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Partial Shade

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Drought Tolerant

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Hardiness Zone Map


Allium

Ornamental Onion

Our selections are embellished versions of the common culinary bulbs. Prospering in a sunny, well-drained site, these pest resistant Alliums add flair to the garden, your favorite container and a fresh or dried arrangement.

<i>Allium christophii</i>

As the strap-like leaves die off, Allium christophii sends up stout stems topped by sculptural blossoms. The spherical heads, an airy array of delicate amethyst stars, span nearly 10 in., and are almost too big and too beautiful to be real. Breathtaking in borders and bouquets, Star of Persia’s fawn-colored seed heads dry perfectly. Plant a drift in a well-drained spot and surround with the enduring leafy foliage of Geranium ‘Buxton’s Variety’. This Allium withstands both deer and rodents in our garden.

Blooms June

Size: 2' 0" high x 8" – 10" wide.

Hardy to zone 4.

<i>Allium</i> ‘Gladiator’

True to its name, ‘Gladiator’ is a crowd pleaser that asserts fantastic giant globes shouldered by tall hefty stems and rugged sword-shaped green basal foliage. Vibrant purple blooms, 4 to 5 in. wide, exuding a sweet yet pungent aroma, are composed of tightset green-eyed florets with a metallic luster.

A hybrid between Allium hollandicum and most likely Allium macleanii, this Allium can be staged throughout a stand of white and yellow Verbascums for spectacular colors and divergent flower forms.

Blooms May – June.

Size: 3' 0" – 4' 0" high x 8" – 12" wide.

Hardy to zone 5.

<i>Allium hollandicum</i> ‘Purple Sensation’

Aptly named, this ornamental Allium creates quite a stir as several hundred petite, deep purple flowers squeeze into one sensational-looking baseball-sized inflorescence. A selection made by Mr. J. Bijl in 1963 to produce a dark, vividly hued flower color, ‘Purple Sensation’ rises on tall beefy bare stems from a low nest of narrow, long twisting leaves that disappear around blooming time. Its strongly defined form can be repeated throughout the perennial border, delivering concentrated violet punches and dynamic counterpoints to softer shapes and hues, while remaining equally delightful when seed heads appear.

Blooms May – June.

Size: 2' 0" – 3' 0" high x 6" – 8" wide.

Hardy to zone 4.

Kudos to Allium expert Mark McDonough for this sensational easily grown cultivar, which recently won the 2018 Perennial Plant of the Year award. Tight set, slightly flattened, slender deep green leaves craft a lustrous compact clump that’s topped with vibrant rosy mauve globes on naked 18 in. scapes. Tantalizing butterflies and other pollinators, the profusion of showy 2 in. wide sterile blooms never reseeds and lends colorful long-lasting accents to bouquets. A supposed Allium nutens offspring, vigorous ‘Millenium’ can be situated near the front of the border or peppered amid the rockery or a cottage garden, where it resists deer and rabbits.

Blooms July–August

Size: 15" – 20" high x 12" – 18" wide.

Hardy to zone 5.

<i>Allium</i> ‘Mont Blanc’

Impressive, 5 to 6 in. creamy white spheres perch atop brawny, straight, green glistening stems, evoking a snowy mountain’s majestic appeal. The tallest of the white flowering Alliums, this long blooming luminous beauty can be superimposed en masse against a dark backdrop or interplanted amid quantities of purple flowering Alliums. Coveted by gardeners, florists and bees, vigorous ‘Mont Blanc’ yields long strapping leaves persisting ‘til flowering time and is distasteful to those fretful deer.

Blooms May – June.

Size: 3' 0" – 4' 0" high x 8" – 12" wide.

Hardy to zone 4.

<i>Allium schubertii</i>

Evoking the charged energy of a bursting firecracker, some 200 miniature star-styled florets top stiff pedicels, which shoot out in all different lengths from the flower's center. Sponsored by wavy, 1 in. wide straps and thick staunch stems, the fantastic spidery globes—enormous, loosely arranged lilac-pink wonders tailor-made for arrangements—measure at least a foot across and lay claim to their name as the entire ball eventually blows away, scattering seeds.

This uniquely shaped ornamental onion's native home is the mediterranean and central asia, and naturally it relishes a warm sunny niche, and when dormant, a toasty dry spell.

Blooms May – June.

Size: 12" – 18" high x 8" – 10" wide.

Hardy to zone 5.

<i>Allium senescens</i> ‘Blue Eddy’

Narrow curly bluish green leaves fashion a dwarf tightset pinwheel-like rosette that evokes swirling eddies and inspires the cultivar name. Bred by onion enthusiast Mark McDonough, this unique A. senescens var. glaucum selection serves up rounded pastel lavender pink flowers on 6 in. stems. An adaptable drought-tolerant pollinator minion, Allium 'Blue Eddy' wards off deer, favors well-drained crannies, makes a lovely cut flower and can be utilized in the herb garden, amid stone work or along pathways.

Blooms August–September

Size: 8" – 12" high x 8" – 12" wide.

Hardy to zone 4.

<i>Allium sphaerocephalon</i>

Arising from narrow grassy leaves, the tall and upright, slender stems present sumptuous thickset globes in blazon crimson-purple hues. An intriguing bicolor effect is created as green buds slowly open from the bottom up. Prized by bumblebees, the long lasting, 2 in. wide blooms assure a breathtaking summer spectacle en masse with swaths of Echinops ‘Blue Glow’ and Monarda ‘Violet Queen’ interspersed.

Blooms July–August.

Size: 2' 0" – 2-1/2' high x 5" wide.

Hardy to zone 5.

Favored by pollinators and plant purveyors, ‘Summer Beauty’ begets plenteous, large lavender-pink pompoms balanced atop sturdy, 20 in. tall stems. The upright strap-like leaves distinguish a neat polished green basal mound that announces fall with golden highlights. Full of long-lived vim and vigor, this sterile Allium can be ushered into the rockery or a patio pot so its sprightly pastel-hued accents can be relished all summer long.

Blooms June–August

Size: 18" – 2' 0" high x 12" – 18" wide.

Zone 4/5.

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Latest News

Saturday Strolls & Plant Chats 2019!

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Current Staff's Favorite Plant

Current Staff's Favorite Plant

Our Featured Plant: Echinops bannaticus ‘Taplow Blue’

View our Early August 2019 Newsletter via this link!

Exceptional Echinops, Plants to freshen up your August garden, Saturday Strolls!

Exceptional Echinops!

The striking floral orbs sport either frosty white, cobalt blue or metallic-blue shades, while perched atop sturdy erect stems with handsome jagged-edged foliage. Cherished by pollinators, floral designers and gardeners alike, Echinops thrive in sunny, well-drained niches, though are tolerant of poor soil as well as rock-strewn or sandy sites. These undemanding European natives are perfect candidates for a formal border, cottage garden, meadow-style planting or a cut arrangement. Be sure to check out our online Echinops offerings.

Cool colors for your summer plantings….

Icy white, pale pink and chartruese shades perk up our August borders, while effortlessly blending with just about any color imaginable. These composed hues provide our eyes with bright, yet soothing focal points and an overall beat-the-heat ambience! Some of our cool-down favorites include: Echinops, Sidalcea ‘Elsie Heugh’  Euphorbia mellifera, Kniphofia ‘Green Jade’, Phlox ‘David’ and Tanacetum ‘Isla Gold’. I’ve also featured a handful of richer-toned flowers that I discovered on my early morning walk today. We hope you’ll try sprinkling a few of these perennials amid your landscapes and enjoy both their tranquil or more spirited effects.

Happy August and Happy Digging from all of us Digging Dog plant wranglers!

 

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