North America Non-native Plant

Achotillo

Botanical name: Caryocar amygdaliferum

USDA symbol: CAAM28

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

Achotillo: A Mysterious South American Native Worth Knowing About If you’ve stumbled across the name achotillo in your plant research adventures, you’ve discovered one of those intriguing botanical mysteries that keeps plant enthusiasts on their toes. Known scientifically as Caryocar amygdaliferum, this South American native is part of the Caryocaraceae ...

Achotillo: A Mysterious South American Native Worth Knowing About

If you’ve stumbled across the name achotillo in your plant research adventures, you’ve discovered one of those intriguing botanical mysteries that keeps plant enthusiasts on their toes. Known scientifically as Caryocar amygdaliferum, this South American native is part of the Caryocaraceae family – a group that’s not exactly common in most North American gardens.

What We Know About Achotillo

Achotillo hails from South America, where it grows as part of the region’s diverse flora. Like many plants from tropical and subtropical regions of South America, this species has evolved in climates quite different from most North American growing zones.

The Challenge for North American Gardeners

Here’s where things get interesting – and a bit challenging. While achotillo exists in botanical records and scientific literature, detailed horticultural information about growing this specific species is remarkably scarce. This isn’t uncommon for many South American natives that haven’t been widely cultivated outside their native range.

What this means for you as a gardener is that reliable information about:

  • Specific growing conditions and care requirements
  • Cold hardiness and suitable USDA zones
  • Mature size and growth habits
  • Propagation methods
  • Availability from nurseries

…is simply not readily available through standard gardening resources.

Should You Try Growing Achotillo?

Given the lack of specific cultivation information and the plant’s South American origins, achotillo would be an extremely challenging choice for most North American gardeners. Without knowing its cold tolerance, soil preferences, or basic care requirements, success would be largely a matter of educated guesswork.

If you’re drawn to the idea of growing South American natives, you might consider looking into better-documented species from the region that have established cultivation guidelines. Many botanical gardens and specialty nurseries focus on well-researched plants with known growing requirements.

For the Truly Adventurous

If you’re determined to explore this botanical mystery, your best bet would be connecting with:

  • Botanical gardens with South American collections
  • University research programs focusing on tropical botany
  • Specialty plant societies dedicated to rare or unusual species

These resources might have access to seeds or additional cultivation insights that aren’t available through conventional gardening channels.

The Bottom Line

Achotillo remains one of those plants that’s more of a botanical curiosity than a practical garden choice for most of us. While there’s something appealing about the mystery surrounding lesser-known species, successful gardening usually relies on choosing plants with well-documented care requirements and proven adaptability to your local growing conditions.

Sometimes the most rewarding garden adventures come from thoroughly understanding and successfully growing the amazing native plants that are already well-suited to your region!

Achotillo

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Theales

Family

Caryocaraceae Voigt - Souari family

Genus

Caryocar F. Allam. ex L. - caryocar

Species

Caryocar amygdaliferum Mutis - achotillo

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