North America Native Plant

Giant-trumpets

Botanical name: Macromeria

USDA symbol: MACRO

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Giant-Trumpets: A Spectacular Native Wildflower for Southwestern Gardens If you’re looking to add some serious flower power to your desert garden, let me introduce you to one of the Southwest’s best-kept secrets: giant-trumpets (Macromeria). This stunning native perennial lives up to its common name with impressively large, trumpet-shaped blooms that’ll ...

Giant-Trumpets: A Spectacular Native Wildflower for Southwestern Gardens

If you’re looking to add some serious flower power to your desert garden, let me introduce you to one of the Southwest’s best-kept secrets: giant-trumpets (Macromeria). This stunning native perennial lives up to its common name with impressively large, trumpet-shaped blooms that’ll make your neighbors do a double-take.

What Makes Giant-Trumpets Special?

Giant-trumpets are herbaceous perennials, meaning they’re soft-stemmed plants that die back to the ground each winter and return with renewed vigor each spring. As a forb, this plant focuses its energy on producing those show-stopping flowers rather than developing woody stems.

What really sets giant-trumpets apart is their impressive stature and eye-catching blooms. These plants can reach 3 to 6 feet tall, creating dramatic vertical interest in the garden. The large, funnel-shaped flowers are typically blue to purple and appear in clusters, creating a spectacular display that’s hard to miss.

Where Giant-Trumpets Call Home

This beautiful wildflower is native to the southwestern United States, specifically thriving in Arizona and New Mexico. When you plant giant-trumpets, you’re not just adding beauty to your garden – you’re supporting the local ecosystem with a plant that has evolved alongside native wildlife for thousands of years.

Why Your Garden (and Local Wildlife) Will Love Giant-Trumpets

There are plenty of reasons to consider adding giant-trumpets to your landscape:

  • Pollinator magnet: Those trumpet-shaped flowers are perfect landing pads for bees and butterflies, while their tubular shape makes them hummingbird favorites
  • Low maintenance: Once established, these drought-tolerant natives require minimal care
  • Dramatic impact: Their impressive height and showy flowers create focal points in desert and native plant gardens
  • Eco-friendly choice: Supporting native plants helps preserve regional biodiversity

Perfect Garden Settings

Giant-trumpets shine brightest in:

  • Native plant gardens
  • Xeriscape designs
  • Desert-themed landscapes
  • Wildlife gardens focused on attracting pollinators
  • Mixed perennial borders in southwestern regions

Growing Giant-Trumpets Successfully

The good news? Giant-trumpets are relatively easy to grow if you can provide the right conditions. These plants are hardy in USDA zones 7-10, making them perfect for much of the Southwest and some warmer areas beyond their native range.

Ideal Growing Conditions

  • Sunlight: Full sun to partial shade (at least 6 hours of direct sunlight daily)
  • Soil: Well-draining soil is absolutely crucial – these plants cannot tolerate wet feet
  • Water: Drought tolerant once established; water deeply but infrequently
  • Space: Allow 2-3 feet between plants as they form clumps over time

Planting and Care Tips

Here’s how to give your giant-trumpets the best start:

  • Timing: Plant in fall or early spring when temperatures are moderate
  • Soil preparation: Improve drainage by adding coarse sand or gravel to heavy soils
  • Watering: Water regularly the first year to help establish roots, then reduce to occasional deep watering
  • Fertilizing: These natives typically don’t need fertilizer – rich soil can actually reduce flowering
  • Pruning: Cut back spent flower stems to encourage more blooms, and trim to ground level in late fall

A Few Things to Consider

While giant-trumpets are wonderful plants, they’re not right for every situation:

  • They need excellent drainage and may struggle in clay soils or wet climates
  • Their tall growth habit means they need space and may require staking in windy areas
  • They’re best suited for regions with hot, dry summers similar to their native habitat

The Bottom Line

Giant-trumpets offer southwestern gardeners a fantastic opportunity to grow a spectacular native plant that supports local wildlife while adding dramatic beauty to the landscape. If you have the right growing conditions – well-draining soil, plenty of sun, and a relatively dry climate – these impressive perennials can become a stunning centerpiece in your native garden.

Remember, choosing native plants like giant-trumpets isn’t just good for your garden – it’s an investment in your local ecosystem. So why not give these magnificent wildflowers a try? Your garden (and the local hummingbirds) will thank you!

Giant-trumpets

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

Macromeria D. Don - giant-trumpets

Species

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