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USDA Plant Hardiness Zones

To help gardeners understand which plants will grow well for them, the entire USA has been segmented into ‘Plant Hardiness Zones’. Knowing your zone number is helpful when shopping for plants because:

  • Cold-area gardeners can avoid buying plants that simply won’t survive their lowest winter temperatures.
  • Warm-area gardeners can steer clear of plants that need a period of cold weather in order to bloom again.
Find your Plant Hardiness Zone here.

Brunnera Jack Frost

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This stunning Brunnera has heart-shaped, silver-green foliage with green veins. Jack Frost is the perennial of the year for 2012. (Brunnera macrophylla)

Shipping Most orders ship within 48 hours or less. Learn More…
Zones 3 - 8
Deer Resistant
Deer Resistant
Plants for Small Spaces
Plants for Small Spaces
Light Requirements
Full Shade
Full Shade
Mature Plant Size 12-16" tall, 12-15" wide
Bloom Time Mid to late spring
Size Bag of 1

Plant Information

The Brunnera Jack Frost was voted Perennial of The Year for 2012, by the Perennial Plant Association.

Brunnera (common name Siberian bugloss) forms an attractive mound of rough-textured, heart-shaped leaves. In spring, clusters of small, light blue flowers appear, perched on airy, branched stems held high above the foliage. The plant prefers moist, organically rich soil and medium to full shade. Brunnera makes an excellent ground cover in moist, shady spots, where it will spread by rhizomes and self-sow to slowly fill in an area. Ideal for woodland gardens and alongside streams and ponds -- anywhere the soil remains consistently moist.

Also good for large containers, where you can enjoy the forget-me-not-like flowers up close and snip a few stems to add to a cut flower arrangement.

Common Name Heartleaf Alkanet
Botanical Name Brunnera macrophylla
Zones 3, 4, 5, 6, 7, 8
Light Requirements Full Shade
Flower Color Blue
Mature Height 12-16" tall
Estimated Mature Spread 12-15" wide
Bloom Time Mid to late spring
Planting Depth Crown of plant should rest just at or above the soil surface after watering in.
Ships As Bare Root
Foliage Color Gray-Green
Foliage Heart shaped, silver-green foliage with green veins
Planting Time Spring / Summer
Soil Type Loamy Soil, Moist/Wet Soil
Soil Moisture Average, Moist/Wet, Well Draining
Advantages Deer Resistant, Groundcover, Plants for Small Spaces
Ships to Hawaii, Alaska & Canada No


Most orders ship within 48 hours or less.

As soon as your order is placed you will receive an order confirmation email that will include your shipping information. We ship perennials and spring-planted bulbs at the proper planting time for your hardiness zone. Perennials 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 (877) 309-7333 or contact us by email.

You will receive a second email the day your order ships telling you how it has been sent. Your order is scheduled to arrive at your door, fresh and ready to plant, usually within 3-5 days of leaving our warehouse, depending on your shipping address. We pack our plants to withstand up to 10 days in transit, in the event transit is delayed. We cannot guarantee arrival on a specific day. Please make sure to open your package upon receipt and follow the instructions included.

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Reviewsby PowerReviews


by PowerReviews
American MeadowsBrunnera Jack Frost

(based on 2 reviews)

Ratings Distribution

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Reviewed by 2 customers

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Issue with varie gated leaves


from Blacksburg, VA

Verified Reviewer

Comments about American Meadows Brunnera Jack Frost:

I was just told that a plant with variegated leaves may not always have variegated leaves. A different variety of brunnera with variegated leaves that I purchased a few years ago from American Meadows no longer has variegated leaves. They no longer carry this variety. Since more than a year has passed, their warranty no longer is valid. I am not a happy brunnera customer.


Beautiful plant


from Idaho Falls, Id

Verified Reviewer


  • Stunning Border Plant


    Best Uses

    • Borders

    Comments about American Meadows Brunnera Jack Frost:

    Very happy with this purchase.

    • Was this a gift?:
    • No

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    Q & A

    Plant With These:

    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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