Purple Haze Hyssop

As low as $39.59 was $59.99
Availability: In stock

A Giant Hyssop with lovely flower spikes in dreamy purple that pollinators and hummingbirds adore, the Purple Haze Hyssop (Agastache x 'Purple Haze') will add fine textured hazy purple color on a grand scale for your garden enjoyment! This cold-hardy Hummingbird Mint variety blooms big and doesn't stop blooming until frost in some areas!

Large growing summer-long display of long, thin flower spikes covered with dark blue-violet flowers. The pollinators will adore these blooms as much as you will! Backed by mounds of gray-green foliage that has a wonderfully minty licorice scent, and the showy flower spikes display all summer into the autumn!

Agastache are generally drought-tolerant plants, but Purple Haze Hyssop is unusually more moisture tolerant! Making it a good choice in moister climates and areas that other Hyssop struggle in. Hardy throughout USDA growing zones 6 through 10, Purple Haze can grow to 30-36 inches in height and form rounded mounds 18-24 inches wide.

Planting and Application:

Purple Haze Hyssop is a fantastic backdrop plant and adds vertical punctuation throughout the Perennial and Cottage borders! The purple blooms turn any garden into a cutting and pollinator garden! Hyssop is fantastic for late-season accents around poolside and seating area plantings - both in the ground or in colorful containers! These sunny blooms just won’t quit! Add pots around a balcony so that the same mounding growth makes Agastache perfect in larger pots and planters as upright color that defies the sun!

Hyssop perennials not only look terrific, but they are also a vital nectar resource for beneficial pollinators and our precious native bee populations. No prairie planting or Butterfly Garden is complete without an Anise Hyssop and migrating pollinators and Hummingbirds can get their fill of nectar for the journey!

Partner these wand-like flowers with other Hyssops for a varied height mixed-perennials display! Or mix with other perennials of all kinds. Pair with blue, purple, and pink flowers, coral and peach, and white and orange flowers! Perfect facer plants for large or small shrubs to hide their bare lower stems, and adds fine-textured filler elements with orange, coral, white, or pink Roses!

Don't forget to get one for yourself as a fragrant addition to a Sensory garden, add to a Cutting Garden for colorful bouquets all growing season, or bring butterflies to your Cottage Garden. These back-of-the-garden accents look great all season long.

  • Gorgeous Blue-Violet Flower Spikes
  • Minty-Licorice Scented Gray-Green Foliage
  • Pollinator & Hummingbirds Magnet
  • Long-Lasting, Late-Season Blossoms
  • Beds and Borders, Cut Flowers & Pollinator Gardens & Groundcover

#ProPlantTips for Care:

Generally deer and rabbit-resistant, and adaptable, this Agastache is a low-maintenance flowering ornamental that thrives in full sun locations. Appreciating the drying power of the morning sun to keep the scented foliage healthy and mildew-free!

Plant Hyssops in very well-drained soil with moderate moisture, Purple Haze tolerates more moisture than others in the family. It has the best flowering with a regular schedule of supplemental water. Deadhead to encourage rebloom and keep the plant neat and tidy. Prune back the stems in late fall, mulch the crown well, and water in well for the winter.

  • Loves Full Sun
  • Best in Very Well-Drained Soil
  • Regular & Moderate Moisture Needs
  • Widely Adaptable
  • Rarely Damaged by Deer

Purple Haze Hyssop is just the big bold flowers your garden and garden pollinators need this year! Add fragrance and height to your landscape with these wonderful plants! Order yours today at NatureHills.com!

Buying Options for Plants

Nature Hills sells a large variety of plants with several options available. Plants are offered in both potted containers and as dormant bare root without soil. Here is a helpful resource to understand your options as you create a beautiful landscape with help from Nature Hills.

Ever wonder what a larger plant will mean for your landscape? Container Sizes are really all about the age of the plant!

Seasonally, Nature Hills offers hand selected, high quality bare root trees, shrubs and perennials. Bare root plants are sold by height from the top of the root system to the top of the plant. Plants may be taller than the height minimums.

  • Popular sizes of select trees are 1 foot, 2 feet, 3 feet, etc.
  • Popular sizes of select bare root plants is 1 foot, 18 inches, etc.

Nature Hills Container Size by Volume

Keep in mind, specific varieties and different growing conditions can affect the rate at which plants grow. Variations in size may occur.

Young Plants to 18 Months
Size Volume
2"x2"x3" Ranges from .18 to .21 dry quarts / .198 to .23 dry liters in volume
4.5" Container Equal to .65 dry quart / .72 dry liter in volume
Sprinter Pot Equal to .63 dry quart / .69 dry liter in volume
4" Container Ranges from .31 to .87 / .35 to .96 dry liter in volume
6" Container Equal to 1.4 dry quarts / 1.59 dry liters in volume
1 Quart Equal to 1 dry quart / 1.1 dry liter in volume
5.5" Container Equal to 1.89 of a dry quart / 2.08 dry liters in volume
4"x4"x5" Ranges from .8 to 1.1 dry quarts / .88 to 1.2 dry liters in volume
4"x4"x6" Ranges from 1.0 to 1.3 dry quarts / 1.1 to 1.41 dry liters in volume
4"x4"x9" Ranges from 1.1 to 2.1 dry quarts / 1.2 to 2.3 dry liters in volume
4"x4"x10" Ranges from 1.7 to 2.3 dry quart / 1.87 to 2.53 dry liters in volume
Plants 18 Months - 2.5 Years Old
Size Volume
2 Quart Equal to 2 dry quarts / 2.2 dry liters in volume
#1 Container Ranges from 2.26 to 3.73 dry quarts / 2.49 to 4.11 dry liters in volume
5"x5"x12" Equal to 3.5 to 4.3 dry quarts / 3.85 to 4.74 dry liters in volume
Plants 2 - 4 Years Old
Size Volume
#2 Container Ranges from 1.19 to 1.76 dry gallons / 5.24 to 7.75 dry liters in volume
#3 Container Ranges from 2.32 to 2.76 dry gallons / 10.22 to 12.16 dry liters in volume
Plants 3 - 5 Years Old
Size Volume
#5 Container Ranges from 2.92 to 4.62 dry gallons / 12.86 to 20.35 dry liters in volume
#6 Container Ranges from 5.25 to 6.01 dry gallons / 23.12 to 26.42 dry liters in volume
#7 Container Ranges from 5.98 to 6.08 dry gallons / 26.34 to 26.78 dry liters in volume

About Plant Sentry™

Plant Sentry is designed to protect both consumers and the nursery trade from invasive plant pests and diseases. Sites that display the Plant Sentry protection badge are protected from consumers buying and nurseries shipping material carrying invasive pests and diseases.

This proprietary eCommerce software prevents the shipment of a restricted plant to each state. The Plant Sentry system includes a shipment certification program. The Plant Sentry Compliance Officer works closely with NatureHills.com and each nursery or fulfillment center to ensure only compliant plants are sold to customers.

Click Here to learn more

Plant Sentry


To obtain a more accurate shipment time-frame, simply enter your zip code in the “Find Your Growing Zone” box to the right. Our plants are grown all over the country and lead time on items may be different because of this. Once your order is placed, you will also receive the specific shipment time-frame information as part of your order confirmation. Once an item ships, you will receive shipment notification and tracking numbers, so you can follow along while your plant travels to your doorstep. We use FedEx, UPS, or USPS at our discretion.

Due to winter weather we have put a hold on shipping to the areas shown below in grey. You can still order now and we will ship the plant to you during an appropriate time for your zone.

*If you have found your zone already, it will be highlighted in the table below.
Color Zone Times
3 Spring 2019
4 Now
5 Now
6 Now
7 Now
8 Now
9 Now
10 Now
11 Now

Shipping Rates

At Nature Hills we handle, package and ship the products you order with the utmost care to ensure healthy delivery. Shipping and handling charges are calculated based on the tables below. Please note that some items include an additional handling surcharge, these will be noted on the item's product page.

From To S&H
0 - 19.99 24.99
20 - 49.99 29.99
50 - 69.99 34.99
70 - 99.99 39.99
100 - 129.99 44.99
130 - 149.99 48.99
150 - 150+ Approx 28%

Click here to see our full rates


Purple Haze Hyssop Is Suited to Grow in Zones 6-10
Growing Zones 6-10
More Information
Brand Nature Hills' Choice
Botanical Name Agastache 'Purple Haze'
Type Perennial
Mature Height 2 - 3 feet
Mature Spread 1 - 2 feet
Sun Exposure Full Sun
Soil Well Drained Soil
Moisture Medium
Growth Rate Medium
Foliage Color Green
Pollinator Friendly Yes
Pruning Time Late Autumn
Fragrant Yes