats. Mature plants form ferny-leaved, 3-to 4-foot clumps, surmounted in summer by white bottlebrush flower spikes. Several other U.S. native bugbanes are also well worth growing, most notably the relatively compact, bold-leaved, late-summer-blooming Actaea rubifolia.

Blue-star (Amsonia spp.)

The pale flowers of Arkansas blue-star mingle with tall Allium.

Most members of this mostly North American genus will self-sow obligingly (but not invasively) in sunny to lightly shaded garden niches. Almost all amsonias are large, upright, long-lived clump-formers with handsome, lance-shaped, disease-resistant foliage and starry, light blue, late-spring flowers. Arkansas blue-star (Amsonia hubrichtii, Zones 5-9) is especially handsome, thanks to its extremely narrow leaves that lend its 3-foot clumps a hazy, dreamy look. It’s also one of the most reliable self-sowers of the lot.

Butterfly weed (Asclepias tuberosa)

Both butterflies and bees are attracted to the bright flowers of butterfly weed.

A durable eastern U.S. native for hot dry sunny niches, butterfly weed summons early-summer pollinators with its brilliant flat-headed clusters of orange to yellow flowers on 2-foot stems. The ensuing seed pods split open to release downy seeds that float away on the summer breeze – and germinate the following spring. Volunteer seedlings can be sparse to abundant, depending on wind patterns and other vagaries. Grow it in zones 3-9.

Bleeding heart (Dicentra spp.)

Fringed bleeding heart is an exceptional native for pollinators.

Fringed bleeding heart (Dicentra eximia, Zones 3-9) would be worth growing for its lacy, finely divided, blue-green foliage alone. For most gardeners (and hummingbirds), though, it’s the flowers (which resemble fanciful pink flasks rather than hearts) that are the primary feature of this lovely eastern U.S. woodlander. Bloom repeats sporadically from spring through fall, spawning the occasional seedling. Hybrids (such as ‘Luxuriant’) between Dicentra eximia and its western U.S. cousin Dicentra formosa (Zones 4-8) are sterile and seedless. At around a foot tall, Dicentra eximia and its hybrids are miniatures compared to the species whose cordate flowers inspired the common name “bleeding heart”. The purple-pink hearts of Dicentra spectabilis (recently re-dubbed Lamprocapnos spectabilis, Zones 3-9) open in mid-spring on arching stems that ascend to 3 feet or more. There’s also a beguiling white-flowered variant. All manifestations of the species self-sow modestly and true to form.

Gas plant (Dictamnus albus)

Gas plant blooms have a sweet citrusy scent.

Slow from seed and in growth, gas plant is one of a multitude of splendid perennials that are rarely offered because they are a poor fit for mass-market plant production. Give it a few years, and it will mature into a 3-foot hummock of lustrous, dark-green foliage decked in late spring with spikes of fragrant, showy purple or white, hummingbird-seducing flowers. One of the best strategies for propagating this long-lived Eurasian native is to wait for volunteer seedlings, which occur sporadically. Gas plant has only one liability as an ornamental: in rare instances, the volatile oils that inspired its name can cause blistering and other symptoms of acute dermatitis. These volatile compounds are also responsible for a time-honored garden ritual. Hold a match near the plant on a calm warm evening and its “gases” will briefly flare into flame. Grow in zones 3-9.

Purple coneflower (Echinacea purpurea)

Here purple and white coneflower variants mingle in a naturalistic garden.

No need to plant more of this beloved Midwest native: once it’s in your garden, it will almost certainly give you a scattering of volunteers. Expect to see their rose-pink, dark-coned flowers within a year after they germinate. Seedlings of the slew of recently introduced hybrids involving Echinacea purpurea (Zones 4-9) and the yellow-flowered Echinacea paradoxa (Zones 4-9) are a different story. Even if they survive the winter – a dubious proposition in USDA hardiness zones 6 and lower – they’ll produce flowers unlike those of their parent.

Rattlesnake master (Eryngium yuccifolium)

The unique foliage and flowers of this prairie native add interest to native gardens. (Image by Kurt Stueber)

You might think that a perennial with yucca-like foliage (and a botanical name to match) would favor arid conditions. In fact, Eryngium yuccifolium (Zones 3-9) often occurs in moist habitats in its native range, which spans much of eastern and central North America. Give it a reasonably fertile, not too dry garden soil, and it will send up 4-foot stalks in midsummer, topped by spheres of silvery flowers. Allow it to seed, and you’ll be rewarded with progeny the following spring.

Bearfoot hellebore (Helleborus foetidus)

The pale chartreuse flowers of bearfoot hellebore bloom in late winter to early spring.

Most hellebores self-sow, given the opportunity. Helleborus foetidus (Zones 5-8) is perhaps the most adaptable and fecund of the lot, prospering and self-propagating in sun and shade. A member of the shrubby side of the tribe, it bears leaves and pale chartreuse flowers on upright stems that can ascend to 18 inches or more. The foliage is pleasantly pungent rather than unpleasantly fetid.

Cardinal flower (Lobelia cardinalis)

Cardinal flower spikes have blooms of the purest red imaginable.

The brilliant red spires of cardinal flower (Zones 3-9) are a common midsummer sight in wetland habitats of eastern and central North America. Quite often they’re attended by adoring hummingbirds. Relatively short-lived in the garden, they persist by sowing themselves into moist exposed soil, germinating into evergreen rosettes. Equally wonderful is blue cardinal flower (Lobelia siphilitica, Zones 4-8), another eastern North American native and midsummer hummingbird fave. It succeeds in just about any garden position except deep shade. Its white-flowered form is also compelling.

Virginia bluebells (Mertensia virginica)

Virginia bluebells will make any spring garden look lovely.

Give this eastern U.S. native (Zones 3-9) a good moist soil in partial shade, and it will spread freely both from underground rhizomes and from self-seeding. A member of the borage family, it produces the blue flowers typical of the tribe. The blue-green, tongue-shaped leaves go dormant soon after the flowers fade in late spring.

Celandine poppy (Stylophorum diphyllum)

Wooded native gardens are suited to celandine poppies.

An excellent shade-garden companion for Virginia bluebells (as well as trilliums and woodland phlox), this reliably self-sowing eastern U.S. native (Zones 4-9) bears glistening yellow mini-poppies on 18-inch plants clothed in large lobed leaves. Its East-Asian analog Stylophorum lasiocarpum blooms in summer.

Among the numerous other perennials that seed themselves are:

  • Blazing star (Liatris spp.);
  • Patrinia (Patrinia spp.);
  • Beardtongue (Penstemon spp.);
  • Balloon flower (Platycodon grandiflorus);
  • and Yellow fumitory (Pseudofumaria lutea).

They’re living proof that going to seed is not necessarily a bad thing!