Meant to Bee Royal Raspberry Giant Hyssop (Agastache 'Royal Raspberry')
ag-ah-STAK-ee 'Royal Raspberry'

Deciduous Perennial (usually grown as an annual near you) Upright in the Lamiaceae Family

About Giant Hyssops

Giant Hyssop is an herbaceous perennial in the mint family of which most are native to North America and many from the southwest. They are showy, fragrant, long-blooming perennials with spikes of flowers that bloom most of the summer. Colors range from white to blue and shades of red and purple. Giant Hyssops are essential for a pollinator-friendly garden and have excellent resistance to browsing deer and rabbits. They are also heat and drought tolerant.

Well-drained soils are essential for this plant and wet winter feet in poorly drained soil will do them in. Plant in a raised bed or container if you have heavy soil. Use in a pollinator garden, rock garden or naturalized areas.


Plant Data

Mature Size 28 - 32 inches tall. 28 - 32 inches wide.
Growth Rate Fast
Sun Exposure Full Sun - Full Sun
Moisture Tolerance Dry - Medium
Zones 5a - 9b (Usually hardy to -20° F)
Tags Annual in Chicago, Attracts Birds, Attracts Butterflies, Attracts Hummingbirds, Attracts Pollinators, Attracts Wildlife, Container, Deciduous, Deer Resistant, Disease Resistant, Drought Tolerant, Dry, Extended Bloom Time, Fast Growth Rate, Filler, Fragrant, Fragrant Flowers, Fragrant Foliage, Full Sun, Full Sun, Good for Borders, Good for Butterfly Garden, Good for Cottage Garden, Good for Cut Flowers, Good for Mass Planting, Low Maintenance, Medium, Naturalizing, Non-Allergenic, Normal Soil, Perennial, Prairie Garden, Rabbit Resistant, Showy Flowers, Squirrel Resistant, Tender Perennial, Tolerant of Loamy Soil, Tolerant of Moist Soil, Tolerant of Poor Soil, Tolerant of Sandy Soil, Well-Drained Soil, Woodland Garden
Bloom Period June-September
Flower Color Rosy purple flowers with burgundy calyxes
Foliage Color Dark green with burgundy
Want photos of this plant? Try Google Image Search!

Pricing and Availability History

Click a label to toggle visibility for that size

© North Shore Plant Club 2024. Privacy Policy, Terms & Conditions.

Limited Availability

We try very hard to source exactly what you’d like, but sometimes growers run out of plants! While this variety is a great deal at the price shown, we know that it has limited availability. If you want the plant even if it might be more expensive, or in a different size or quantity -- after you place your order, just send us a quick note at Then, we’ll try to get you some version of this from one of our growers. And if we can’t get it from anywhere, of course, we’ll send a refund!

Field-Grown vs. Greenhouse-Grown Plants

Plants which are well-adapted to our local climate are most often field-grown (outside). Field-grown plants are generally cheaper and have the advantage of already somewhat acclimated to our cold winters, but that means they’re not artificially far along in the spring and tend to bloom at the normal time in our area.

Spring annuals and tender perennials are typically grown in Greenhouses so they can be ready and luxurious exactly when customers want them. Some perennials are also “forced” into early bloom in greenhouses. In May, there can be a very big difference between field-grown and greenhouse-grown plants of the same type. The latter typically look good right away (so they’re a great choice where that’s important), but we typically pay a premium for it.

Benefits of Membership

Want a better way to get great plants and make your yard look awesome? Create your account below and get:

  • The best plants… from the same sources the pros use, but at near wholesale prices
  • More plants in more sizes than anywhere else… whether you’re looking for classics or rarities; annuals, perennials or shrubs; one plant or a whole yardful!
  • "No Contact" delivery or easy pick-up at a site near you without fighting the retail crowds. You choose!

Membership is free, but — since we rely on delivery and local pick-up — you have to live near one of our hubs (or be willing to drive to a site to pick them up). If you live farther away, and would like to help us bring the club to your neighbors, please email

Already a member?


About Ordering From The Plant Club

To secure the best prices for club members and make sure we know the current plants available from each nursery, we take orders only a couple of times a month.

The next order is coming up soon. Here's a link to our ordering calendar. Shoot us an email at, and we'll be happy to talk about plants or let you know when it's time to buy them!

No Pricing or Availability Right Now

We order from a rotating cast of the best nurseries in the Great Lakes region. It looks like we've offered this plant in the past, but the nurseries we're working with this week don't appear to have it in stock at the moment.

Our goal is to bring as many plants together under "one roof" as possible, so we'll try hard to make it available again in the future!