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About Azure Blue Sage

Azure Blue Sage, scientifically known as Salvia azurea, is a stunning perennial plant with striking blue flowers and aromatic foliage. Native to central and eastern North America (including Oklahoma), this resilient plant is a favorite among gardeners for its beauty, adaptability, and low maintenance requirements. In this comprehensive guide, we’ll delve into everything you need to know about growing and caring for Azure Blue Sage in your garden.

Overview Of Azure Blue Sage

Azure Blue Sage is a herbaceous perennial with slender stems and lance-shaped leaves. Its tall spikes of azure-blue flowers bloom in late summer to fall, attracting bees, butterflies, and hummingbirds.
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Native Habitat
Azure Blue Sage is native to the central and eastern regions of the United States, where it thrives in prairies, meadows, and open woodlands.
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Varieties such as 'Nekan' and 'Grandiflora' offer variations in flower size and color intensity.
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Growing Conditions:


  • Timing: Plant Azure Blue Sage in spring after the last frost date or in early fall.
  • Spacing: Space plants 18-24 inches apart to allow for adequate air circulation.
  • Planting Depth: Set the root ball at the same depth as it was in the container.

Care and Maintenance:

  • Pruning: Deadhead spent flowers to encourage continuous blooming and prevent self-seeding. Cut back stems to the basal foliage in late fall or early spring to promote new growth.
  • Fertilization: Azure Blue Sage generally doesn’t require heavy fertilization. A balanced, slow-release fertilizer in spring can promote healthy growth.
  • Mulching: Apply a layer of organic mulch around the base of the plant to retain moisture and suppress weed growth.
  • Division: Every few years, divide overcrowded clumps in early spring to rejuvenate the plant and maintain vigor.

Pests and Diseases:

  • Pests: Azure Blue Sage is relatively pest-resistant, but it may occasionally attract aphids or spider mites. These can be controlled with insecticidal soap or horticultural oil.
  • Diseases: While generally disease-resistant, poor drainage can lead to root rot. Ensure proper soil drainage to prevent fungal diseases.

Frequently Asked Questions

Yes, Azure Blue Sage is a perennial plant, meaning it returns year after year if provided with suitable growing conditions.
Cut back Azure Blue Sage in late fall or early spring is advisable to promote new growth and maintain its shape. Removing spent flower spikes encourages continuous blooming and prevents the plant from becoming leggy.
Yes, cutting back salvias in winter helps to rejuvenate the plant and prepare it for new growth in the spring.
Azure Blue Sage typically blooms from late summer to fall.
With proper care, Azure Blue Sage can last for many years, providing beauty to your garden season after season.
Azure Blue Sage prefers full sun but can tolerate partial shade.
Yes, Azure Blue Sage’s vibrant flowers are attractive to hummingbirds, bees, and butterflies.
Azure Blue Sage is cold-hardy and can tolerate temperatures down to USDA zone 5 (-20°F/-29°C).
Some species of sage, including Salvia officinalis, have medicinal properties, but Azure Blue Sage is primarily grown for ornamental purposes.

Azure Blue Sage has a pleasant, aromatic fragrance emitted from its foliage when crushed or brushed against.

While Azure Blue Sage is not typically cultivated for culinary use, some species of sage are used in cooking and herbal medicine.
Burning sage, including Azure Blue Sage, is a practice known as smudging, which is believed to cleanse negative energy and purify a space in some cultural and spiritual traditions.


Azure Blue Sage is a beautiful and low-maintenance perennial that adds color and charm to gardens, borders, and naturalistic landscapes. By following the guidelines outlined in this comprehensive guide, you can cultivate healthy, thriving plants that delight both you and visiting pollinators for years to come. Whether you’re a seasoned gardener or a novice enthusiast, Azure Blue Sage is sure to become a treasured addition to your outdoor space.


Visit Midwest Propagation Nursery to purchase this stunning perennial and enjoy its vibrant blooms and aromatic foliage. Transform your outdoor space into a haven for pollinators and a sanctuary of natural beauty with Azure Blue Sage from Midwest Propagation Nursery.


Learn more about Oklahoma native plants at ONPN and ONPS!

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