Sanicula epipactis 'Thor' 04.jpeg
Sanicula epipactis 'Thor' 01.jpeg
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Sanicula epipactis 'Thor' 04.jpeg
Sanicula epipactis 'Thor' 01.jpeg
Sanicula epipactis 'Thor' 02.jpeg

Sanicula epipactis 'Thor' | Thor Dwarf Masterwort

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DESCRIPTION
Sanicula epipactis ‘Thor’ produces distinctive spring blooms defined by broad, variegated bracts rather than traditional petals. Each flower head is encircled by green bracts edged and marbled in creamy white, forming a flat, star-like display. At the center sits a dense, rounded cluster of tiny yellow florets. The foliage beneath is deeply lobed and softly textured, complementing the patterned bracts.

Blooming in mid to late spring, ‘Thor’ originates from a cultivated selection of the European species Saniculaepipactis. It is well suited to woodland-style plantings, shaded borders, and naturalistic settings, where its graphic flowers read clearly at close range and mingle well with other spring ephemerals.

DESCRIPTION
Sanicula epipactis ‘Thor’ produces distinctive spring blooms defined by broad, variegated bracts rather than traditional petals. Each flower head is encircled by green bracts edged and marbled in creamy white, forming a flat, star-like display. At the center sits a dense, rounded cluster of tiny yellow florets. The foliage beneath is deeply lobed and softly textured, complementing the patterned bracts.

Blooming in mid to late spring, ‘Thor’ originates from a cultivated selection of the European species Saniculaepipactis. It is well suited to woodland-style plantings, shaded borders, and naturalistic settings, where its graphic flowers read clearly at close range and mingle well with other spring ephemerals.

  • Family: Apiaceae
    Height: 6 to 10 in
    Width: 10 to 14 in
    Foliage color: Glossy, medium green leaves, often with subtle mottling; foliage forms a low, spreading clump
    Flower color: Small, true flowers are bright yellow and tightly clustered in rounded umbels, surrounded by large, daisy-like variegated cream-white bracts
    Bloom time: Early to mid spring
    Light requirements: Partial shade to full shade
    Water requirements: Moderate
    Maintenance: Low; remove spent flower stems after bloom to maintain appearance; spreads slowly by self-seeding
    Growing zone: USDA zones 5 to 8
    Wildlife attractors: Early-season pollinators, including bees and beneficial insects

    This plant can be seen at the Bellevue Botanical Garden.

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  • Works Well In:
    ‍ ‍ ● Woodland Gardens
    ‍ ‍ ● Borders
    ‍ ‍ ● Pollinator Gardens
    ‍ ‍ ● Under Trees

    Companion Plants:
    ‍ ‍ Brunneras Skimmias
    Epimedium Blechnums
    Cyclamen Hellebores

    Design Tip:
    Position this distinctive woodland perennial where its patterned bracts can be admired up close along shaded paths or borders. Layer evergreen shrubs, contrasting foliage, and finely textured companions to create depth, visual rhythm, and a refined spring woodland display.