North America Non-native Plant

Indigofera Circinella

Botanical name: Indigofera circinella

USDA symbol: INCI2

Native status: Not native but doesn't reproduce and persist in the wild

Indigofera circinella: A Mysterious Member of the Indigo Family If you’ve stumbled across the name Indigofera circinella in your plant research, you might be scratching your head wondering what exactly this plant is all about. Well, you’re not alone! This particular species is something of an enigma in the gardening ...

Indigofera circinella: A Mysterious Member of the Indigo Family

If you’ve stumbled across the name Indigofera circinella in your plant research, you might be scratching your head wondering what exactly this plant is all about. Well, you’re not alone! This particular species is something of an enigma in the gardening world, with very little reliable information available about its characteristics, native range, or growing requirements.

What We Know (And Don’t Know)

Indigofera circinella belongs to the diverse Indigofera genus, which is part of the legume family (Fabaceae). The Indigofera genus includes over 750 species worldwide, many of which are known for their beautiful flowers and their historical use in producing indigo dye. However, when it comes to I. circinella specifically, the details get fuzzy.

Unfortunately, comprehensive information about this species’ native range, appearance, growing conditions, and garden suitability is not readily available in standard botanical references. This could indicate that it’s either:

  • An extremely rare or localized species
  • A species that may have been reclassified or renamed
  • A name that may not be currently recognized in mainstream botanical databases

Geographic Distribution

The geographic distribution of Indigofera circinella remains unclear based on available sources.

Should You Try to Grow It?

Given the lack of reliable information about Indigofera circinella’s growing requirements, hardiness zones, care needs, and even its availability in the nursery trade, it’s not a plant we can recommend for home gardeners at this time.

Better Alternatives in the Indigofera Family

If you’re drawn to the Indigofera genus, there are several well-documented species that make excellent garden plants:

  • Indigofera amblyantha – A hardy shrub with pink flowers
  • Indigofera kirilowii – Features lovely rose-pink flower clusters
  • Indigofera pseudotinctoria – Known for its graceful habit and pink blooms

These alternatives offer the charm of the Indigofera genus with the added benefit of established growing information and availability through specialty nurseries.

The Bottom Line

While Indigofera circinella remains a botanical mystery for now, the plant world is full of discoveries and rediscoveries. If you’re specifically interested in this species for research purposes, consider reaching out to botanical gardens, herbaria, or plant taxonomists who might have more specialized knowledge.

For the average gardener looking to add some indigo family charm to their landscape, stick with the better-known Indigofera species that have proven garden performance and readily available growing guides. Your garden (and your sanity) will thank you!

Indigofera Circinella

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Indigofera L. - indigo

Species

Indigofera circinella Baker f.

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