North America Native Plant

Huntsville Vasevine

Botanical name: Clematis morefieldii

USDA symbol: CLMO6

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Coriflora morefieldii (Kral) W.A. Weber (COMO12)   

Huntsville Vasevine: A Rare Gem Worth Protecting in Your Native Garden If you’re passionate about growing truly unique native plants, you may have heard whispers about Huntsville vasevine (Clematis morefieldii). This extraordinary climbing perennial represents one of nature’s most exclusive offerings – a plant so rare that encountering it in ...

Rare plant alert!

Region: United States

Status: S2: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Region: United States

Region: United States

Huntsville Vasevine: A Rare Gem Worth Protecting in Your Native Garden

If you’re passionate about growing truly unique native plants, you may have heard whispers about Huntsville vasevine (Clematis morefieldii). This extraordinary climbing perennial represents one of nature’s most exclusive offerings – a plant so rare that encountering it in the wild is like finding botanical treasure.

What Makes Huntsville Vasevine Special

Huntsville vasevine isn’t your typical clematis. This herbaceous perennial forb lacks the woody stems of its more common cousins, instead producing soft, climbing stems that gracefully trail and climb through its native limestone habitats. The plant produces distinctive bell-shaped flowers in rich reddish-purple to maroon tones that nod elegantly downward, creating an almost mysterious appearance when they bloom in late spring to early summer.

A Plant on the Brink

Important Conservation Alert: Before we dive into growing tips, it’s crucial to understand that Huntsville vasevine is classified as Endangered in the United States and carries a Global Conservation Status of S2 (Imperiled). With typically only 6 to 20 occurrences remaining and fewer than 1,000 to 3,000 individuals in the wild, this plant desperately needs our protection.

If you’re considering adding this species to your garden, please ensure you source it only from reputable native plant nurseries that propagate from ethically obtained seeds or cuttings – never collect from wild populations.

Where Huntsville Vasevine Calls Home

This remarkable native is found exclusively in Alabama and Tennessee, making it a true regional endemic. It’s specifically adapted to the limestone-rich areas of the Tennessee Valley region, where it has evolved to thrive in very particular soil and climate conditions.

Growing Huntsville Vasevine: A Challenge Worth Accepting

Growing Huntsville vasevine is not for the faint of heart – this plant has very specific needs that mirror its native limestone habitat:

  • Soil Requirements: Well-drained, alkaline soils with limestone content are essential
  • Light Conditions: Partial shade to dappled sunlight works best
  • Moisture: Cool, moist root zone while avoiding waterlogged conditions
  • Hardiness: Suitable for USDA zones 6-8

Perfect Garden Companions and Placement

Huntsville vasevine shines in specialized settings:

  • Rock gardens with limestone elements
  • Native plant conservation collections
  • Naturalized areas where it can trail over rocks
  • Specialized native clematis collections

This plant works beautifully when allowed to climb through small shrubs or trail over limestone boulders, mimicking its natural habitat.

Supporting Local Wildlife

While specific pollinator relationships aren’t well-documented due to the plant’s rarity, Huntsville vasevine likely supports small native bees and flies with its unique flower structure. By growing this plant responsibly, you’re helping preserve habitat for specialized pollinators that have co-evolved with this rare species.

Care and Maintenance Tips

Once established (which can take considerable patience), Huntsville vasevine requires minimal intervention:

  • Avoid over-fertilizing – this plant is adapted to lean soils
  • Mulch around the roots to keep them cool and moist
  • Provide gentle support for climbing stems if desired
  • Allow natural dormancy in winter without disturbance

The Bottom Line: A Plant Worth Protecting

Huntsville vasevine represents more than just another addition to your garden – it’s a living piece of botanical heritage that needs our help to survive. While challenging to grow and obtain, successfully cultivating this rare native can contribute to conservation efforts while providing you with one of the most unique plants in North American flora.

Remember: only source this plant from reputable nurseries committed to conservation, never from wild populations. By growing Huntsville vasevine responsibly, you become part of the solution in preserving this incredible species for future generations.

Have you encountered rare native plants in your gardening journey? The challenge of growing something this special often rewards patient gardeners with unparalleled satisfaction and the knowledge that they’re contributing to conservation right in their own backyard.

Huntsville Vasevine

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Magnoliidae

Order

Ranunculales

Family

Ranunculaceae Juss. - Buttercup family

Genus

Clematis L. - leather flower

Species

Clematis morefieldii Kral - Huntsville vasevine

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA