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Lobelia (Cardinal Flower)
at Digging Dog

Including Lobelia ‘La Fresco’, Lobelia laxiflora, and Lobelia tupa

Lobelia

Lobelia

Cardinal Flower

In the dog days of August, just when the border is not looking so lively, this genus of colorful, stately selections rejuvenates the garden with spectacular leafy flowering spires, attracting crowds of eager hummingbirds. Perfect in meadow plantings, these sturdy herbaceous perennials appreciate a well drained site, a light winter mulching, rich, moist soils and partial shade in warm climates, except for Lobelia tupa and Lobelia laxiflora, which like it hot and on the dry side.

View a slideshow of plant images from this genus


Lobelia ‘Grape Knee-Hi’  full sun  partial shade
Cardinal Flower
Lobelia  Grape Knee-Hi

Have you grown weary of Lobelias, whose lovely blooms reside above a rather untidy base? If so, you may be interested in Dan Heim’s brilliant solution to this age-old challenge—a small-statured L. cardinalis and L. syphilitic backcross, known as ‘Grape Knee-Hi’. Painted with vibrant deep purple hues, the long lasting and freely flowering, tightset spikes crown upright stalks and good-looking compact foliage that stands on its own all season long.

Blooms July-August

Size: 2' 0" high x 15" wide; hardy to zone 6.

Lobelia ‘Grape Knee-Hi’ (P-1190)
SOLD OUT!
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Lobelia ‘La Fresco’  full sun  partial shade
Lobelia  La Fresco

We have Thurman Maness to thank for this lovely cultivar, another cross between Lobelia cardinalis and Lobelia siphilitica. A dense tower of dusky plum flowers creates a pleasing blend of muted purples when planted with Verbena hastata and Astrantia ‘Lars’.

Blooms August–early October.

Size: 2-1/2'–3' 0" high x 18" wide; hardy to zone 4.

Lobelia ‘La Fresco’ (P-0765)
Each $7.50
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Lobelia laxiflora  full sun
Mexican Lobelia
Lobelia laxiflora

A lush-looking, bushy perennial capable of enduring considerable neglect, this impressive Lobelia plays host to festive bicolored blooms. Spreading by underground rhizomes, a close thicket of slender, yet sturdy, red-tinted stems strikingly set off narrow and lustrous, pointed green leaves that extend 2 to 4 in. Slim, 2 in. long red tubes are loosely clustered at shoot tips, while each bright-hued flower flares to reveal a sunny yellow throat.

Hailing from Arizona and Mexico, the Mexican Lobelia entices gardeners and hummingbirds alike with nectar-rich blossoms, can tolerate some shade, but looks its best in sunny, dry sites and has been reputed to possess anti-inflammatory alkaloids.

Blooms June–September.

Size: 2' 0"–2-1/2' high x 2' 0"–3' 0" wide; hardy to zone 8.

Lobelia laxiflora (P-1298)
Each $7.50
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Lobelia siphilitica ‘White Candles’  full sun  partial shade

Dressed in a crisp snowy white, the profusely flowered tapers of this Lobelia stand in sharp relief to its dark green foliage. A newly selected form of our U.S. native, ‘White Candles’s small, compact stature keeps its lift all season, lending a clean and classic look, especially when partnered with Geranium ‘Orion’.

Blooms July–August.

Size: 18"–20" high x 18" wide; hardy to zone 5.

Lobelia siphilitica ‘White Candles’ (P-1237)
SOLD OUT!
Email me when this plant is available


Lobelia tupa  full sun
Lobelia tupa Lobelia tupa

The lushly tropical color scheme of this somewhat tender Chilean native is alluring. Cloaked in broad and pointed, pale green, felted foliage, each soaring, purple-tinged stem is crowned with a large, tapering raceme of warm, brick-red blossoms. From the swollen base of each flower, a clawlike lower lip curls under and a tuft of gray stamens extends upward.

A perennial of nearly monumental stature, associate Lobelia tupa with Melianthus, Muhlenbergia and Morina longifolia for a dynamic melange of color and shape in the border.

Blooms July–October.

Size: 6' 0"–8' 0" high x 3' 0"–4' 0" wide; hardy to zone 8.


Lobelia tupa (P-1119)
Each $8.75
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Latest News

Current Staff's Favorite Plant

staff favorite plant
"

Sterling Spring blooming shrubs, plus head-turning Perennials.

Here’s the tall and short of it…

Sterling spring blooming shrubs, all dressed in classy green leaves and crisp white flowers. Viburnum plicatum ‘Summer Snowflake’ is the largest of our featured shrubs, fashioning graceful somewhat horizontal branches adorned with snowy lace caps. Cultivated since 1868, well-loved Spiraea x vanhouttei makes a shapely low maintenance addition to sunny mixed borders, while smaller-statured Deutzia gracilis ‘Nikko' offers a galaxy of dainty white blooms perfect for the rockery, nestled along steps or in a container.

Head turning Perennials

Nearly 65” of rain coupled with chilly spring days spawned a remarkable surge of lush foliar growth, plus spectacular long-lasting flowers in our nursery & garden this year. Spring is always such an exciting time as we watch the multitude of leaves, buds and blooms that seemingly unfurl over night plus the numerous new shoots stretching skyward. Dicentra ‘Gold Heart’s delicate golden foliage glows in dappled shady niches, while the dark leaves of Eupatorium ‘Chocolate’, Astrantia ‘Moulin Rouge's exquisite domes, and the richly colored Sedum ‘Jose Aubergine’ promise to turn more than a few heads in your garden. Perhaps you could let Campanula ‘Blue Waterfall’ cascade down your garden steps, or brighten up a sunny bed with Geum ‘Prinses Juliana’. We hope you’ll make room for a few of these shrubs & perennials. Our extensive display borders which surround the nursery are now open through Colombus Day weekend. Our first guided Saturday Stroll is June 24th., followed by July 15th & 29th. We hope you’ll come visit us this summer.

Digging Dog's June 2017 Newsletter Link"

More news, events, and favorite plants

Customer Comment:

“My order arrived and I was completely blown away at how beautiful your plants are.  The quality is out of this world!!!! ... I cannot convey to you how thrilled I am.  I have told all my fellow master gardeners about you.”

~Mary in Oregon


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