Isodon longitubus | Heavenly Teacost

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DESCRIPTION
Isodon longitubus is a late-blooming perennial that showcases tubular flowers in shades of pale violet to lavender-blue, arranged along arching stems. The blooms appear in clusters from late summer into autumn, adding a subtle charm to the garden during the transition from warm to cooler weather. The flowers' elegant, elongated shape and soft coloration make them a delicate and graceful addition to the landscape.

Native to Japan, Isodon longitubus thrives in woodland and shaded environments, where its understated beauty complements other shade-loving plants. Its ability to bloom late in the season makes it an excellent choice for extending garden interest into autumn.

DESCRIPTION
Isodon longitubus is a late-blooming perennial that showcases tubular flowers in shades of pale violet to lavender-blue, arranged along arching stems. The blooms appear in clusters from late summer into autumn, adding a subtle charm to the garden during the transition from warm to cooler weather. The flowers' elegant, elongated shape and soft coloration make them a delicate and graceful addition to the landscape.

Native to Japan, Isodon longitubus thrives in woodland and shaded environments, where its understated beauty complements other shade-loving plants. Its ability to bloom late in the season makes it an excellent choice for extending garden interest into autumn.

 

  • Family: Lamiaceae
    Height: 36 to 48 inches
    Width: 18 to 24 inches
    Foliage color: Bright green leaves with serrated edges
    Flower color: Violet to lavender tubular flowers
    Bloom time: Late summer to early fall
    Light requirements: Partial shade to full shade
    Water requirements: Moderate
    Maintenance: Low; occasional pruning after flowering for shape, and mulching to retain soil moisture
    Growing zone: Zones 5-8
    Wildlife attractors: Attracts pollinators, including bees and butterflies

    This plant can be seen in the perennial border at the Bellevue Botanical Garden.

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