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!