North America Native Plant

Tricardia

Botanical name: Tricardia

USDA symbol: TRICA

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Tricardia: A Mysterious Native Forb Worth Knowing Meet Tricardia, one of nature’s more elusive characters in the native plant world. This perennial forb might not be on every gardener’s radar, but for those who appreciate rare and understated native plants, it offers a unique opportunity to grow something truly special ...

Tricardia: A Mysterious Native Forb Worth Knowing

Meet Tricardia, one of nature’s more elusive characters in the native plant world. This perennial forb might not be on every gardener’s radar, but for those who appreciate rare and understated native plants, it offers a unique opportunity to grow something truly special in your landscape.

What Exactly Is Tricardia?

Tricardia is a native perennial forb, which means it’s an herbaceous plant that lacks significant woody tissue above ground. Think of it as nature’s version of a low-key wildflower – it comes back year after year but maintains a soft, non-woody structure. As a dicot, it belongs to the group of flowering plants that typically have broad leaves and complex flower structures.

Where Does Tricardia Call Home?

This native beauty has made itself at home across four western states: Arizona, California, Nevada, and Utah. Its presence in these diverse landscapes suggests it’s adapted to the varied conditions of the American Southwest, from desert valleys to mountain slopes.

Should You Grow Tricardia in Your Garden?

Here’s where things get interesting – and a bit challenging. Tricardia is something of a botanical mystery, with very limited information available about its specific growing requirements, appearance, or ecological benefits. This rarity could be both a blessing and a concern for potential gardeners.

The Reality Check

If you’re considering adding Tricardia to your native plant collection, you’ll need to be prepared for some detective work. The lack of readily available cultivation information means you’ll be venturing into relatively uncharted gardening territory. This could appeal to adventurous gardeners who enjoy experimenting with unusual plants, but it might frustrate those who prefer well-documented growing guides.

Growing Considerations

Since specific growing requirements for Tricardia are not well-documented, your best bet is to mimic the conditions of its native range:

  • Focus on the climate and soil conditions typical of Arizona, California, Nevada, and Utah
  • Consider well-draining soils, as most southwestern natives prefer good drainage
  • Plan for minimal water requirements once established
  • Provide protection from extreme weather if you’re outside its native range

A Word About Sourcing

If you do decide to pursue growing Tricardia, sourcing will likely be your biggest challenge. Given its apparent rarity, it’s crucial to only obtain plants or seeds from reputable sources that practice ethical wildcrafting or propagation. Never collect from wild populations, as this could further threaten already limited populations.

The Bottom Line

Tricardia represents the kind of native plant that appeals to collectors and botanical enthusiasts rather than mainstream gardeners. While its rarity makes it intriguing, the lack of cultivation information and potential difficulty in sourcing means it’s not the best choice for beginning native plant gardeners.

If you’re drawn to the idea of growing rare southwestern natives but want something more accessible, consider better-documented alternatives like desert marigold, brittlebush, or desert lupine. These plants offer the satisfaction of growing authentic regional natives with the added bonus of established growing guides and more reliable sources.

For those determined to explore the mysterious world of Tricardia, approach it as a botanical adventure rather than a sure bet for garden success. With patience, research, and responsible sourcing, you might just become one of the few gardeners successfully cultivating this enigmatic native forb.

Tricardia

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

Solanales

Family

Hydrophyllaceae R. Br. - Waterleaf family

Genus

Tricardia Torr. ex S. Watson - tricardia

Species

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