North America Native Plant

Henrya

Botanical name: Henrya

USDA symbol: HENRY

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Henrya: A Mysterious Arizona Native Worth Knowing If you’re looking for something truly unique in your native plant garden, henrya (Henrya) might just catch your attention. This perennial forb represents one of those fascinating native plants that quietly calls Arizona home, though you won’t find it splashed across every gardening ...

Henrya: A Mysterious Arizona Native Worth Knowing

If you’re looking for something truly unique in your native plant garden, henrya (Henrya) might just catch your attention. This perennial forb represents one of those fascinating native plants that quietly calls Arizona home, though you won’t find it splashed across every gardening magazine cover.

What Exactly Is Henrya?

Henrya is a perennial forb native to the United States, specifically found growing in Arizona. As a forb, it’s essentially an herbaceous flowering plant—think of it as nature’s way of creating a plant that’s neither a grass nor a woody shrub, but something beautifully in between. These plants lack significant woody tissue above ground, instead relying on underground perennating buds to return year after year.

Where Does Henrya Grow?

This native plant has made Arizona its home within the lower 48 states. While its exact distribution within Arizona isn’t widely documented, its presence in the state makes it a legitimate choice for gardeners looking to support local ecosystems with truly native species.

Should You Plant Henrya in Your Garden?

Here’s where things get a bit tricky with henrya. While it’s undoubtedly a native species deserving of respect, the limited available information about its specific growing requirements, appearance, and garden performance makes it a challenging recommendation for most home gardeners.

The Reality Check

If you’re set on growing henrya, you’ll need to be something of a plant detective. The lack of readily available cultivation information suggests this might be:

  • A rare or uncommon species in cultivation
  • A plant with very specific habitat requirements
  • Better suited for specialized native plant enthusiasts rather than general gardeners

Alternative Native Arizona Forbs

If you’re drawn to the idea of native Arizona forbs but want something with proven garden performance, consider these better-documented alternatives:

  • Desert marigold (Baileya multiradiata)
  • Ghost plant (Graptopetalum paraguayense)
  • Fairy duster (Calliandra eriophylla)
  • Desert lupine (Lupinus arizonicus)

Growing Henrya: What We Know

As a perennial forb native to Arizona, henrya would likely prefer:

  • Well-draining soils typical of Arizona landscapes
  • Full sun to partial shade conditions
  • Minimal supplemental watering once established
  • Protection from extreme cold if grown outside its native range

The Bottom Line

Henrya represents the fascinating diversity of native plants that call Arizona home. However, its obscure nature and lack of cultivation information make it more of a botanical curiosity than a practical garden choice for most gardeners. If you’re committed to growing truly local native plants, consider connecting with Arizona native plant societies or botanical experts who might have more specific knowledge about this elusive species.

For most gardeners passionate about supporting native ecosystems, focusing on well-documented Arizona natives will provide better results and more reliable support for local wildlife. Sometimes the most responsible approach to rare or poorly understood natives is simply appreciating them in their natural habitats while choosing better-known species for our gardens.

Henrya

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

Scrophulariales

Family

Acanthaceae Juss. - Acanthus family

Genus

Henrya Nees ex Benth. - henrya

Species

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