Hosta 'Carolina Blue' | Glaucous Blue-Green Medium Hosta Solberg Halcyon Riptide Cross

Description

Bob Solberg's Refined Halcyon × Riptide Cross With Glaucous Bloom on Both Leaf Surfaces

Bob Solberg of Chapel Hill, North Carolina registered Hosta 'Carolina Blue' in 2000 from a cross of H. 'Halcyon' and H. 'Riptide'. Broadly ovate leaves with a rounded base reach 17.8 cm (7") long × 14 cm (5.5") wide with 8 to 9 vein pairs, presenting blue-green flat margins with a glaucous bloom on both the upper and lower surfaces. Blue scapes rise 71.1–81.3 cm (28–32") tall, carrying pale lavender tubular flowers well above the mound. It forms a tidy mound 40.6 cm (16") tall and 76.2 cm (30") wide at a moderate growth rate. Canadian gardeners from Zone 3 through 9 will find it a refined and reliable blue shade specimen.

  • Glaucous bloom on both leaf surfaces: A waxy glaucous bloom on both the top and underside of each leaf gives 'Carolina Blue' its characteristic matte blue-green finish — one of the cleaner, cooler blues in the medium hosta category.
  • Halcyon × Riptide pedigree: The cross of H. 'Halcyon' — one of the most celebrated blue hostas — with H. 'Riptide' produces a cultivar that combines Halcyon's refined blue colouring with the distinctive character of Riptide in a well-balanced medium mound.
  • Exceptionally tall blue scapes: At 71.1–81.3 cm (28–32") the blue scapes on 'Carolina Blue' rise notably high above the mound, presenting pale lavender tubular flowers in a striking vertical display well clear of the foliage.
  • Rounded base with 8–9 vein pairs: The classic rounded leaf base and prominent vein pairs give the foliage a satisfying, well-structured presence that holds its form cleanly throughout the Canadian growing season.
  • Moderate, reliable growth: A steady moderate growth rate makes 'Carolina Blue' a predictable and well-behaved border performer — consistent season to season without aggressive spreading.
Feature Specification
Size (H × W) 40.6 cm × 76.2 cm (16" × 30")
Hardiness Zone 3–9
Colour Glaucous blue-green; pale lavender flowers
Light Requirements Partial to full shade

Grower's Tip: 'Carolina Blue' handles Canadian winters with ease from Zone 3 through 9 — avoid afternoon sun to preserve the glaucous bloom, as heat and direct light can diminish the waxy coating that gives this cultivar its signature blue finish. We grow it at our nursery in Bécancour, QC and monitor the glaucous coating on both leaf surfaces before every plant ships. Our True to Type standard means you receive the authentic Bob Solberg selection — confirmed before it leaves Bécancour.

Product form

$16.00

    • Next Availability Date: Now
    • Mature Height: 16" (40.64 cm)
    • Mature Spread: 30" (76.20 cm)
    • Seasonal Leaf Change: blue>blue-green
    • Hybridizer: Solberg
    • Hybridizer (List 2):
    • AHS Registration Year: 2000
    • Canada Breeders' Rights No. / Expiry:
    • US Patent No. / Expiry:
    • Collection: Current Availability
    • Photo Credit:
    • Date of Last Update: September 2026
    • Waiting List for this Variety:

    Description

    Bob Solberg's Refined Halcyon × Riptide Cross With Glaucous Bloom on Both Leaf Surfaces

    Bob Solberg of Chapel Hill, North Carolina registered Hosta 'Carolina Blue' in 2000 from a cross of H. 'Halcyon' and H. 'Riptide'. Broadly ovate leaves with a rounded base reach 17.8 cm (7") long × 14 cm (5.5") wide with 8 to 9 vein pairs, presenting blue-green flat margins with a glaucous bloom on both the upper and lower surfaces. Blue scapes rise 71.1–81.3 cm (28–32") tall, carrying pale lavender tubular flowers well above the mound. It forms a tidy mound 40.6 cm (16") tall and 76.2 cm (30") wide at a moderate growth rate. Canadian gardeners from Zone 3 through 9 will find it a refined and reliable blue shade specimen.

    • Glaucous bloom on both leaf surfaces: A waxy glaucous bloom on both the top and underside of each leaf gives 'Carolina Blue' its characteristic matte blue-green finish — one of the cleaner, cooler blues in the medium hosta category.
    • Halcyon × Riptide pedigree: The cross of H. 'Halcyon' — one of the most celebrated blue hostas — with H. 'Riptide' produces a cultivar that combines Halcyon's refined blue colouring with the distinctive character of Riptide in a well-balanced medium mound.
    • Exceptionally tall blue scapes: At 71.1–81.3 cm (28–32") the blue scapes on 'Carolina Blue' rise notably high above the mound, presenting pale lavender tubular flowers in a striking vertical display well clear of the foliage.
    • Rounded base with 8–9 vein pairs: The classic rounded leaf base and prominent vein pairs give the foliage a satisfying, well-structured presence that holds its form cleanly throughout the Canadian growing season.
    • Moderate, reliable growth: A steady moderate growth rate makes 'Carolina Blue' a predictable and well-behaved border performer — consistent season to season without aggressive spreading.
    Feature Specification
    Size (H × W) 40.6 cm × 76.2 cm (16" × 30")
    Hardiness Zone 3–9
    Colour Glaucous blue-green; pale lavender flowers
    Light Requirements Partial to full shade

    Grower's Tip: 'Carolina Blue' handles Canadian winters with ease from Zone 3 through 9 — avoid afternoon sun to preserve the glaucous bloom, as heat and direct light can diminish the waxy coating that gives this cultivar its signature blue finish. We grow it at our nursery in Bécancour, QC and monitor the glaucous coating on both leaf surfaces before every plant ships. Our True to Type standard means you receive the authentic Bob Solberg selection — confirmed before it leaves Bécancour.

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