Blue sage (Salvia azurea): planting & care

Salvia azurea: Narrow-leaf plant producing spike of pale blue 2-lipped flowers.

Blue sage carries sky-blue flower spikes on tall, slender stems, adding late-season colour and attracting bees and butterflies.

Height: 91–153 cm / 3–5 ft
Spread: 60–122 cm / 2–4 ft
Light: Full sun / Partial shade
Soil moisture: Dry / Moist, well-drained
Flowering: Fall, Summer
Maintenance: Low
USDA zones: 5a–9b

Check what suits your garden

Planting

Choose sun or partial shade with sandy or shallow, rocky soil that drains well. Keep it out of excessively rich ground, where its tall stems are more likely to flop.

Care

Cut stems back by half in late spring for a fuller, shorter plant. Keep some hollow dead stems standing later as nesting habitat for bees.

Before planting: Flower spikes can weigh stems down, so allow for support if the plant becomes floppy.

A landscaping crew planting and finishing a garden

Planting Blue sage?

Find a landscaper nearby to help with planting and establishment.

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Autumn sage

Salvia greggii

Lyreleaf sage

Salvia lyrata

Woodland sage

Salvia nemorosa

Sources & photo credit

Plant reference: NC State Extension Gardener Plant Toolbox. Content checked 17 October 2026. Flowering seasons vary with local climate; USDA zones describe winter cold tolerance.

Blue sage: KENPEI · CC BY-SA 3.0. Resized, converted to WebP and cropped for display.
Autumn sage: Cathy Dewitt · CC BY 4.0. Resized, converted to WebP and cropped for display.
Lyreleaf sage: John Flannery · CC BY 2.0. Resized, converted to WebP and cropped for display.
Woodland sage: K. Andre · CC BY 2.0. Resized, converted to WebP and cropped for display.

Blue sage