North America Native Plant

Mexican Skullcap

Botanical name: Scutellaria potosina potosina var. tessellata

USDA symbol: SCPOT

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Scutellaria potosina Brandegee ssp. parviflora Epling (SCPOP)  âš˜  Scutellaria tessellata Epling (SCTE4)   

Mexican Skullcap: A Rare Native Treasure for Southwestern Gardens If you’re passionate about native plants and love discovering botanical gems, Mexican skullcap might just capture your heart. This little-known perennial herb brings a touch of wild southwestern charm to gardens, though it comes with some important considerations that every gardener ...

Rare plant alert!

Region: Conservation status by state

Status: S2S4: Status is uncertain but is somewhere between the following rankings: 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) ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Mexican Skullcap: A Rare Native Treasure for Southwestern Gardens

If you’re passionate about native plants and love discovering botanical gems, Mexican skullcap might just capture your heart. This little-known perennial herb brings a touch of wild southwestern charm to gardens, though it comes with some important considerations that every gardener should know before diving in.

What Makes Mexican Skullcap Special?

Mexican skullcap (Scutellaria potosina potosina var. tessellata) is a native perennial forb that belongs to the mint family. As a forb, it’s essentially an herbaceous flowering plant – think of it as nature’s way of creating a soft, non-woody plant that comes back year after year. Unlike shrubs or trees, this charming native keeps things low-key with its herbaceous growth habit.

You might also encounter this plant under its scientific synonyms, including Scutellaria potosina Brandegee ssp. parviflora or Scutellaria tessellata, but don’t let the fancy names intimidate you – it’s still the same delightful native species.

Where Does Mexican Skullcap Call Home?

This southwestern native has carved out its niche across three states: Arizona, New Mexico, and Texas. It’s perfectly adapted to the unique conditions of the American Southwest, making it a true regional treasure that embodies the spirit of its native landscape.

The Rarity Factor: Why This Matters

Here’s where things get interesting – and important. Mexican skullcap carries a Global Conservation Status of S2S4, which places it in a somewhat uncertain conservation category. This means we don’t have complete data on its population status, but there are enough concerns to warrant attention.

If you’re considering adding this native beauty to your garden, please make sure you’re sourcing it responsibly. Never collect plants from the wild, and always purchase from reputable native plant nurseries that propagate their own stock. This ensures you’re supporting conservation efforts rather than potentially harming wild populations.

Is Mexican Skullcap Right for Your Garden?

The honest truth? This plant is something of a botanical mystery when it comes to detailed growing information. While we know it’s a hardy perennial native that’s adapted to southwestern conditions, specific details about its exact growing preferences, size, and garden performance are limited.

Here’s what we do know that might help you decide:

  • It’s a true native to the American Southwest
  • As a perennial, it should return year after year once established
  • Being a forb, it likely provides a softer texture compared to woody plants
  • Its native status means it’s evolved to thrive in regional conditions

Growing Mexican Skullcap: Working with Limited Information

Since specific growing information for this variety is scarce, you’ll be somewhat pioneering if you choose to grow it. Based on its native range in Arizona, New Mexico, and Texas, you can make some educated guesses about its preferences:

  • It likely prefers well-draining soils typical of southwestern regions
  • As a southwestern native, it probably appreciates full sun to partial shade
  • Once established, it should be relatively drought-tolerant
  • It’s probably adapted to alkaline soils common in its native range

The Bottom Line

Mexican skullcap represents both an opportunity and a responsibility. On one hand, growing native plants like this supports local ecosystems and celebrates regional botanical heritage. On the other hand, its uncertain conservation status means we need to approach it thoughtfully.

If you’re drawn to this rare native, go for it – but do it right. Source plants responsibly, give it the care it deserves, and consider yourself a steward of southwestern botanical diversity. Just remember that with limited growing information available, you might be learning alongside your plant as it settles into your garden.

For gardeners seeking similar native options with more established growing information, consider exploring other southwestern natives in the Scutellaria genus or consulting with local native plant societies for recommendations of well-documented alternatives that might give you that same regional native appeal with more predictable results.

Mexican Skullcap

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

Lamiaceae Martinov - Mint family

Genus

Scutellaria L. - skullcap

Species

Scutellaria potosina Brandegee - Mexican skullcap

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