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
Easy To Grow
Bee Friendly
Deer Resistant
Rabbit Resistant
Low Maintenance
Fragrant
Good For Cut Flowers
Good For Containers
Evergreen
Edible
Light Requirements
Full Sun
Annual Rainfall
20 to 30"
30 to 40" (with care)
Mature Height30-36" tall
Mature Spread24-36" wide
Bloom TimeEarly summer to fall
ShippingNo longer available this season. Learn More…
SizePlant - 5" 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" Pot
Common Name
Alcalde Cold Hardy Rosemary
Botanical Name
Rosmarinus officinalis Alcalde Cold Hardy
Zones
6, 7, 8, 9
Light Requirements
Full Sun
Mature Height
30-36" tall
Mature Spread
24-36" wide
Bloom Time
Early summer to fall
Ships As
Potted Plant
Evergreen Foliage
Yes
Soil Type
Low Fertility Soil, Well-Drained Soil
Soil Moisture
Drought Resistant / Waterwise
Amount Of Rain
20 to 30", 30 to 40" (with care)
Advantages
Easy To Grow, Bee Friendly, Deer Resistant, Rabbit Resistant, Low Maintenance, Fragrant, Good For Cut Flowers, Good For Containers, Evergreen, Edible
Ideal Region
Anywhere In The US
Planting Time
Spring / Summer, Fall
Item Unit Of Measure
Plant
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.

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