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Black Adder Agastache

Agastache x 'Black Adder'

$12.79
$12.79 $15.99
per Plant - 5" Deep Pot
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ZONES  6-9 | Good to grow! Zone
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• Agastache x 'Black Adder' (Giant Hyssop) is a long-blooming cultivar that boasts plentiful periwinkle flower spikes all summer long
• Plant en masse to create large swaths of color and texture - the fragrant blooms are a pollinator magnet, attracting hummingbirds, butterflies, bees, and beneficial insects
• Like most Agastaches, 'Black Adder' is drought-tolerant and low-maintenance, requiring minimal care once established

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Description

Like most Agastaches, ‘Black Adder’ is a low-maintenance, drought-tolerant pollinator magnet. What sets it apart are the large bottlebrush terminal spikes packed with fragrant flowers. Long blooming, its spikey flowers add color, fragrance, and spunky texture to a garden setting. Blue-green foliage adds a lovely anise scent as well. A cross between A. rugosa and A. foeniculum, 'Black Adder' attracts hummingbirds, butterflies, bees, and other beneficial insects. Drought and heat-tolerant once established, plant en masse or mix into a perennial bed or rock garden, where it will flower from summer to fall, an excellent choice for late-season color. They make nice cut and dried flowers as well.

Planting & Care

Tips for growing Agastache

Agastache are sun loving plants with aromatic foliage and flowers. They bloom from mid-summer into early fall and are resistant to rabbits and deer.

Agastache need lean, well-drained soils, prefer gravel mulches, and appreciate deep but infrequent watering after their second growing season

  1. Provide a fast draining soil that's naturally low in fertility, Don't plant into clay soils.
  2. Plant in full hot sun.
  3. Just a few handfuls of compost in the planting hole is enough. Don't plant into a rich, highly amended soil..
  4. Fertilize the Agastache just once in fall with Yum Yum Mix.
  5. New transplants need regular irrigation their first growing season to establish themselves. Watering can be reduced greatly during the second growing season when the plants have matured.

To improve winter-hardiness, and encourage re-seeding, leave the stems intact over the winter. In mid-spring, remove old stems just above the new foliage, about 4 or 5 inches above ground level.

If your conditions don't lend themselves to growing Agastache in your garden, they do well planted in containers.

More in-depth guidance for growing Agastache:Agastache Growing Tips, Agastache: Super-Stars of the Perennial World, and All About Planting Agastache.

Shipping

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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 fall-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

Perennials and fall-planted bulbs are shipped at the proper planting time for your Growing Zone. Perennial and fall-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment and all items are shipping to the same address, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you have any questions, please call Customer Service at (801) 769-0300 or contact us by email or chat.

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Key Features

Light Requirements

  • Full Sun

Bloom Time

Summer to fall

Advantages

  • Bee Friendly
  • Attracts Butterflies
  • Attracts Hummingbirds
  • Attracts Beneficial Insects
  • Mass Plantings
  • Long Bloom Time
  • Autumn Interest
  • Easy To Grow
  • Dried Flowers
  • Fragrant
  • Rock Gardens
  • Deer Resistant

Tolerates

  • Occasional Drought

Additional information

Mature Height

24-36" tall

Mature Spread

18-24" wide

Soil Type

  • Sandy Soil
  • Compost Enriched Garden Loam Soil

Soil Moisture

  • Average
  • Waterwise

Planting Time

  • Fall

Native To

North America

Growing Zones

  • Zone 6
  • Zone 7
  • Zone 8
  • Zone 9

Neonicotinoid Free

Yes

Ships As

Potted Plant

Can Send To PO Box

No
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Overall rating: 5.0 / 5 from 2 reviews.

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Reviews

reliable!

"These arrived healthy and strong. Planted last fall according to instructions and they are growing beautifully! They're tall, a beautiful color, and don't ask for much water or very good soil."

— Beejay (5/5)

Too Early Yet

"They arrived in a very healthy condition. I won't be able to tell how successful they are until the weather heats up a bit, but so far, they seem to be doing well. One has some blooms already. Our winters in the PNW have been extremely icy during the last two years, and other agastache have made it through, so I have high hope for these as well."

— 1chickafina (5/5)

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