North America Native Plant

Amethyst Stickseed

Botanical name: Hackelia amethystina

USDA symbol: HAAM

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Amethyst Stickseed: A Rare California Native Worth Protecting in Your Garden Meet amethyst stickseed (Hackelia amethystina), a charming yet vulnerable native wildflower that deserves a special place in California’s native plant gardens. This delicate perennial forb might not be the showiest plant in your garden, but its conservation story and ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Amethyst Stickseed: A Rare California Native Worth Protecting in Your Garden

Meet amethyst stickseed (Hackelia amethystina), a charming yet vulnerable native wildflower that deserves a special place in California’s native plant gardens. This delicate perennial forb might not be the showiest plant in your garden, but its conservation story and quiet beauty make it a meaningful addition for dedicated native plant enthusiasts.

A Truly California Original

Amethyst stickseed is a California endemic, meaning it grows nowhere else in the world naturally. This herbaceous perennial calls only the Golden State home, making it a true botanical treasure. As a native species to the lower 48 states, specifically California, it represents millions of years of evolution perfectly adapted to local conditions.

Understanding Its Rarity Status

Important Conservation Note: Hackelia amethystina has a Global Conservation Status of S3, meaning it’s considered vulnerable. This classification indicates the plant is either very rare throughout its range or faces other factors that make it vulnerable to disappearing entirely. With typically only 21 to 100 known occurrences, this species needs our help to survive.

If you choose to grow amethyst stickseed, please ensure you source it only from reputable native plant nurseries that propagate their stock responsibly. Never collect seeds or plants from wild populations.

What Makes Amethyst Stickseed Special

This modest wildflower belongs to the borage family and lives up to its stickseed common name – its small fruits have tiny hooks that attach to passing animals (and gardeners!). As a forb, it’s an herbaceous plant without woody stems, dying back to ground level each winter and returning fresh each spring.

The amethyst in its name hints at its delicate blue to purple flowers, which appear in small, coiled clusters typical of the borage family. While not a garden showstopper, its subtle charm and rarity make it a conversation starter among fellow native plant enthusiasts.

Growing Amethyst Stickseed Successfully

Since specific growing information for this rare species is limited, we can draw from its natural habitat preferences and related species requirements:

  • Climate: Suitable for USDA zones 7-9, matching California’s diverse climate regions
  • Soil: Well-draining soils are essential; avoid waterlogged conditions
  • Light: Partial shade to full sun, with some afternoon protection in hotter areas
  • Water: Moderate water needs during establishment, becoming more drought-tolerant with maturity
  • Maintenance: Minimal care required once established

Perfect Garden Roles for This Rare Beauty

Amethyst stickseed works beautifully in several garden settings:

  • Native California plant collections
  • Wildflower meadow gardens
  • Rock gardens with good drainage
  • Naturalized landscape areas
  • Conservation-focused native gardens

Supporting Local Wildlife

While specific pollinator data for amethyst stickseed is limited, plants in the borage family typically attract small native bees, butterflies, and other beneficial insects. By growing this rare native, you’re not just adding to your garden’s diversity – you’re potentially supporting specialized pollinators that have co-evolved with California’s unique flora.

Planting and Care Tips

Given its rarity, treat amethyst stickseed as a special garden resident:

  • Start with nursery-grown plants rather than attempting direct seeding
  • Plant in fall for best establishment before summer heat
  • Provide consistent moisture during the first growing season
  • Once established, reduce watering to encourage deep root development
  • Allow plants to self-seed if conditions are right, potentially increasing your population
  • Keep detailed records of your plants’ performance to contribute to conservation knowledge

A Garden with Purpose

Growing amethyst stickseed isn’t just about adding another plant to your garden – it’s about participating in conservation. By cultivating this vulnerable species responsibly, you become part of a network of gardeners helping preserve California’s unique botanical heritage. While it may not provide the instant gratification of showier plants, the satisfaction of nurturing a rare native species brings its own special reward.

Remember, every garden that includes responsibly sourced native plants like amethyst stickseed becomes a small sanctuary, potentially serving as a genetic reservoir for future conservation efforts. In a world where habitat loss threatens so many species, your garden could play a vital role in this plant’s survival story.

Amethyst Stickseed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Lamiales

Family

Boraginaceae Juss. - Borage family

Genus

Hackelia Opiz - stickseed

Species

Hackelia amethystina J.T. Howell - amethyst stickseed

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