North America Native Plant

Guadalupe Cryptantha

Botanical name: Cryptantha maritima var. maritima

USDA symbol: CRMAM

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Guadalupe Cryptantha: A Delicate Desert Native Worth Discovering Meet the Guadalupe cryptantha (Cryptantha maritima var. maritima), a charming little annual that’s proof that some of nature’s most interesting plants come in small packages. This modest desert native might not win any flower show awards, but it has a quiet beauty ...

Rare plant alert!

Region: Conservation status by state

Status: S5T2T4: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Subspecies or varieties is apparently secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the region or more than 10,000 individuals ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Guadalupe Cryptantha: A Delicate Desert Native Worth Discovering

Meet the Guadalupe cryptantha (Cryptantha maritima var. maritima), a charming little annual that’s proof that some of nature’s most interesting plants come in small packages. This modest desert native might not win any flower show awards, but it has a quiet beauty and ecological importance that makes it a worthy addition to the right garden.

What Makes Guadalupe Cryptantha Special

As a native forb of the southwestern United States, Guadalupe cryptantha has adapted to thrive in some pretty tough conditions. This annual herb belongs to the borage family and produces tiny white flowers arranged in distinctive coiled clusters that slowly unfurl as the plant blooms. While individual flowers are small, they create a delicate, almost ethereal appearance when viewed up close.

The plant’s conservation status (S5T2T4) indicates it may be uncommon in parts of its range, making it all the more special when you encounter it in the wild or successfully grow it in your garden.

Where You’ll Find It Growing Wild

Guadalupe cryptantha calls Arizona, California, and Nevada home, where it has adapted to the challenging conditions of desert and coastal environments. You’re most likely to spot it in sandy washes, rocky slopes, and other well-draining locations where many other plants struggle to survive.

Should You Grow Guadalupe Cryptantha?

This little native is perfect if you’re looking to:

  • Create an authentic southwestern desert garden
  • Support local pollinators with native blooms
  • Add interest to rock gardens or xeriscapes
  • Establish naturalized wildflower areas
  • Practice water-wise gardening

However, Guadalupe cryptantha isn’t for everyone. Skip this one if you prefer showy flowers, need plants for shady spots, or live outside USDA zones 8-10. Its annual nature also means you’ll need to replant each year.

Growing Guadalupe Cryptantha Successfully

The key to success with this desert native is remembering where it comes from. Here’s how to give it what it needs:

Sunlight: Full sun is essential. This plant has evolved under the intense southwestern sun and won’t perform well in shade.

Soil: Well-draining soil is absolutely critical. Sandy, rocky, or gravelly soils work best. Heavy clay or water-retentive soils are a recipe for disaster.

Water: Less is definitely more. Once established, this drought-tolerant native needs very little supplemental water. Overwatering is probably the fastest way to kill it.

Climate: Hardy in USDA zones 8-10, this plant thrives in hot, dry conditions and can handle temperature extremes typical of desert environments.

Planting and Care Tips

Since Guadalupe cryptantha is an annual, you’ll be starting fresh each year. Here’s how to set yourself up for success:

  • Direct sow seeds in fall for spring germination
  • Scatter seeds on prepared soil and lightly rake in
  • Water gently after planting, then wait for natural rainfall when possible
  • Avoid fertilizing – this plant actually prefers poor soils
  • Allow plants to self-seed for natural colonies

Wildlife and Pollinator Benefits

Don’t let the small flowers fool you – Guadalupe cryptantha pulls its weight when it comes to supporting local wildlife. The tiny blooms are perfectly sized for small native bees and other pollinators that might get overlooked by gardeners focused on larger, showier flowers. By including this native in your landscape, you’re providing important resources for specialized desert pollinators.

A Note on Conservation

Given its conservation status, it’s important to source Guadalupe cryptantha seeds or plants responsibly. Look for reputable native plant nurseries that collect seeds ethically or propagate plants rather than wild-collecting. This ensures you’re supporting conservation efforts rather than potentially harming wild populations.

The Bottom Line

Guadalupe cryptantha may be small and subtle, but it’s a perfect example of how native plants can add authentic character to southwestern gardens while supporting local ecosystems. If you’re creating a water-wise landscape in zones 8-10 and appreciate the quiet beauty of desert natives, this little annual deserves a spot in your garden. Just remember: sun, drainage, and restraint with the watering can are your keys to success!

Guadalupe Cryptantha

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

Lamiales

Family

Boraginaceae Juss. - Borage family

Genus

Cryptantha Lehm. ex G. Don - cryptantha

Species

Cryptantha maritima (Greene) Greene - Guadalupe cryptantha

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