North America Native Plant

Lacy Tansyaster

Botanical name: Machaeranthera pinnatifida pinnatifida

USDA symbol: MAPIP

Life cycle: perennial

Habit: subshrub

Native status: Native to Canada âš˜ Native to the lower 48 states  

Lacy Tansyaster: A Prairie Gem for Low-Maintenance Gardens If you’re looking for a native wildflower that combines delicate beauty with tough-as-nails resilience, let me introduce you to the lacy tansyaster (Machaeranthera pinnatifida pinnatifida). This charming prairie perennial might not be a household name, but it deserves a spot in every ...

Lacy Tansyaster: A Prairie Gem for Low-Maintenance Gardens

If you’re looking for a native wildflower that combines delicate beauty with tough-as-nails resilience, let me introduce you to the lacy tansyaster (Machaeranthera pinnatifida pinnatifida). This charming prairie perennial might not be a household name, but it deserves a spot in every native plant enthusiast’s garden.

What Makes Lacy Tansyaster Special?

The lacy tansyaster earns its common name from its deeply divided, lacy-looking leaves that create an almost fern-like texture in the garden. But the real show-stopper comes in late summer and fall when this unassuming plant bursts into bloom with clusters of small, daisy-like flowers. Each purple bloom features a bright yellow center that practically glows in the autumn light.

As a native North American perennial, this hardy forb has adapted to thrive in some of our continent’s most challenging environments. It’s a true survivor that brings both beauty and ecological value to your landscape.

Where Does Lacy Tansyaster Call Home?

This prairie native has quite an impressive range, stretching across much of central and western North America. You’ll find it growing naturally from the Canadian provinces of Alberta, Manitoba, and Saskatchewan down through the Great Plains and into the American Southwest. Its native range includes Arizona, Arkansas, Colorado, Idaho, Iowa, Kansas, Minnesota, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, South Dakota, Texas, Utah, and Wyoming.

Why Gardeners Love (and Should Love) Lacy Tansyaster

Here’s where this plant really shines: it’s practically maintenance-free once established. If you’re tired of babying high-maintenance flowers, the lacy tansyaster is your new best friend. Here’s why:

  • Drought tolerance: Once established, it laughs in the face of dry spells
  • Pollinator magnet: Butterflies and bees absolutely love the late-season blooms
  • Self-seeding: It’ll naturalize in your garden without becoming aggressive
  • Long bloom period: Flowers from late summer through fall when many other plants are calling it quits
  • Native plant benefits: Supports local ecosystems and wildlife

Perfect Garden Companions and Uses

Lacy tansyaster feels right at home in prairie gardens, wildflower meadows, and naturalized areas. It’s an excellent choice for xeriscaping and works beautifully in native plant gardens where you want that authentic wild prairie look. The plant pairs wonderfully with other prairie natives like little bluestem grass, purple coneflower, and black-eyed Susan.

Don’t expect this to be your formal garden’s centerpiece – it’s more of a let’s keep things natural and relaxed kind of plant. Think cottage gardens, prairie restorations, or that back corner where you want something pretty but low-fuss.

Growing Conditions: Keep It Simple

One of the best things about lacy tansyaster is that it’s not picky. Here’s what it prefers:

  • Sunlight: Full sun is ideal, though it can tolerate some light shade
  • Soil: Well-drained soils are essential – it won’t tolerate soggy conditions
  • Water: Drought tolerant once established; avoid overwatering
  • Hardiness: Thrives in USDA zones 3-8

Planting and Care Tips

Getting started with lacy tansyaster couldn’t be easier:

  • Plant in spring after the last frost date
  • Space plants about 12-18 inches apart
  • Water regularly during the first growing season to help establish roots
  • After that, step back and let nature do its thing
  • Deadhead spent flowers if you want to prevent self-seeding, or leave them for the birds
  • Cut back in late fall or early spring

A Few Things to Keep in Mind

While lacy tansyaster is generally well-behaved, it can self-seed in favorable conditions. Most gardeners consider this a bonus rather than a problem, but if you prefer more control, simply deadhead the spent flowers before they go to seed.

This isn’t a plant for formal, manicured landscapes or areas with heavy foot traffic. It’s best appreciated in more naturalized settings where its casual, prairie-style growth habit can shine.

The Bottom Line

If you’re ready to embrace native gardening and want a plant that delivers maximum beauty with minimum fuss, lacy tansyaster deserves serious consideration. It’s tough, beautiful, supports local pollinators, and asks for almost nothing in return. In a world of high-maintenance garden divas, sometimes the most rewarding plants are the ones that simply do their own thing – beautifully and reliably, year after year.

Lacy Tansyaster

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

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Machaeranthera Nees - tansyaster

Species

Machaeranthera pinnatifida (Hook.) Shinners - lacy tansyaster

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