Globe amaranth, a.k.a. Gomphrena globosa, is a tropical annual in the Amaranthaceae family that originates in Central and South America, where its classic magenta blossoms dot the landscape.
Its plant cousins include amaranth, cock’s comb, and spinach.
Resembling clover flowers, the bright flowerheads are not comprised of petals, but tube-like bracts that hold tiny white or yellow flowers, visible at close range.
Able to withstand poor soil and drought conditions, globe amaranth blooms all summer and into the fall, dying off only with the first frost. And, thanks to cross breeding, it is now available in shades of pink, purple, red, orange, and white.
I tend to be a fan of perennials, but this is one annual that earns its keep in the garden!
Vigorous and Versatile
Available in sizes ranging from six inches to two feet, its compact nature and continuous bloom make it perfect for beds, borders, pots, and window boxes that get full sun.
In addition, the taller varieties make great cutting flowers for summer centerpieces, and all sizes dry beautifully for use in wreaths and everlasting arrangements.
Did you know that globe amaranth is also used to make a caffeine-free herbal tea?
As a tropical plant, G. globosa has a high tolerance for heat, and does best in warm, dry areas. If a climate is too cool or wet, the plant may be susceptible to leaf spot.
If you’re growing in containers, be sure they have drainage holes, and place some small stones, or broken bits of an old terra cotta pot, in the bottom before filling with potting soil.
Gomphrena globosa Plant Facts
- Average moisture
- Average, well-drained soil
- Blooms summer to frost
- Compact annual
- Easy to grow from seed
- Excellent fresh or dried bouquet flower
- Full sun
- Hairy foliage
- Long-lasting colors including original magenta, and cultivated shades of pink, purple, red, orange, and white
- Tolerates heat and drought
- True species may reach two feet in height
- Cultivars may be dwarf or full size
- Zones 2 to 11
Where to Buy
A package of 1000 mixed pink, purple, and white globe amaranth seeds is available from True Leaf Market.
This is a dwarf variety that reaches six inches in height.
Robust and Rewarding
When we buy seed, we expect a good return for our investment.
In my opinion, plants that provide rich color and texture late into the summer fit the bill. And G. globosa goes right on until frost!
Also, I especially enjoy arranging flowers and foliage from the backyard, and G. globosa is beautiful both fresh and dried.
Prepare a place for this attractive annual in your garden. You’re going to love its cheerful everlasting blossoms.
Have you had success with globe amaranth at your house? Tell us about your experience with this continuously flowering annual in the comments section below.
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Product photos via Thrive Market. Uncredited photos: Shutterstock.
The staff at Gardener’s Path are not medical professionals and this article should not be construed as medical advice intended to assess, diagnose, prescribe, or promise cure. Gardener’s Path and Ask the Experts, LLC assume no liability for the use or misuse of the material presented above. Always consult with a medical professional before changing your diet or using plant-based remedies or supplements for health and wellness.
About Nan Schiller
Nan Schiller is a writer with deep roots in the soil of southeastern Pennsylvania. Her background includes landscape and floral design, a BS in business from Villanova University, and a Certificate of Merit in floral design from Longwood Gardens. An advocate of organic gardening with native plants, she’s always got dirt under her nails and freckles on her nose. With wit and hopefully some wisdom, she shares what she’s learned and is always ready to dig into a new project!