Rosmarinus officinalis Irene

Irene Rosemary

  • Blue Rosmarinus officinalis Irene, Rosmarinus officinalis Irene, Irene Rosemary



Irene is the best spreading Rosemary notable for its profuse display of bright blue flowers. The plant has a nice mounding habit and cascades gracefully over rocks, walls and raised beds. Drought resistant/drought tolerant plant (xeric).

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Zones 8 - 10
Deer Resistant
Deer Resistant
Bee Friendly
Bee Friendly
Rabbit Resistant
Rabbit Resistant
Plants for Small Spaces
Light Requirements
Full Sun
Full Sun
Annual Rainfall
Less than 10" (with irrigation)
10 to 20"
20 to 30"
30 to 40" (with care)
Bloom Time Late spring to early summer
Shipping Shipping begins in late February based on ground temperatures, warmest zones first. More shipping info Learn More…
Size Plant - 5" deep pot
SKU 82674


12-24" tall x 4' wide (cutting propagated). This is a superior selection of Rosemary "Prostratus" discovered by Phillip Johnson. He spotted it as a volunteer seedling in a northern CA landscape. "Irene" has nice medium green leaves and a low mounding habit with branches that will trail over walls and containers. Its strong blue-violet flowers come into color in early spring and are the highlight of this plant as they are larger, bluer and more profuse than any other trailing Rosemary. Fantastic for pots and hanging baskets! (cv:Renzels' P.P 9124)

Learn More About Waterwise Perennial Herbs

SKU 82674
Common Name Irene Rosemary
Botanical Name Rosmarinus officinalis Irene
Zones 8, 9, 10
Light Requirements Full Sun
Flower Color Blue
Mature Height 12-24" tall
Mature Spread 4' wide
Bloom Time Late spring to early summer
Ships As Potted Plant
Evergreen Yes
Planting Time Spring / Summer, Fall
Soil Moisture Drought Resistant / Waterwise
Amount of Rain Less than 10" (with irrigation), 10 to 20", 20 to 30", 30 to 40" (with care)
Advantages Deer Resistant, Bee Friendly, Rabbit Resistant, Evergreen, Plants for Small Spaces
Ideal Region Anywhere In The US, Hot Desert, Coastal California
Neonicotinoid-Free Yes - Learn More
Ships to Hawaii, Alaska & Canada No

Planting Guides

To get established in USDA zones 5 & 6, Rosemary must be planted in spring or early summer, not in the fall. Protect your new plants over their first winter or two in your garden. Cover each plant with a generous pile of clean straw or pine needles. This allows the plant's crown (junction of root and branches) to mature and obtain maximum cold hardiness.
View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.


Plant Shipping: Buy now and we will ship your order at the ideal planting time for your region. Spring-Planted Perennial and Bulb orders will ship from February 27-June 30, warmest zones first.

Most plant and bulb orders arrive within 2-6 days, or less, of leaving our greenhouses in Colorado. This prompt delivery is provided without additional express charges.

Grass Plugs Will ship at planting time in spring, beginning in late February.

Wildflower Seed & Grass Seed Orders ship within 2-3 days.

Standard shipping costs are $4.99 and up, depending on the size of the order.

Make Fast Even Faster: For ‘Rush’ same week delivery, please call customer service at 800-925-9387.

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Q & A

Suggested Companion Plants:

USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

Find Your Planting Zone:

Enter your Zip Code to find your USDA Planting Zone

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