Rosmarinus officinalis Alcalde Cold Hardy

Alcalde Cold Hardy Rosemary

An upright growing Rosemary, 'Alcalde Cold Hardy' is a very cold hardy selection with wide, olive green leaves and a mid-spring display of pale blue flowers. Drought resistant/drought tolerant plant (xeric).
Zones6 - 9
Advantages
Evergreen
Edible
Light Requirements
Full Sun
Mature Height30-36" tall
Mature Spread24-36" wide
Bloom TimeEarly summer to fall
ShippingNo longer available this season. Learn More…
SizePlant - 5" Deep Pot
SKUHC014620

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).

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SKU
HC014620

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Details
30-36" x 24-36" wide (cutting propagated). Alcalde Cold Hardy is very cold hardy, upright growing Rosemary found growing in a northern NM garden where it has withstood years of sub-zero winters and intense, high elevation summer sun. With its pale blue flowers and thick, olive- green leaves, this is both a beautiful xeric landscape plant and excellent culinary herb. Brought into cultivation by agronomist Charles Martin.

Learn More About Waterwise Perennial Herbs

More Information
SKUHC014620
Item Package Size
Plant - 5" Deep Pot
Common Name
Alcalde Cold Hardy Rosemary
Botanical Name
Rosmarinus officinalis Alcalde Cold Hardy
Zones
6, 7, 8, 9
Light Requirements
Full Sun
Flower Color
Blue
Mature Height
30-36" tall
Mature Spread
24-36" wide
Bloom Time
Early summer to fall
Ships As
Potted Plant
Evergreen Foliage
Yes
Advantages
Evergreen, Edible
Planting Time
Fall
Ships To 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.
Shipping

No longer available this season.

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat.  The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

Perennials and spring-planted bulbs are shipped at the proper planting time for your hardiness zone. Perennial and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you need express shipping or have any questions, please call Customer Service toll-free at (800) 925-9387 or contact us by email.

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