North America Native Plant

Wild Crocus

Botanical name: Tradescantia longipes

USDA symbol: TRLO2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Wild Crocus: A Rare Native Gem Worth Protecting in Your Garden If you’re a native plant enthusiast looking for something truly special, let me introduce you to wild crocus (Tradescantia longipes) – a charming but increasingly rare member of the spiderwort family. Don’t let the common name fool you; this ...

Rare plant alert!

Region: Arkansas

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) ⚘

Wild Crocus: A Rare Native Gem Worth Protecting in Your Garden

If you’re a native plant enthusiast looking for something truly special, let me introduce you to wild crocus (Tradescantia longipes) – a charming but increasingly rare member of the spiderwort family. Don’t let the common name fool you; this isn’t related to the spring bulbs you might be thinking of. Instead, this little beauty is a genuine American native that deserves our attention and protection.

What Makes Wild Crocus Special?

Wild crocus is a perennial forb, which simply means it’s a soft-stemmed herbaceous plant that comes back year after year. Like its spiderwort cousins, it produces delicate three-petaled flowers in shades of blue to purple, creating a subtle but lovely display in the garden. The grass-like foliage adds texture and movement, making it a wonderful addition to naturalized plantings.

A Plant with a Limited Address

Here’s where things get interesting – and a bit concerning. Wild crocus has one of the most restricted native ranges of any Tradescantia species, calling only Arkansas and Missouri home. This limited distribution makes it a true regional treasure, but also puts it at risk.

The Rarity Factor: Handle with Care

Before you rush out to find wild crocus for your garden, there’s something important you need to know. This plant carries an S2 rarity status in Arkansas, which means it’s considered rare and vulnerable. This designation is a red flag that tells us we need to be extra thoughtful about how we approach growing this species.

If you’re interested in growing wild crocus, please only source it from reputable native plant nurseries that propagate their own stock. Never collect seeds or plants from wild populations – these rare communities need every individual they can get.

Why Consider Wild Crocus for Your Garden?

Despite its rarity challenges, there are compelling reasons to include responsibly sourced wild crocus in your native plant garden:

  • You’ll be helping preserve a rare species through cultivation
  • It supports native pollinators like bees and other small insects
  • The delicate flowers add understated elegance to shade gardens
  • As a native, it’s naturally adapted to local conditions
  • It’s low-maintenance once established

Growing Wild Crocus Successfully

While specific growing information for Tradescantia longipes is limited due to its rarity, we can draw from its spiderwort heritage and native habitat preferences:

Ideal Growing Conditions

  • Light: Partial shade to full shade
  • Soil: Moist, well-draining soil
  • Hardiness: Likely zones 5-8 based on native range
  • Water: Consistent moisture, but not waterlogged

Planting and Care Tips

Think woodland garden when planning for wild crocus. It likely prefers the dappled shade and rich, organic soils found in its native forest habitats. Here’s how to give it the best start:

  • Plant in spring or fall when temperatures are moderate
  • Amend heavy clay or sandy soils with compost
  • Provide consistent moisture during establishment
  • Mulch around plants to retain moisture and suppress weeds
  • Allow some self-seeding in appropriate areas

The Garden Role of Wild Crocus

Wild crocus works beautifully in native plant gardens, woodland settings, and naturalized areas. Its modest stature and delicate flowers make it perfect for intimate spaces where its subtle charms can be appreciated up close. Consider pairing it with other native woodland plants like wild ginger, native ferns, or other regional specialties.

A Conservation Opportunity in Your Backyard

Growing wild crocus isn’t just about adding another pretty plant to your collection – it’s about participating in conservation. By providing a home for this rare species in your garden, you’re helping ensure its survival for future generations. Just remember, this privilege comes with the responsibility of sourcing your plants ethically.

If you can’t find responsibly sourced wild crocus, consider other native Tradescantia species that are more common and readily available. Ohio spiderwort (Tradescantia ohiensis) or Virginia spiderwort (Tradescantia virginiana) offer similar garden benefits without the conservation concerns.

The Bottom Line

Wild crocus represents both an opportunity and a responsibility for native plant gardeners. If you can source it responsibly, it’s a wonderful way to support conservation while adding a unique native to your garden. Just remember – with great plants comes great responsibility!

Wild Crocus

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Commelinales

Family

Commelinaceae Mirb. - Spiderwort family

Genus

Tradescantia L. - spiderwort

Species

Tradescantia longipes E.S. Anderson & Woodson - wild crocus

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