Herbs
Salvia rosmarinus 'Tuscan Blue'
Tuscan Blue rosemary
An upright, evergreen rosemary with aromatic, relatively broad leaves and deep blue flowers. Snip leaves and leafy stems as needed during active growth. Harvest after dew dries; dry or freeze suitable cuttings for later use.
At a glance
- Sun
- Full sun
- Mature size
- Height: 2–3 ft. in RHS guidance; larger in warm climates · Spread: 20–40 in.; larger in warm climates
- Water
- Well-drained soil
- Bloom
- Deep blue, spring–summer; timing depends on climate.
Sizes & prices
- 4.5''Call for price
- 6''$14.99
Catalog updated September 8, 2026. This is not a live stock count; please call to confirm availability and price.
Ask about this plantSelect a section to expand.
Resistance & tolerances
- Drought
- Tolerant once established.
- Wet soil
- Avoid wet roots.
- Winter
- Protect from severe cold; container overwintering is safer locally.
Keep in mind: May irritate sensitive skin. Use gloves if needed.
Culinary uses
- Use
- A culinary rosemary; aromatic stems can flavor grilling.
- Harvest
- Snip young shoots; use leaves fresh or dried.
Seasonal interest
- Foliage
- Evergreen.
Growing & care
- Pruning
- Lightly trim after flowering; avoid bare old wood.
Trim leafy growth; avoid cutting into bare wood.
Sources & photo credits
University of California Agriculture and Natural Resources
University of Minnesota Extension
Photo: Krzysztof Ziarnek, Kenraiz · CC BY-SA 4.0
Image notes: Tuscan Blue rosemary at Clovis Botanical Garden. Original framing retained; display versions resized and compressed.
Reviewed September 21, 2026. Growing conditions vary by location.