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New/Featured for 2019

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Partial Shade

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Drought Tolerant

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(PPAF) = Propagation of this plant prohibited without a license.

Hardiness Zone Map


Nepeta

Nepeta

Catmint

Sometime around May a certain fragrance tells us that it’s time for sunny days and warm weather. It’s Nepeta! Catmint, as it is commonly called, is a free bloomer whose billowy mounds of blue-violet, lavender, pink or white flowers are as opulent as its aromatic foliage. Supposedly, this herb renders timid people fierce, and the botanist Tournefort tells of a hangman who couldn’t cut the mustard “until he chewed a little catmint root.” Have some Loosestrife around in case things get out of hand. Cut back in July for an encore in the fall.

Big, bright blue-violet tubular blooms with an extended white freckled lower lip and smoky purple calyxes bedeck showy 6 in. floral spires. Inheriting the vigor of its yunnanensis parent, yet maintaining a neat compact habit, branched upright stems emerge from underground stolons and sprout attractive notched grayish green leaves.

Barely fazed by heat, humidity and sporadic dry periods, ‘Blue Dragon’s long blooming flowers make a spectacular addition to a summer bouquet. (PPAF)

Blooms June – mid-September.

Size: 2-1/2' – 3' 0" high x 2-1/2' wide.

Hardy to zone 6.

<i>Nepeta faassenii</i> ‘Kit Kat’

A well-mannered newcomer, ‘Kit Kat’ keeps a compact, low-to-the-ground profile. Pint-sized leaves shape the gray-green clump that projects cool tones especially when small but numerous terminal clusters of lavender-blue flowers unfurl all summer long.

Perfect for diminishing hard edges along paths, steps or in the rockery, this floriferous Nepeta easily melds with Stachys ‘Silky Fleece’ and Scutellaria ‘Smoky Hills’.

Blooms May–mid-October.

Size: 15" high x 15" wide.

Hardy to zone 5.

Praised for its myriad periwinkle-blue blooms with smoky purple calyces and fast growing, low compact habit, this 2013 introduction came about when Kevin Hurd crossed Nepeta ‘Six Hills Giant’ and Nepeta ‘Eldean’. Prim, petite serrated grayish green leaves clothe a spry rounded mound that requires little maintenance and can edge a perennial border, squeeze between stone work or grace an herb garden. (pp#24,788)

Blooms May|ndash;September

Size: 18" high x 18" – 2-1/2' wide.

Hardy to zone 3.

David Salmon of High Country Gardens recently selected this long-blooming, tough-as-nails Catmint for its markedly blue flower spikes. Long, tapered gray-green leaves comprise a tidy, low growing mound that is covered with blossoms in late spring, and if trimmed back, bestows a second showing in late summer. Vigorous and drought tolerant, ‘Select Blue’ can be paired with another floriferous perennial, Erigeron ‘Bountiful’ to create a colorful union.

Blooms May|ndash;August

Size: 15" high x 18" wide.

Hardy to zone 4.

<i>Nepeta grandiflora</i> ‘Dawn to Dusk’

One of the best pink Nepetas, ‘Dawn to Dusk’ produces an open mound of soft, sage-green foliage. Smoky violet calyxes make the color combination even more soothing.

Blooms June–September.

Size: 2-1/2' high x 2-1/2' wide.

Hardy to zone 4.

<i>Nepeta grandiflora</i> ‘Wild Cat’

Awarded four stars in the Chicago Botanical Garden’s Nepeta Performance Trials, this exciting new Catmint broadcasts lively purplish red calyxes that can be enjoyed long after its blossoms have faded. The lush sage-green leaves create a vigorous understory for quantities of small, dark blue-violet tubes clustered on good-sized flower heads. Staged midborder, the colorful display spans several months and blends easily with Sedum ‘Hab Gray’, while riding on tall upright stems.

Blooms mid-June – late September.

Size: 3' 0" high x 2' 0" wide.

Hardy to zone 5.

<i>Nepeta</i> x ‘Joanna Reed’

We recently acquired this distinctive, hard-to-find Nepeta from Stonehouse Nursery in Michigan. A naturally occurring cross between Nepeta sibirica and Nepeta faassenii, ‘Joanna Reed’s upright form boasts vibrantly colored clusters of flowers. Highlighted by pink throats, the iridescent blue-violet blooms garnish handsome gray-green foliage and harmonize with Lobelia tupa.

Blooms late May–September.

Size: 3' 0" high x 2' 0" wide.

Hardy to zone 5.

Nepeta latifolia (P-0763)

Each $8.00

AVAILABLE LATE SEPTEMBER 2019

The stately bearing of this tall growing upright Nepeta caught our eye some 25 years ago at a small British nursery located near Great Dixter. Long sturdy panicles of whorled, densely massed rosy lilac flowers crown a lush textural foundation of broad, serrated pewter-green foliage and stout branched stems. Its pastel hues can be teamed with Centaurea macrocephala, Caryopteris incana and Crocosmia ‘Honey Angels’ for a pleasing foliar medley and late season flower-power.

Blooms July–September

Size: 3' 0" – 3-1/2' high x 2' 0" wide.

Hardy to zone 6.

Bathed in restful hues, this seldom-offered Nepeta fashions a softly colored, large mound of good-sized, serrated, gray-green leaves and tall, branching spikes embellished with densely set lilac flowers. Blooming for months, ‘Longipes’ creates a pleasing pastel medley in the company of Papaver spicatum and Euphorbia myrsinites.

Blooms late May–July.

Size: 2' 0" high x 2' 0" – 2-1/2' wide.

Hardy to zone 5.

<i>Nepeta nervosa</i>

Despite its name, this outstanding Kashmiri native will give you nothing to be nervous about. With an upright and bushy stance, N. nervosa features handsome, deep green foliage that’s veined and somewhat linear in shape, accompanied by large dense clusters of dark blue flowers. Plant at the base of Buddleja crispa, and enjoy the strikingly classic contrast of blue and silver.

Blooms July–August.

Size: 12" – 18" high x 15" wide.

Hardy to zone 5.

Indigenous to northern Greece, Iran, Iraq and Lebanon, this stately Nepeta exhibits unique qualities, casting impressive vertical accents as straight 3 ft. tall branched stems soldier upward. The generous showing of small white flowers illuminates an attractive leafy green bed, shaped by notched, prominently veined good-sized foliage. N. nuda ssp. albiflora can be coupled with Gaura ‘White Heron’ for luminous color echoes as well as intriguing foliar contrast.

Blooms July-September

Size: 3' 0" – 4' 0" high x 2' 0" wide.

Hardy to zone 4.

<i>Nepeta parnassica</i>

A rather new introduction, Nepeta parnassica is tall growing. Attached to its brawny stems, sizable grayish green leafage lifts itself toward lush spikes of lilac-blue flowers and dark, wine-hued calyxes. This late bloomer’s height puts it midborder, where, backed by the concurrent blooms of Helianthus ‘Lemon Queen’, a late summer pleasure is yours for the viewing.

Blooms July–September.

Size: 4' 0" – 4-1/2' high x 2-1/2' wide.

Hardy to zone 5.

An upright Englishman standing taller and with less sprawl than N.x ‘Six Hills Giant’, ‘Pool Bank’s gray-green foliage gives way to tall branched spires decorated with bluish lavender blossoms, each nestled in a dusky mulberry-hued calyx. The tempered look of this Nepeta is effective for midborder drifts with Agastache ‘Firebird’ nearby.

Blooms July–September.

Size: 3' 0" high x 2-1/2' wide.

Hardy to zone 4.

A dogged constitution and compact good looks characterize this Plant Select offering. Flourishing in xeric conditions, the noteworthy ground hugging mound of well-branched stems and serrated dusty silver-green leaves gives way to deep lavender-colored flower spires nearly all season long. Nestle fine textured Little Trudy along a walkway, amid stairs, atop a wall or in the rock garden where she’ll make a composed companion for Oenothera ‘Fyrverkeri’. (PPAF)

Blooms May|#8211;September

Size: 8" – 10" high x 12" – 16" wide.

Hardy to zone 4.

‘Little Titch’ has such a small stature that even Nepeta ‘Superba’ is more upright. Its tightly packed ash-green leaves form a dense ground-level mass. Garnishing stem tips, small heads of rich blue-violet flowers faithfully unfurl until the end of summer. ‘Little Titch’ is delightful between rocks or right up front with Achillea ‘Hella Glashoff’ and Diascia ‘Coral Canyon’.

Blooms May|#8211;September

Size: 8" – 10" high x 15" wide.

Hardy to zone 5.

<i>Nepeta racemosa</i> ‘Superba’

A matlike habit and small leaves give ‘Superba’ a fine texture that sets it apart from other Nepetas. Contrast its compact carpet of gray-green foliage with a backdrop of Phygelius x ‘Pink Elf’.

Blooms May–October.

Size: 12" high x 15" wide.

Hardy to zone 5.

<i>Nepeta racemosa</i> ‘Walker|#8217;s Low’

This low mounding Catmint has a clean-cut look that persists throughout the summer, making it excellent for the front of the border. Deep lavender-blue flowers, some of the most vividly colored of the Nepetas we offer, harmonize beautifully with the blooms of Penstemon ‘Sunburst Amethyst’ and Eryngium amethystinum.

Blooms June|#8211;September

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

Hardy to zone 5.

This compact Nepeta bears blue flowers with just a hint of violet, and offers verdant foliage. Growing profusely, it forms a thick, low mound with a sumptuous play of color, texture and fragrance.

Blooms April–October.

Size: 12" high x 18" wide.

Hardy to zone 5.

Long after this species has bloomed you will remember its large, tubular, blue flowers highlighted by intensely aromatic, deep green foliage. With an upright form, ‘Souvenir d’ A. Chaudron’ makes a good companion for Origanum ‘Bristol Cross’ or Euphorbia rigida.

Blooms August–September.

Size: 18" high x 18" wide.

Hardy to zone 5.

<i>Nepeta</i> x ‘Six Hills Giant’

Both upright and billowy, this Nepeta is spectacular in drifts, sporting stems laden with lavender flowers. Its blossoms are held openly above its soft gray-green foliage. An old favorite here, ‘Six Hills Giant’ looks superb backed by Calamagrostis ‘Avalanche’, with its golden seed heads. Pink Geraniums are equally worthy companions.

Blooms April–September.

Size: 2-1/2' high x 3' 0" wide.

Hardy to zone 5.

A snowy divergence from the blue-violet hues typical of its family members, small white whorled flowers blanket a compact, soft-looking mound of serrated, gray-green leaves all summer. Well-suited for edging a path or border, Nepeta ‘Snowflake’ casts composed accents on neighbors like Origanum acutidens and Penstemon ‘Blue Midnight’.

Blooms June–August.

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

Zone 4/5.

Broadcasting vibrant blue tones, a profusion of large, loosely arranged plump cylinders house tubular blooms with darker fringed calyxes. Neat, serrated leaves make a handsome cover for the upright clumping stems that flourish in moist soil and dappled shade. Deadheading will keep the flowers coming.

Blooms June–August.

Size: 18" high x 18" – 2' 0" wide.

Hardy to zone 4.

<i>Nepeta subsessilis</i> ‘Cool Cat’

Icy spikes of white-specked lavender-blue flowers to soothe the senses on a hot afternoon are what this new, highly touted Nepeta has to offer. Compact straight-up stems are densely shrouded in dark green serrated leaves, making a tidy aromatic base for the prolific summer long display. Partner with Eryngium ‘Blue Jackpot’ and blue-flowered Anchusa and enjoy the cool-colored vignette.

Blooms June – September.

Size: 2' 0" – 2-1/2' high x 3' 0" wide.

Hardy to zone 4.

Found growing on shady, mountainous rocks or coastal cliffs in Japan, this species likes moist soil. Upright, clumping stems lined with serrated, lanceolate foliage provide a lush background for the fat, cylindrical spikes of long, trumpet-shaped clear pink flowers. Distinguished by eye catching dark burgundy floral bracts and larger, deep green leaves, ‘Sweet Dreams’ continues to bloom if deadheaded, and can be paired with Persicaria ‘Rosea’.

Blooms July–September.

Size: 18" high x 2' 0" – 2-1/2' wide.

Hardy to zone 4.

<i>Nepeta subsessilis</i> ‘Washfield’

Named for Elizabeth Strangman’s British nursery where it originated, ‘Washfield’ is regarded as the best subsessilis cultivar currently available. Adored by butterflies and bees, well-endowed, erect branching spikes house vibrant clusters of blue-violet tubular flowers, opening from small buds shrouded in dark calyxes. The bushy clump-forming base yields scented green foliage, which offsets gray-leafed plants to great effect and obliges heavier soil more so than most Catmints.

Blooms June – August.

Size: 18" high x 18" – 2' 0" wide.

Hardy to zone 4.

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Current Staff's Favorite Plant

Current Staff's Favorite Plant

Our featured plant: Crocosmia x crocosmiiflora ‘Honey Angels’

Colorful Crocosmias, Be Awed by your August garden, Saturday Strolls!

Click here to view our Late August 2019 Newsletter!

Colorful Crocosmias!

Crocosmias pack a punch of late summer color as our gardens transition into autumn. Their clustered tubular flowers populate the ends of gracefully arching spikes, which emerge from handsome sword-like foliage. Ranging from yellow, peach and orange to fiery red, their prismatic shades look exceptional with white flowering perennials such as Phlox ‘David’, Selinum wallichianum and Aster ‘Bridal Veil’, as well as the blue blossoms of Aconitum, Agapanthus ‘Storm Cloud’ or Aster ‘Twilight’. For fun you could create a hot border, blending them with Kniphofia, Helenium, Salvia and even other Crocosmia, plus be sure to include some in your next bouquet. Commonly referred to as Montbretia and hardy to Zone 6, they appreciate, good drainage, adequate water and some shade in scorching summer sun. Please feel free to check out our extensive collection of Crocosmia cultivars in the perennial section of our online catalog.

YES, it’s possible to be in awe of your late August garden….

At this point in the season, some areas in our gardens may appear a tad worn or lackluster. If you haven’t already done so, you may wish to cut back a few tired looking perennials, such as the Nepetas or Geraniums, so you can enjoy a fresh flourish of growth plus more blooms. Adequate moisture and an additional application of compost will also ensure late summer vigor. Incorporating plants that provide a bounty of flowers and alluring leaves in August and September helps buoy our spirits, and hopefully even inspire a little awe as we approach fall. Though the plants featured in this newsletter either promote a bold statement or possess more refined aspects, they equally caught my eye and made me pause to take a closer look. Perhaps they’ll spark a wondrous moment for you as well. All of us Digging Dog plant wranglers wish you Happy Digging!

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