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North America Non-native Plant

Largefruit Amaranth

Largefruit Amaranth: An Unassuming Annual Worth Knowing About Meet largefruit amaranth (Amaranthus deflexus), a humble little plant that probably won’t win any beauty contests but has quietly made itself at home across much of the United States. This annual forb might not be the flashiest addition to your garden, but ...

Largefruit Amaranth: An Unassuming Annual Worth Knowing About

Meet largefruit amaranth (Amaranthus deflexus), a humble little plant that probably won’t win any beauty contests but has quietly made itself at home across much of the United States. This annual forb might not be the flashiest addition to your garden, but it’s got some interesting qualities that make it worth understanding.

What Exactly Is Largefruit Amaranth?

Largefruit amaranth is a non-native annual that originally hails from the Mediterranean region. As a forb, it’s essentially an herbaceous plant without woody stems – think of it as the plant world’s equivalent of a humble groundcover that keeps things simple. Despite its foreign origins, this adaptable little plant has established itself across fourteen states, from California to Massachusetts and down to Florida.

Currently, you can find largefruit amaranth growing in Alabama, California, Florida, Georgia, Louisiana, Maryland, Massachusetts, New Jersey, New York, Ohio, Oregon, Pennsylvania, Tennessee, and Virginia. It’s managed to spread and reproduce on its own without human help, which says something about its resilience.

Should You Grow Largefruit Amaranth?

Here’s where things get interesting – and a bit complicated. Largefruit amaranth isn’t going to wow anyone with stunning blooms or dramatic foliage. Its flowers are small, greenish, and arranged in dense, somewhat unremarkable clusters. This isn’t a plant you’d feature in your front yard flower bed or use as a centerpiece in landscape design.

However, if you’re someone who appreciates tough, low-maintenance plants that can handle challenging conditions, largefruit amaranth might have some appeal. It’s incredibly adaptable and can thrive in poor soils where other plants struggle.

Growing Conditions and Care

One thing you can say about largefruit amaranth – it’s not picky. This hardy annual can adapt to various growing conditions and is particularly tolerant of:

  • Poor, disturbed soils
  • Drought conditions
  • Full sun exposure
  • Minimal care and attention

As an annual, it completes its life cycle in one growing season and can theoretically grow in USDA hardiness zones 3-11. The plant self-seeds readily, which means once established, it may continue to pop up year after year without any effort on your part.

Wildlife and Pollinator Value

While largefruit amaranth won’t attract butterflies like a native wildflower meadow would, its flowers do provide some pollen for smaller insects. However, the wildlife benefits are relatively modest compared to native alternatives.

A Word About Native Alternatives

Since largefruit amaranth isn’t native to North America, consider exploring native amaranth species that could provide similar resilience while supporting local ecosystems more effectively. Native alternatives like Palmer amaranth or red amaranth offer comparable toughness while providing better wildlife value and maintaining ecological balance.

The Bottom Line

Largefruit amaranth is one of those plants that exists quietly in the background – neither particularly beautiful nor particularly problematic. If you’re looking for a truly low-maintenance annual that can handle tough conditions, it might serve a purpose in disturbed areas or challenging spots in your landscape. However, given its non-native status, you might want to consider native alternatives that can provide similar benefits while supporting local wildlife and maintaining regional ecological integrity.

Sometimes the most interesting plants aren’t the showstoppers – they’re the reliable workhorses that teach us about adaptation and resilience.

Largefruit Amaranth

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Caryophyllales

Family

Amaranthaceae Martinov - Amaranth family

Genus

Amaranthus L. - pigweed

Species

Amaranthus deflexus L. - largefruit amaranth

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