Alphabetical Plant Listing

Agastache 'Summer Sky' (Hummingbird Mint)

Hyssop 'Summer Sky', Anise Hyssop 'Summer Sky', Hummingbird Mint 'Summer Sky', Giant hyssop 'Summer Sky'


Agastache 'Summer Sky' (Hummingbird Mint) is a compact and bushy, upright herbaceous perennial forming a low mound of ovate, aromatic, bright green leaves. From early summer to fall, it boasts showy spikes of glowing violet-blue flowers with dark calyxes for a great floral display. A real feast for the eye. The flower spikes add lovely vertical lines to the landscape.

  • Grows up to 24 in. tall (60 cm) and 20 in. across (50 cm). The aromatic leaves exude a minty scent when crushed.
  • Easily grown in full sun, in well-drained, fertile soils. Good drainage is particularly important. Although a drought-tolerant plant, it might need watering in extreme dry weather spells.
  • Provides a bold visual impact in beds and borders, cottage gardens, city gardens, gravel gardens, butterfly gardens, or patio containers over a very long season.
  • Ideal to add color to the late-season garden when many other plants are fading.
  • Creates a stunning effect when mixed with other perennials or planted en masse.
  • Attracts streams of hummingbirds, butterflies, and other beneficial pollinators.
  • Generally disease and pest-free (might occasionally be subject to powdery mildew) and resistant to deer and rabbits.
  • Deadhead spent flowers to promote additional bloom. 
  • Propagate by division or by semi-ripe cuttings.

Not sure which Agastache - Hyssops to pick?
Compare All Agastache - Hyssops

Buy Agastache 'Summer Sky' (Hummingbird Mint)

Requirements

Hardiness 7 – 10
Climate Zones 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Agastache - Hyssops
Exposure Full Sun
Season of Interest Summer (Early,Mid,Late)
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 15" – 20" (37cm – 50cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Fragrant, Showy
Tolerance Deer, Drought, Rabbit
Attracts Butterflies, Hummingbirds
Garden Uses Beds and Borders, Patio and Containers
Garden Styles City and Courtyard, Gravel and Rock Garden, Informal and Cottage

Buy Plants

Great Plant Combination Ideas with Agastache - Hyssops

Guides with Agastache - Hyssops


picture courtesy of Terra Nova® Nurseries, Inc. - www.terranovanurseries.com

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 7 – 10
Climate Zones 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Agastache - Hyssops
Exposure Full Sun
Season of Interest Summer (Early,Mid,Late)
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 15" – 20" (37cm – 50cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Fragrant, Showy
Tolerance Deer, Drought, Rabbit
Attracts Butterflies, Hummingbirds
Garden Uses Beds and Borders, Patio and Containers
Garden Styles City and Courtyard, Gravel and Rock Garden, Informal and Cottage

Great Plant Combination Ideas with Agastache - Hyssops

Guides with Agastache - Hyssops

Plant Calculator

How many Agastache 'Summer Sky' (Hummingbird Mint) do I need for my garden?

%
ft
ft

Your Shopping List

Plant Quantity
Agastache 'Summer Sky' (Hummingbird Mint)

Find your Hardiness Zone

Find your Climate Zone

Find your Heat Zone

Join Gardenia.net

Create a membership account to save your garden designs and to view them on any device.

Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

Join now and start creating your dream garden!

Create a New Collection

Optional. For your reference.


Move Selected Plants to a Different Collection


Delete Collection

This field is required.

Rename Collection

This field is required.