North America Non-native Plant

Ramtilla

Botanical name: Guizotia abyssinica

USDA symbol: GUAB

Life cycle: annual

Habit: forb

Native status: A waif, a non-native that isn't naturalized in Canada âš˜ Non-native, reproduces and persists in the wild in the lower 48 states  

Ramtilla: An Unusual Annual with Golden Blooms and Birdseed Potential If you’ve never heard of ramtilla (Guizotia abyssinica), you’re not alone! This quirky annual forb isn’t your typical garden center find, but it might just surprise you with its cheerful yellow flowers and interesting backstory. Sometimes called niger seed by ...

Ramtilla: An Unusual Annual with Golden Blooms and Birdseed Potential

If you’ve never heard of ramtilla (Guizotia abyssinica), you’re not alone! This quirky annual forb isn’t your typical garden center find, but it might just surprise you with its cheerful yellow flowers and interesting backstory. Sometimes called niger seed by bird enthusiasts, ramtilla has been quietly making appearances in North American gardens and wild spaces.

What Exactly Is Ramtilla?

Ramtilla is an annual forb, which simply means it’s a non-woody plant that completes its entire life cycle in one growing season. As a member of the sunflower family, it shares that familiar daisy-like flower structure that many of us love. This plant can grow quite tall – typically reaching 3 to 6 feet in height – with a bushy, branching growth habit that fills out nicely in the garden.

Where Does It Come From?

Originally hailing from the Ethiopian Highlands in East Africa, ramtilla has traveled far from its native home. In North America, it’s considered a non-native species that has established itself in various states including California, Connecticut, Illinois, Kansas, Maryland, Massachusetts, Michigan, New Jersey, New York, Ohio, Pennsylvania, Tennessee, Virginia, and Wisconsin, as well as Ontario, Canada.

Should You Grow Ramtilla in Your Garden?

Here’s where things get interesting. While ramtilla isn’t native to North America, it’s also not currently listed as invasive or noxious in most areas. This puts it in a neutral zone – it won’t necessarily harm your local ecosystem, but it won’t provide the same ecological benefits as native plants either.

Reasons you might want to try ramtilla:

  • Produces cheerful yellow flowers that attract pollinators like bees
  • Seeds are highly valued by finches and other small birds
  • Adds height and structure to annual flower borders
  • Relatively easy to grow from seed
  • Interesting conversation starter for curious garden visitors

However, if you’re focused on supporting native wildlife and ecosystems, you might consider native alternatives like wild bergamot, purple coneflower, or native sunflowers instead.

Growing Ramtilla Successfully

Getting Started

Ramtilla thrives in full sun locations with well-drained soil. As an annual, you’ll need to start fresh each year, but the good news is that it’s quite straightforward to grow from seed.

Planting Tips

  • Direct sow seeds in spring after the last frost date
  • Plant in USDA hardiness zones 3-10 (grown as annual)
  • Space plants about 12-18 inches apart to allow for their bushy growth
  • Seeds need warm soil to germinate properly

Care and Maintenance

Once established, ramtilla is fairly low-maintenance. Provide regular water during dry spells, especially while plants are getting established. The plants will naturally branch out and don’t typically require staking, even at their full 3-6 foot height.

If you’re growing ramtilla for birdseed, let the flowers go to seed naturally. The small black seeds that develop are what make this plant so attractive to goldfinches and other seed-eating birds.

A Word About Wildlife Benefits

While ramtilla does provide some benefits to wildlife – particularly as a nectar source for pollinators and seed source for birds – remember that native plants will always provide more comprehensive ecosystem support. If you do choose to grow ramtilla, consider pairing it with native species to create a more balanced garden environment.

The Bottom Line

Ramtilla is one of those plants that occupies an interesting middle ground in the gardening world. It’s not native, but it’s not particularly problematic either. If you’re curious about trying something different and don’t mind dedicating some space to a non-native annual, ramtilla might be worth a try – especially if you love feeding birds or want to add some unusual height to your flower borders. Just remember to also include plenty of native plants in your garden to support your local ecosystem!

Ramtilla

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

Guizotia Cass. - guizotia

Species

Guizotia abyssinica (L. f.) Cass. - ramtilla

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