Agastache – ‘Blue Boa’ – Hummingbird mint

Garden Height
30 - 36
20 - 24
20 - 24
Container Role
Flower Size
Flower Colors
Light Code
Light Level
Proven Selections


  • Drought Tolerant
  • Fragrant Flower
  • Fragrant Foliage
  • Heat Tolerant
  • Native to North America

Attracts: Hummingbirds

Resists: Deer

Maintenance Notes:

Plant in full sun with slightly alkaline soil. The key is GOOD DRAINAGE--this will not tolerate wet, especially in winter. To provide more drainage, put gravel at the bottom of the hole before planting.

Needs Good Drainage

Maintenance Category: Easy

Water Category: Average

Bloom Time: Summer

Hardiness Zones: 10b

Flower Form: Specimen or Focal Point

Soil Fertility: Fertile Soil

pH: C - pH 6.0 - 6.5

EC (2:1 Extraction Method): 0.6

Fertilization: 100 - 150

Light Requirements: High

Water Requirements: Moderate to Moist

Rooting Out Temperature: 65 - 72° Fahrenheit

Growing On Temperature: 55 - 65° Fahrenheit

Holding Temperature: 50 - 60° Fahrenheit

Planting and Timing Information:

Early Spring through Fall Finish. Standard PPP.

Finishing Times [weeks]:

4-5" and Quart Pot: 6-8
6" and Gallon Pot: 8-10
7-9" Pot: 8-10
10-12" and Two Gallon Pot: 10-12

Pinching and Growth Regulators:

Pinch at liner planting and as needed to shape.

Pest and Disease Management:

General pest and disease practices as listed in notes.

Grower Tips:

-Color Spires are very free blooming and rebloom quickly after trimming.

Good air circulation and proper water management is critical. Use a well drained planting mix and allow soil to dry between waterings.

  • Proven Winners
  • Proven Winners