North America Native Plant

Macdougal’s Bluebells

Botanical name: Mertensia macdougalii

USDA symbol: MEMA2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Macdougal’s Bluebells: A Rare Arizona Native Worth Protecting If you’re looking to add a touch of rare beauty to your shade garden, Macdougal’s bluebells (Mertensia macdougalii) might just be the hidden gem you’ve been searching for. This delicate perennial wildflower is like finding a botanical treasure in the mountains of ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Macdougal’s Bluebells: A Rare Arizona Native Worth Protecting

If you’re looking to add a touch of rare beauty to your shade garden, Macdougal’s bluebells (Mertensia macdougalii) might just be the hidden gem you’ve been searching for. This delicate perennial wildflower is like finding a botanical treasure in the mountains of Arizona – which is exactly where it calls home!

What Makes Macdougal’s Bluebells Special?

Macdougal’s bluebells is a charming herbaceous perennial that belongs to the borage family. As a forb, it lacks woody stems and instead produces soft, leafy growth that emerges fresh each growing season. What really sets this plant apart are its stunning drooping clusters of small, bell-shaped flowers in the most gorgeous shade of blue – the kind of blue that makes you stop and stare.

Where Does It Grow Naturally?

This native beauty is found exclusively in Arizona’s mountainous regions, making it a true southwestern treasure. As a plant native to the lower 48 states, it has evolved specifically to thrive in the unique conditions of Arizona’s higher elevations.

A Word of Caution: This Plant Needs Our Protection

Here’s something important every gardener should know: Macdougal’s bluebells has a Global Conservation Status of S3, which means it’s considered vulnerable. With only an estimated 21 to 100 occurrences and between 3,000 to 10,000 individuals remaining in the wild, this plant is quite rare. If you’re interested in growing it, please only source seeds or plants from reputable native plant nurseries that practice ethical propagation – never collect from wild populations.

Garden Design Ideas

Macdougal’s bluebells shines brightest in:

  • Native plant gardens that celebrate southwestern flora
  • Shade gardens where its blue flowers can provide a cool color contrast
  • Woodland garden settings that mimic its natural mountain habitat
  • Naturalistic landscapes focused on conservation

Growing Conditions

To keep your Macdougal’s bluebells happy, try to recreate its mountain home environment:

  • Light: Partial to full shade – protect from intense afternoon sun
  • Soil: Moist, well-draining soil that doesn’t get waterlogged
  • Temperature: Cool conditions (likely hardy in USDA zones 4-8)
  • Moisture: Consistent moisture without being soggy

Planting and Care Tips

Spring is your best bet for planting Macdougal’s bluebells. Choose a spot that gets morning sun but afternoon shade, and make sure the soil drains well while staying consistently moist. Think of it like caring for a mountain wildflower – it wants cool, comfortable conditions without extremes.

Once established, maintain regular watering during dry spells and consider mulching around the base to help retain soil moisture and keep roots cool.

Benefits for Pollinators and Wildlife

Those beautiful blue bell-shaped flowers aren’t just pretty to look at – they’re also magnets for native bees and butterflies. By growing Macdougal’s bluebells, you’re providing important nectar resources for pollinators while supporting the conservation of a vulnerable native species.

The Bottom Line

Macdougal’s bluebells is absolutely worth growing if you can source it responsibly. This rare Arizona native offers unique beauty, supports local pollinators, and connects your garden to the natural heritage of the Southwest. Just remember – with rarity comes responsibility. Only purchase from ethical sources, and consider yourself a steward of this vulnerable species. Your garden will be more beautiful for it, and you’ll be doing your part to help ensure future generations can enjoy these lovely bluebells too.

Macdougal’s Bluebells

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

Mertensia Roth - bluebells

Species

Mertensia macdougalii A. Heller - Macdougal's bluebells

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