digging dog nursery mendocino coast   garden perennials from digging dog nursery

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!
Email me when this plant is available


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

Our featured plant: Hydrangea quercifolia 'Sikes Dwarf'

Perennials that cool down a hot summer day, refreshing foliage, soothing blooms, last chance to take advantage of our summer sale!

Bring sparkling beauty to your August plantings

Perhaps you’re looking for some soothing floral or foliar accents on a hot summer day! We’ve found that snowy white, clear pink, pale yellow and deep blue blooms coupled with silver, bluish green or emerald-toned leaves become refreshing counterpoints to warmer-hued flowers. They offer a place where your eye can rest, much like cleansing your palette when tasting wine. These shades meld the spicy-colored flowers of many Achillea, Crocosmia, Dahlia, Geum, Helenium, Kniphofia, Rudbeckia and Salvia.

Our next guided Saturday Strolls is August 19th., followed by September 16th & October 7th. We hope you’ll come visit us this summer.

Digging Dog's Early August 2017 Newsletter Link

More news, events, and favorite plants

Customer Comment:

“This has been a very satisfying experience.”

~J. in California


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