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  • Photo Courtesy of Terra Nova Nursery
  • Photo Courtesy of Terra Nova Nursery
  • Photo Courtesy of Terra Nova Nursery
  • Photo Property of Garden Crossings LLC

Agastache 'Blue Boa'

Quick Overview

  • Fragrant Foliage,
  • Large Violet Blue Flowers,
  • Blooms Summer until Fall
Common Name:Hyssop
Plant Type:Perennial
Hardiness Zone: 5, 6, 7, 8, 9, 10 What is my zone?
Height:1 - 3 Feet
Spread:2 - 2 Feet
Exposure:Full Sun (+6 hrs.)
Nature Attractions:Bee-Friendly, Butterflies, Hummingbirds
Critter Resistance:Deer
Flower Color:Blue Shades

Availability: In stock

Product Name Price Qty
Agastache 'Blue Boa' - PS - QT Pot
(Ships in Spring by USDA Zone)
  • Buy 3 for $16.14 each and save 5%
  • Buy 6 for $15.29 each and save 10%
  • Buy 12 for $14.44 each and save 15%


(Hyssop) 'Blue Boa' is an amazingly showy new Agastache from Terra Nova Nurseries. The beautiful deep-violet spikes are thick, long and super showy. Agastache perennial plants bloom all summer long in full sun and require moderate-to-dry soil. Consider using 'Blue Boa' as a cut flower with a pleasing anise fragrance. This is a perfect plant for butterfly and hummingbird gardens. Because of its lovely fragrance, 'Blue Boa' is deer resistant.
More Info

Agastache 'Blue Boa' PP24,050

Common Name Hyssop
USDA Hardiness Zone 5, 6, 7, 8, 9, 10
Plant Type Perennial
Sun Exposure Full Sun (+6 hrs.)
Soil Moisture Needs Dry, Moderate
Nature Attractions Bee-Friendly, Butterflies, Hummingbirds
Critter Resistance Deer
Flower Color Blue Shades
Attributes Cut Flower or Foliage, Deciduous, Dried Flower, Drought Tolerant, Fragrant, Native
Design Use Border, Container, Massing, Specimen
Season of Interest (Flowering) Fall, Late Summer, Summer

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Customer Reviews

Quality hyssop Review by Murf
ANYTHING from TerraNova is excellent! (Posted on 4/13/2018)
Needed Staking Review by Marcia K | Zone: 7a
These were very tall and needed staking. Also, they were not as fluffy as the pictures showed them to be. I was disappointed with them. (Posted on 4/6/2015)
Homeowner Tips

For general growing tips and how to care for your perennials. View Garden Crossings How to care for Perennials page.

Interested in growing tips for other plants we sell. Browse our Plant Care Tips.