North America Native Plant

Spring Hill Flax

Botanical name: Linum macrocarpum

USDA symbol: LIMA10

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Spring Hill Flax: A Rare Southeastern Native Worth Protecting If you’re passionate about native plants and conservation, you might want to learn about Spring Hill flax (Linum macrocarpum), one of the Southeast’s most endangered wildflowers. This delicate perennial is a true botanical treasure that deserves our attention and protection. What ...

Rare plant alert!

Region: Alabama

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) ⚘ Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘

Region: Alabama

Spring Hill Flax: A Rare Southeastern Native Worth Protecting

If you’re passionate about native plants and conservation, you might want to learn about Spring Hill flax (Linum macrocarpum), one of the Southeast’s most endangered wildflowers. This delicate perennial is a true botanical treasure that deserves our attention and protection.

What Makes Spring Hill Flax Special?

Spring Hill flax is a native herbaceous perennial that belongs to the flax family. As a forb, it’s a non-woody flowering plant that dies back to the ground each winter and returns each spring. While it may look delicate, this little survivor has been calling the American Southeast home long before European settlement.

The plant produces small, charming blue flowers that are characteristic of the flax family, creating a subtle but beautiful display in its natural habitat.

Where Does It Grow?

This rare native has a very limited range, naturally occurring only in Alabama, Florida, Louisiana, and Mississippi. Its restricted distribution is part of what makes it so special—and so vulnerable.

Why Is Spring Hill Flax So Rare?

Here’s where things get serious. Spring Hill flax has a Global Conservation Status of S2, meaning it’s considered Imperiled due to extreme rarity. In Alabama, it’s even more critically endangered with an S1 status. This means there are typically only 6 to 20 known occurrences, with very few remaining individuals in the wild.

This rarity makes Spring Hill flax a plant that needs our help, not our exploitation.

Should You Grow Spring Hill Flax?

The short answer is: maybe, but only if you do it right. Because of its endangered status, you should never collect seeds or plants from wild populations. If you’re interested in growing this rare beauty, here are the guidelines:

  • Only obtain plants or seeds from reputable native plant nurseries that can verify responsible sourcing
  • Make sure the material wasn’t collected from wild populations
  • Consider this plant only if you live within its native range (Alabama, Florida, Louisiana, or Mississippi)
  • Treat it as a conservation effort, not just a garden addition

Growing Conditions and Care

Since Spring Hill flax is so rare, detailed cultivation information is limited. However, based on its native habitat and related flax species, here’s what we know:

  • USDA Hardiness Zones: 8-10 (matching its southeastern range)
  • Sunlight: Likely prefers full sun
  • Soil: Probably needs well-draining soil
  • Water: Moderate moisture, avoid waterlogged conditions

As a perennial, it will return each year once established, making it a long-term addition to your native plant collection.

Wildlife and Pollinator Benefits

While specific data on Spring Hill flax’s wildlife interactions is limited due to its rarity, native flax species typically support small pollinators and may provide seeds for birds. Every native plant plays a role in supporting local ecosystems, and rare species like this one are irreplaceable pieces of the ecological puzzle.

A Garden with Purpose

Spring Hill flax isn’t for every garden—it’s for gardeners who see themselves as conservation partners. If you choose to grow this rare native, you’re participating in conservation efforts that could help ensure its survival for future generations.

This plant would be perfect for:

  • Native plant gardens focused on regional flora
  • Conservation collections
  • Wildflower meadows in its native range
  • Educational gardens highlighting endangered species

The Bottom Line

Spring Hill flax represents something bigger than just another pretty flower—it’s a reminder of what we stand to lose when we don’t protect our native biodiversity. If you’re lucky enough to grow this rare gem, treat it as the precious conservation opportunity it is. And remember, the best way to help rare plants like Spring Hill flax is to support habitat protection and responsible propagation efforts.

Sometimes the most meaningful gardens are those that help tell the story of conservation, one rare plant at a time.

Spring Hill Flax

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Linales

Family

Linaceae DC. ex Perleb - Flax family

Genus

Linum L. - flax

Species

Linum macrocarpum C.M. Rogers - Spring Hill flax

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