Guava Lava Giant Hyssop (Agastache 'Guava Lava')
ag-ah-STAK-ee 'Guava Lava'

Deciduous Perennial in the Lamiaceae Family
 
Buy Guava Lava Giant Hyssop
Size Notes Price Availability
Tray of 6 #1 gallons Field

Small & Well-Rooted (9/25)

$62.01

Limited Availability

Coral orange flowers are held on equally colorful mauve pink calyxes.

Agastache 'Guava Lava' is a patented (US PP36,001) hybrid hyssop bred by Hans A. Hansen for Walters Gardens, from a cross of two proprietary, unreleased hybrid selections. A dense, well-branched, multi-stemmed perennial, it produces large coral-orange flowers held in showy mauve-pink calyxes from early summer through frost, with the ornamental pink calyxes remaining attractive even after the flowers fade. It thrives in full sun and lean, well-drained soil, and holds up well to summer heat.

Pros

  • Long bloom season, early summer through frost
  • Showy mauve-pink calyxes stay ornamental after flowers fade
  • Drought-tolerant once established
  • Attracts hummingbirds, butterflies, and pollinators

Cons

  • Needs excellent drainage; struggles in heavy or wet soil
  • Benefits from deadheading and a spring cutback for best form
  • Patented — propagation restricted to licensed growers
Highlights

Patented hyssop with abundant coral-orange flowers and long-lasting mauve-pink calyxes, blooming from early summer to frost.

 

Plant Data

Mature Size 20 - 22 inches tall. 22 - 26 inches wide.
Sun Exposure Full Sun - Full Sun
Moisture Tolerance Dry - Medium: Drought-tolerant once established; water sparingly. Does not tolerate persistently wet or waterlogged soil.
Zones 5a - 9b (Usually hardy to -20° F)
Tags Attracts Bees, Attracts Beneficial Insects, Attracts Butterflies, Attracts Hummingbirds, Attracts Pollinators, Container, Deciduous, Deer Resistant, Drought Tolerant, Dry, Extended Bloom Time, Fragrant, Fragrant Foliage, Full Sun, Good for Beginners, Good for Borders, Good for Butterfly Garden, Good for Cottage Garden, Good for Cut Flowers, Good for Mass Planting, Good for Rock Garden, Low Maintenance, Medium, Naturalizing, Normal Soil, Perennial, Rabbit Resistant, Showy Flowers, Tolerant of Poor Soil, Well-Drained Soil
Bloom Period June to Frost
Flower Color Coral-Orange
Foliage Color Green
 

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Pricing and Availability History

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Past Availability
2025 : 04/13 - 10/04

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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.


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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!