North America Non-native Plant

Lagascea

Botanical name: Lagascea

USDA symbol: LAGAS

Life cycle: annual

Habit: subshrub

Native status: It's either native or not native in the lower 48 states âš˜ Non-native, reproduces and persists in the wild in Puerto Rico âš˜ Non-native, reproduces and persists in the wild in the U.S. Virgin Islands  

Lagascea: The Mystery Plant That’s Probably Not on Your Garden Wishlist If you’ve stumbled across the name lagascea in your plant research, you might be wondering what exactly this little-known plant is all about. Don’t worry if you’ve never heard of it – you’re definitely not alone! Lagascea is one ...

Lagascea: The Mystery Plant That’s Probably Not on Your Garden Wishlist

If you’ve stumbled across the name lagascea in your plant research, you might be wondering what exactly this little-known plant is all about. Don’t worry if you’ve never heard of it – you’re definitely not alone! Lagascea is one of those plants that flies under the radar in most gardening circles, and there’s a pretty good reason for that.

What Exactly Is Lagascea?

Lagascea is a genus of plants that falls into the category of forbs – basically, that’s garden-speak for non-woody flowering plants. Think of it as an herb that doesn’t have any significant woody stems above ground. These plants can be either annual (living for one year) or perennial (coming back year after year), and they keep their growing points right at or below ground level.

As a member of the forb family, lagascea is the kind of plant that puts all its energy into flowers and leaves rather than building up woody structure like shrubs or trees.

Where Does Lagascea Call Home?

Here’s where things get interesting – lagascea isn’t actually native to most of the United States. While you can find it growing in Arizona, Florida, Puerto Rico, and the U.S. Virgin Islands, it’s considered non-native to the continental U.S. In Puerto Rico and the Virgin Islands, it has naturalized, meaning it’s settled in and reproduces on its own without any human help.

Should You Grow Lagascea in Your Garden?

This is where we hit a bit of a roadblock. While lagascea isn’t flagged as invasive or problematic, there’s remarkably little information available about growing it in home gardens. This usually means one of two things: either it’s incredibly easy to grow and nobody bothers writing about it, or it’s not particularly garden-worthy.

Given its low profile in the gardening world, you’re probably better off exploring native alternatives that will provide more reliable results and better support for local ecosystems.

Why Choose Native Plants Instead?

Since lagascea isn’t native to most of the U.S., consider these native alternatives that might scratch the same itch:

  • Native wildflowers in the Asteraceae (sunflower) family
  • Regional native forbs that support local wildlife
  • Native perennial herbs suited to your specific climate zone

The Bottom Line on Lagascea

Sometimes in the plant world, you come across species that are botanically interesting but just aren’t cut out for garden stardom. Lagascea seems to fall into this category – it’s not harmful, but it’s also not particularly compelling for home gardeners.

If you’re dead set on trying something unusual in your garden, you’ll likely have better luck with well-documented native plants that come with plenty of growing advice and proven garden performance. Your local extension office or native plant society can point you toward exciting native options that will thrive in your specific area and provide benefits to local wildlife.

After all, the best garden plants are the ones that make both you and your local ecosystem happy – and for that, native species are usually your best bet!

Lagascea

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

Lagascea Cav. - lagascea

Species

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