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Writer's pictureMegan Banich

Best Flowers for Colorado Gardens: A Comprehensive Guide

Updated: Oct 29

Gardening in Colorado presents a unique blend of opportunities and challenges, thanks to its diverse elevations and climate conditions. From the sun-soaked plains to the rugged mountain slopes, each region offers distinct growing environments that can support a wide array of beautiful flowers.

🌼 A harmonious blend of Colorado's finest: the iconic Rocky Mountain Columbine, vibrant Petunias, charming Dianthus, and aromatic Sage. Together, they create a stunning tapestry of color and fragrance that celebrates the beauty of our natural landscape. 🌿✨ #ColoradoBlooms #GardenGoals" Feel free to adjust any emojis or wording to better fit your style!
A harmonious blend of Colorado's finest: the iconic Rocky Mountain Columbine, vibrant Petunias, charming Dianthus, and aromatic Sage.

Whether you're a seasoned gardener or just starting out, selecting the right plants for your specific elevation is crucial for creating a thriving garden. In this guide, we’ll explore the best flowers suited for low, mid, and high elevation gardens in Colorado, complete with essential information on their size, sunlight and water requirements, and soil preferences.


Let’s dive into the vibrant world of Colorado gardening!




Best Flowers for Colorado Gardens - Low Elevation Gardens (3,000-6,000 ft)

  • Purple Coneflower (Echinacea purpurea)

    • Size: 2-4 feet tall and wide

    • Sun: Full sun to part shade

    • Water: Moderate, drought-tolerant once established

    • Soil: Well-drained, adaptable

    • Maximum elevation: 7,000 ft

  • Russian Sage (Perovskia atriplicifolia)

    • Size: 3-5 feet tall, 2-4 feet wide

    • Sun: Full sun

    • Water: Low, very drought-tolerant

    • Soil: Well-drained, tolerates poor soils

    • Maximum elevation: 7,500 ft

  • Blanket Flower (Gaillardia aristata)

    • Size: 18-24 inches tall and wide

    • Sun: Full sun

    • Water: Low to moderate

    • Soil: Well-drained, tolerates poor soils

    • Maximum elevation: 7,000 ft

  • Blue Flax (Linum perenne)

    • Size: 12-24 inches tall and wide

    • Sun: Full sun

    • Water: Low to moderate

    • Soil: Well-drained

    • Maximum elevation: 8,000 ft

  • Chocolate Flower (Berlandiera lyrata)

    • Size: 12-24 inches tall and wide

    • Sun: Full sun

    • Water: Low

    • Soil: Well-drained, sandy or rocky

    • Maximum elevation: 7,000 ft

  • Whirling Butterflies (Gaura lindheimeri)

    • Size: 2-3 feet tall, 1-2 feet wide

    • Sun: Full sun

    • Water: Low to moderate

    • Soil: Well-drained

    • Maximum elevation: 7,000 ft


Best Flowers for Colorado Gardens - Mid-Elevation Gardens (6,000-8,000 ft)

  • Rocky Mountain Columbine (Aquilegia caerulea)

    • Size: 1-2 feet tall and wide

    • Sun: Part shade to full sun

    • Water: Moderate

    • Soil: Well-drained, rich in organic matter

    • Maximum elevation: 10,000 ft

  • Shasta Daisy (Leucanthemum x superbum)

    • Size: 2-3 feet tall, 1-2 feet wide

    • Sun: Full sun

    • Water: Moderate

    • Soil: Well-drained, fertile

    • Maximum elevation: 8,500 ft

  • Pasqueflower (Pulsatilla patens)

    • Size: 6-12 inches tall and wide

    • Sun: Full sun to part shade

    • Water: Low to moderate

    • Soil: Well-drained

    • Maximum elevation: 10,000 ft

  • Rocky Mountain Penstemon (Penstemon strictus)

    • Size: 1-3 feet tall, 1-2 feet wide

    • Sun: Full sun

    • Water: Low to moderate

    • Soil: Well-drained, adaptable

    • Maximum elevation: 10,500 ft

  • Broadbeard Penstemon (Penstemon angustifolius)

    • Size: 1-2 feet tall and wide

    • Sun: Full sun

    • Water: Low

    • Soil: Well-drained, sandy or rocky

    • Maximum elevation: 8,500 ft

  • Wild Rose (Rosa woodsii)

    • Size: 3-6 feet tall and wide

    • Sun: Full sun to part shade

    • Water: Low to moderate

    • Soil: Adaptable, prefers well-drained

    • Maximum elevation: 10,000 ft


Best Flowers for Colorado Gardens - High Elevation Gardens (8,000+ ft)

  • Fireweed (Chamerion angustifolium)

    • Size: 3-6 feet tall, 1-2 feet wide

    • Sun: Full sun to part shade

    • Water: Moderate

    • Soil: Well-drained, adaptable

    • Maximum elevation: 11,000 ft

  • Alpine Phlox (Phlox condensata)

    • Size: 2-4 inches tall, 6-12 inches wide

    • Sun: Full sun

    • Water: Low to moderate

    • Soil: Well-drained, rocky

    • Maximum elevation: 14,000 ft

  • Sky Pilot (Polemonium viscosum)

    • Size: 4-8 inches tall and wide

    • Sun: Full sun

    • Water: Moderate

    • Soil: Well-drained, rocky

    • Maximum elevation: 14,000 ft

  • Alpine Avens (Geum rossii)

    • Size:4-8 inches tall and wide

    • Sun:Full sun

    • Water:Low to moderate

    • Soil:Well-drained, rocky

    • Maximum elevation:14,000 ft

  • Parry's Bellflower (Campanula parryi)

    • Size:4–12 inches tall and wide

    • Sun:Full sun to part shade

    • Water:Moderate

    • Soil:Well-drained, moist

    • Maximum elevation:13,000 ft

  • Alpine Forget-Me-Not (Eritrichium nanum)

    • Size:1–2 inches tall, 2–4 inches wide

    • Sun:Full sun

    • Water:Low to moderate

    • Soil:Well-drained, rocky

    • Maximum elevation:14,000 ft


These plants are well-suited for their respective elevations in Colorado and will provide a variety of colors and textures for your garden.


Where to Buy

For a wide selection of Colorado-friendly plants, visit High Country Gardens. They specialize in cold-hardy, drought-tolerant plants perfect for Colorado's climate.For local options, check out The Garden Bin in Longmont, which offers a variety of plants well-suited to Colorado gardens.Remember to consider your specific microclimate, soil conditions, and elevation when selecting plants for your garden. With the right choices, you can create a beautiful, thriving Colorado garden that will bloom year after year.


In conclusion, choosing the right flowers for your Colorado garden is essential for ensuring vibrant blooms and healthy plants.


By understanding the specific needs of each flower and considering your garden's elevation, you can create a stunning landscape that thrives in Colorado's unique climate. Whether you opt for the resilient Purple Coneflower at lower elevations or the striking Fireweed high in the mountains, each plant contributes to the beauty and biodiversity of your outdoor space.


Remember to visit local nurseries like. The Garden Bin in Longmont for quality selections tailored to Colorado's environment. Happy gardening, and may your efforts yield a flourishing garden that brings joy for years to come!


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