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Hardiness Zone Map


Phlomis

Jerusalem Sage

This genus belongs to the Mint family and includes about 100 perennials as well as subshrubs from the Mediterranean and western Asia. Drought resistant and hardy, many of the species will thrive in warm sunny sites and dry woodland edges. Ornamental whorls of purple, pink or yellow blooms open in the summer, providing long-lasting stems and flower clusters for fresh and dried decoration in the garden or kitchen.

<i>Phlomis anatolica</i> ‘Lloyd's Variety’

Brightened by white heavily veined undersides and light fuzzy stems, thick heart-shaped pewter green leaves craft a handsome flanneled appearance. Stiff swarthy stalks thrust upward, interspersed with large long lasting showy whorls of spicy scented helmet-like, rich yellow flowers. This rugged shrubby perennial develops a somewhat woody foundation over time, and always brings fulgent accents to hot exposed slopes, wind-swept seaside plantings or any other sharp-draining sunny locale.

Blooms June–September.

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

Hardy to zone 7.

<i>Phlomis cashmeriana</i>

With a rugged constitution yet stately stature, this enduring Himalayan denizen spawns 12 in. long, spade-shaped gray-green leaves that emphasize a felted aspect, scalloped margins plus luminous silver undersides. Stout woolly stems shoulder the large whorled clusters of tubular lilac-pink blooms above a soft-looking bushy foundation. Adored by birds, bees and butterflies, Phlomis cashmeriana remains evergreen in milder climates, while appreciating proper air circulation, sunshine galore and sharp-draining soil.

Blooms JuneľAugust

Size: 2' 0" – 3' 0" high x 18" – 2' 0" wide.

Hardy to zone 5.

<i>Phlomis</i> ‘Edward Bowles’

Launched in 1967 by Hilliers, a celebrated British nursery that supposedly received the namesake’s own garden seed, this grand hard-to-find Phlomis is an evergreen hybrid between Phlomis fruticosa and Phlomis russeliana. Commendable even on frosty winter mornings, the 6 to 10 in. tall spires are studded with large clustered snapdragon-like blooms composed of cream-colored hoods plus lemon-yellow lips. Daring spade-shaped green leaves, flashing felted finishes and silver undersides, attire staunch square upright stems beneath a colorful bumble-bee haven. Versatile, vigorous and dependable, deer-resistant ‘Edward Bowles’s can be added to mixed borders or water thrifty plantings.

Blooms June–early October

Size: 4' 0" high x 4' 0" wide.

Hardy to zone 7.

<i>Phlomis fruticosa</i> <i>Phlomis fruticosa</i>

These bright yellow flowers bloom in a series of ball-like clusters known as verticillasters along stout stems and above felted, gray-green foliage. Used as a specimen or blended with Nepeta ‘Walker’s Low’ or Wood Oats, Phlomis fruticosa will provide bold color and form.

Blooms June–August.

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

Hardy to zone 6.

<i>Phlomis lanata</i>

A golden aura infuses the small gray-green woolly foliage of this soft-looking 2002 AGM winner. Endemic to Crete, long-lived Phlomis lanata sports yellow hooded flowers, rising in whorled widely spaced tiers above a low compact foundation that wards off deer, rabbits and drought. Its stalwart good looks can be intermingled with Mediterranean neighbors such as Rosemary, Rock Roses and Eryngiums.

Blooms June–September

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

Hardy to zone 7.

<i>Phlomis russeliana</i>

Asserting an architectural profile, thick straight stems broadcast separate whorls of hooded butter-yellow blooms. Its stalwart beauty even perseveres through winter—the stalks look equally impressive whether fresh or spent as they stand above large and broad, heart-shaped olive-green leaves. The fuzzy foliage forms a plush low growing, evergreen cover that keeps those pesky weeds at bay. In our garden, Phlomis russeliana casts dashing accents along a pathway, assorting with Aster ‘Fellowship’ and Molinias.

Blooms JuneľSeptember

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

Hardy to zone 4.

Phlomis tuberosa
 Full Sun  Partial Shade  New Plant
<i>Phlomis tuberosa</i>

Distinguished by an AGM and the unusual small potato-like tubers sprouting from its roots, this exceptional Phlomis is adorned with hooded dusty-lilac blossoms, nestled within reddish calyxes, and sturdy deep crimson-tinged flower stalks. Large, toothed arrow-shaped green foliage lends an appealing texture, while grasses and Lavenders make good company.

Blooms MayľJune

Size: 3' 0" – 4' 0" high x 12" wide.

Zone 5/6.

With arrow-shaped lush green leaves, lustrous burgundy stalks and tiered wreaths of rosy-lilac tubular flowers on statuesque stems, this well-mannered perennial adds dignity to the landscape. The toothed downy leaves forge a robust bushy base that’s semievergreen in many locales and relatively drought tolerant. Equally at home in a formal setting or a meadow planting, versatile ‘Amazone’ can be planted amid Stachys ‘Superba’ and Salvia ‘Amethyst’ for a fantastic purple and pink mélange.

Blooms JuneľAugust

Size: 4' 0" – 5' 0" high x 2' 0" – 3' 0" wide.

Zone 4/5.

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Current Staff's Favorite Plant

Current Staff's Favorite Plant

Our feature plant: Primula vulgaris ssp. sibthorpii

Precious Primulas, Prized Pulmonarias and Fabulous Foliage!

Primulas offer elaborately-crafted colorful blooms in varied shapes,……

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Prized Pulmonarias……

One of the earliest perennials to bloom, you can be picking their enchanting urn-shaped flowers in February while the rest of the garden still slumbers. Many cultivars showcase an array of mercury-hued dapples, speckles and spots, while others sport solid pewter sheens or striking silver streaks. Easy-to-grow Pulmonarias prefer the lacy light of a woodland setting plus cool moist soil. Our newsletter also includes a handful of other shade-loving perennials that promise alluring foliage. Many of these perennials can be partnered with Pulmonarias for intriguing foliar contrast. You may wish to check out our online Pulmonaria offerings.

All of us plant and paper wranglers wish you good health and happy digging!

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