North America Native Plant

Schwalbea

Botanical name: Schwalbea

USDA symbol: SCHWA

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Schwalbea: The Mysterious Parasitic Wildflower You Shouldn’t Plant If you’ve stumbled across the name schwalbea in your native plant research, you might be wondering if this perennial forb would make a good addition to your garden. Here’s the short answer: it won’t. But the story of this fascinating plant is ...

Schwalbea: The Mysterious Parasitic Wildflower You Shouldn’t Plant

If you’ve stumbled across the name schwalbea in your native plant research, you might be wondering if this perennial forb would make a good addition to your garden. Here’s the short answer: it won’t. But the story of this fascinating plant is worth telling, especially since it’s one of our rarest native species.

What is Schwalbea?

Schwalbea, scientifically known as Schwalbea americana or American chaffseed, is a perennial herbaceous plant that’s native to the lower 48 states. Unlike the showy wildflowers we typically think of for native gardens, schwalbea is what botanists call a hemiparasite—it literally steals nutrients from other plants to survive.

This quirky plant produces small, inconspicuous yellowish flowers and has a rather unremarkable appearance. But don’t let its humble looks fool you—this little forb plays a unique role in some of our most threatened ecosystems.

Where Does Schwalbea Grow?

Historically, schwalbea could be found across much of the eastern United States, including Alabama, Connecticut, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Massachusetts, Mississippi, New Jersey, New York, North Carolina, South Carolina, Tennessee, Texas, and Virginia.

However, could be found is the key phrase here. This plant has become incredibly rare, disappearing from most of its original range due to habitat loss and fire suppression.

Why You Shouldn’t Plant Schwalbea (Even Though It’s Native)

It’s federally endangered: Schwalbea americana is listed as an endangered species under the Endangered Species Act. This means it’s illegal to collect from the wild, and even if you could obtain seeds legally, you’d be dealing with one of our continent’s rarest plants.

It’s nearly impossible to grow: As a parasitic plant, schwalbea depends on specific host grasses for survival. It can’t simply be planted in your garden bed like other native wildflowers—it needs very particular growing conditions that are extremely difficult to replicate.

It’s not garden-worthy anyway: Even if you could grow it successfully, schwalbea lacks the ornamental appeal that most gardeners seek. Its flowers are small and unremarkable, and the plant itself doesn’t provide the visual impact of other native species.

Growing Conditions (For Educational Purposes Only)

In its natural habitat, schwalbea grows in:

  • Sandy, acidic soils
  • Open areas maintained by periodic fires
  • Coastal plain habitats
  • USDA hardiness zones 6-9
  • Areas with specific host grasses that it can parasitize

The plant requires very specific soil chemistry and depends entirely on its relationship with host plants, making cultivation virtually impossible for home gardeners.

Better Native Alternatives for Your Garden

Instead of trying to grow this rare and challenging species, consider these beautiful native alternatives that will thrive in your garden and support local wildlife:

  • Wild bergamot (Monarda fistulosa) – attracts bees and butterflies
  • Purple coneflower (Echinacea purpurea) – gorgeous flowers, bird-friendly seeds
  • Black-eyed Susan (Rudbeckia fulgida) – bright, cheerful blooms
  • Wild ginger (Asarum canadense) – excellent native groundcover

The Takeaway

While schwalbea is a fascinating example of nature’s complexity and an important part of our native plant heritage, it’s not a plant for home gardens. Its endangered status, parasitic nature, and extremely specific growing requirements make it unsuitable for cultivation. Instead, focus your native gardening efforts on plants that will actually thrive in your space while supporting local ecosystems.

Sometimes the best way to appreciate a rare native plant is to support conservation efforts that protect its remaining wild populations, rather than trying to grow it ourselves.

Schwalbea

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

Scrophulariales

Family

Scrophulariaceae Juss. - Figwort family

Genus

Schwalbea L. - schwalbea

Species

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