In our winter hardiness trials, Abutilon 'Bartley Schwarz' (named after the late California plantsman, although incorrectly spelled "Schwartz") has been one of our best performers. The slightly pendent branching habit of this Abutilon megapotamicum hybrid makes a 4' tall x 4' wide clump clothed with small, fuzzy green serrated leaves and adorned from early summer through fall with 1.5" wide, salmon-orange (RHS 24B) bells that dangle from the outstretched stems. As a houseplant, this clone is everblooming (should be the same in an apartment)...just watch out for hummingbird droppings. Pot Size: 3.5" (24 fl. oz/709.77 ml)
This is a marvelous hummingbird favorite that has survived 6 degrees F in our garden. This hibiscus relative has maple-like foliage on a compact 6' tall x 3' wide plant. For us, Abutilon 'Canary Bird' starts flowering in early summer with large, dangling, 3" wide, canary yellow, bell-like flowers and continues until the first frost. For those in more northerly zones, Abutilon 'Canary Bird' makes a great centerpiece for a container planting. Good winter drainage is key for maximum cold tolerance in the ground. Pot Size: 3.5" (24 fl. oz/709.77 ml)
This upright abutilon is clothed with 2" wide, fuzzy green leaves and adorned from early summer until fall with 2.5" wide, hanging, orange (RHS 24B) lanterns, each highlighted with dark orange veins...a hummingbird delight. This 4' tall x 2.5' wide flowering maple has proven to be reliable in our climate after three winters and is also a great summer container specimen. Pot Size: 3.5" (24 fl. oz/709.77 ml)
This fun and easy-to-grow Brazilian native makes a great hummingbird magnet for the perennial border, spreading to several feet wide in a single season. If you're into container gardening, a flowering maple also makes a great hanging basket plant. In the wild, Abutilon megapotamicum reaches 8' tall, but in temperate climate cultivation, it rarely exceeds 5' tall. From late summer until frost, the plants are laden with very cool 2" hanging red lanterns, carefully placed between the thumb-sized green leaves. Pot Size: 3.5" (24 fl. oz/709.77 ml)
This vigorous hummingbird favorite makes a 5' tall x 5' wide upright mass of woody stems adorned with fuzzy, dark green leaves. During the summer, the outermost branches are laden with dangling parchment-yellow flowers, each highlighted by a dark red calyx. This has been a superb performer in our winter hardiness trials. Although we list this as a selection of Abutilon megapotamicum, its vigor and leaf shape suggest its baby-daddy is instead a close relative. Pot Size: 3.5" (24 fl. oz/709.77 ml)
I longed for an abutilon with pastel flowers and plantsman Luen Miller of Monterrey Bay Nursery came to the rescue with this fabulous selection of Abutilon megapotamicum. The 3' tall x 4' wide clump is adorned from early summer until fall with small pink dangling bells that line the stem...simply charming for both the gardener as well as nearby hummingbirds. Pot Size: 3.5" (24 fl. oz/709.77 ml)
Thanks to Luen Miller of Monterrey Bay Nursery for sharing his splendid 2005 introduction...a hybrid of Abutilon megapotamicum. The 3-4' tall mass of stems is adorned with pointed green leaves, and from early June until fall with hundreds of dangling bell-shaped flowers. The flowers are clear orange, highlighted by red bloodshot eye-like veins. Each flower is held tight by a dark burgundy calyx (the thing the flower sits in). Abutilon 'Orange Hot Lava' has been a standout in both our summer flowering and winter hardiness trials. Nine out of 10 hummingbirds agree, Abutilon 'Orange Hot Lava' is a top choice! Pot Size: 3.5" (24 fl. oz/709.77 ml)
This Jon Dixon hybrid has been an amazing performer in our garden trials. Not only did it continue flowering into the upper 20s, but it kept green stems and leaves down to 20 degrees F. Abutilon 'Voodoo' makes an upright clump to 6' tall x 3' wide adorned, starting in late summer and continuing into late fall, with large 2", blood red, bell-shaped flowers dangling from the top half of the plant. This hummingbird favorite is one of the best performers of the upright, large flower type flowering maples we have ever grown. Pot Size: 3.5" (24 fl. oz/709.77 ml)
This marvelous native of Cuba ("Coober" to us Southerners) has long been prized for containers and hanging baskets, but no one ever tried it for winter hardiness. Imagine our surprise when in the mid '80s it survived 0 degrees F. Since then, it's been one of our favorite summer flowering perennials. The 8" tall x 2' wide clumps of small, fuzzy green leaves are adorned all summer with 5-7" long, trailing, fuzzy red cattails. If you can't afford to buy one, stir a can of red paint with your cat's tail for the same effect, but watch the claws. If you're in the North, it's still great for hanging baskets and summer containers...simply delightful! Pot Size: 3.5" (24 fl. oz/709.77 ml)
Although some taxonomists have lumped Acanthus hungaricus into Acanthus balcanicus, we feel that there is a horticultural difference. Picture a tropical-looking, dark green, glossy, thick-leaf fern forming a 30" wide deer-resistant perennial and you've got an acanthus. Acanthus balcanicus v. hungaricus is topped in early spring with a 3' tall spike composed of purple, pink and white bicolor turtleheads...very unique! Plant this where you want it to stay. While it is easy to move, small root pieces that are left behind keep on giving and giving and giving... Pot Size: 3.5" (24 fl. oz/709.77 ml)
This delightfully saucy acanthus has paraded in the trade for years as Acanthus spinosus, but is nothing like that species...i.e., it's missing its spines. It appears perfectly intermediate between Acanthus hungaricus and Acanthus spinosus and is probably a hybrid, hence we have assigned a cultivar name commemorating its widespread culture in Holland under the wrong name. The 1' tall x 2' wide mass of deeply incised, black-green, deer-resistant leaves makes a wonderful clump topped in late spring with 2' tall spikes of white flowers hidden by spiny purple hoods. Sunny, slightly acid to alkaline conditions are best and be aware that unlike vasectomies, cutting the translocation system (roots) causes more babies. Pot Size: 3.5" (24 fl. oz/709.77 ml)
I spent years lusting after this breathtaking plant. Finally, not only do we have it, but we have enough to share. This unusual selection of the European Acanthus mollis comes via a gardener in Tasmania. The bold-textured, dark green leaves with deeply scalloped edges are highlighted by an irregular border that emerges creamy gold, then changes to white as the leaves mature. The older leaves eventually lose most of the coloration. When the 3' wide deer-resistant clumps mature, they are topped with 5' tall spikes of true pink flowers...simply stunning! Acanthus 'Tasmanian Angel' must have some sun to survive...also a rich, moist soil is preferred. Pot Size: 3.5" (24 fl. oz/709.77 ml)
We feel this import by Oregon's Chet Tompkins from a gardener in China is the finest acanthus on the market. Acanthus 'Summer Beauty' is a hybrid (probably Acanthus mollis x Acanthus spinosus) that grows well in our hot summers where Acanthus mollis fails miserably. The 4-6' wide clump of giant, glossy, dark green foliage is much more cutleaf than Acanthus mollis. In summer, the tropical-looking clumps are topped with 6' tall spikes of white flowers surrounded by wonderful purple calyces...absolutely superb, and soon to be an industry standard! Pot Size: 3.5" (24 fl. oz/709.77 ml)
This 1993 introduction is a discovery from the late Alan Bloom of England, who found it growing in a patch of Achillea 'Moonshine'. Achillea 'Anblo', marketed under the equally strange name 'Anthea', is a noticeable improvement over most of the yarrows that we have tried...it actually survives here without trying to take over the garden. The basal rosette of cutleaf silvery foliage is topped in late spring with very erect 30" stalks, holding nice flower clusters of light butter yellow. This is a great addition to the softer color parts of the border. Pot Size: 3.5" (24 fl. oz/709.77 ml)
We've tried many yarrows through the years and most have struggled through our hot humid summers, with the exception of Achillea 'Strawberry Seduction'. This Achillea millefolium hybrid (possibly with Achillea clypeolata) was selected in 2001 by Holland's Michiel Zwaan, who bred it from the Achillea Summer Pastels seed series. Achillea 'Strawberry Seduction' is a long-flowering selection that begins flowering in June with strong 2' tall well-branched stems, topped with clusters of colorfast red flowers, highlighted with small yellow centers. I've experienced strawberry reductions before, but admit that I find the imagery of a strawberry seduction berry interesting. Pot Size: 3.5" (24 fl. oz/709.77 ml)
Achillea tomentosa was always a favorite rock garden plant and we thought it was time to offer it once again. This time, we have selected the cultivar Achillea tomentosa 'Goldie', which is more compact and earlier to flower than Achillea tomentosa 'Aurea'. The tight mat-forming 3" tall x 1' wide clumps of silver hairy foliage are topped with 6" tall corymbs (your new word for the day) in April and May (NC). Good drainage is important for success with Achillea tomentosa.
Pot Size: 3.5" (24 fl. oz/709.77 ml)
We have trialed a number of achimenes for winter hardiness and are always thrilled when we find another cultivar to add to our list. Achimenes 'Harry Williams' was a delightful surprise when it returned in great shape after a winter low of 8 degrees F. Emerging in June, the fuzzy green foliage adorns short stems, topped in summer with beautiful pansy-shaped flowers that emerge crimson red, then morph to crimson violet, both with a contrasting yellow throat. Pot Size: 3.5" (24 fl. oz/709.77 ml)
Over the years, we have found a few of the normally tropical African violet relative, achimenes, that survive in our Zone 7b garden. Achimenes 'Purple King' was the first and still one of the best, shared with us by former PDN staffer James Proctor. The low 1' tall x 1' wide clump of upright stems are clothed with hairy, dark green foliage and smothered with 2" deep-purple flowers from July through September. Plants are late to emerge in spring, not appearing before June. Achimenes do not tolerate wet winter soils, so a winter dry spot and a good mulch is recommended from Zone 8 north. Pot Size: 3.5" (24 fl. oz/709.77 ml)
Despite the long, tongue-twisting name, the dwarf golden sweet flag is one of the most striking and certainly the cutest of the acorus. The tufts of tiny, golden, grasslike, evergold foliage make a slowly spreading patch to 2' wide in 5 years. If you get out the magnifying glass, you'll notice the tiny aroid-like tan spadices (flowers) in early summer. Acorus 'Minimus Aureus' is a bright deer-resistant dwarf groundcover in moist areas where it makes either a feature specimen or a killer filler between dark stepping stones...a real highlight in the woodland garden. Pot Size: 3.5" (24 fl. oz/709.77 ml)
Actaea 'Misty Blue' is a fabulous Mt. Cuba selection of the native East Coast woodlander, Actaea pachypoda (no, we're not lumping them with cimicifuga, which we find ridiculous). Actaea 'Misty Blue' has glaucous, pewter colored, pinnate foliage compared to the typical green. The 18" tall clumps are topped in spring with short stalks of white flowers, followed by really cool white berries attached by bright red stems. You're going to love this amazing selection...if you plant it in a site with moist, but well-drained soil. Pot Size: 3.5" (24 fl. oz/709.77 ml)
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