Tuscan Blue

Rosemary

Zone 13a Save Garden

Upright

Tuscan Blue rosemary unfurls with an unmistakably cool, piney fragrance and a silvery-blue cast that catches the light like fine …

Crop Dates

Milestone	Date
Start Indoors	Nov 6th
Last Frost	Jan 1st
Transplant / Sow Outdoors	Feb 12th
Harvest Begins	Feb 12th
Harvest Ends	—

Crop Details

Trait	Value
Days to Maturity	N/A
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	60
Min Night Temp (°F)	50
Harden Off (days)	10

Recommended Companions

White Sweet Spanish Onion

Super Star Onion

Borettana Onion

Red River F1 Onion

Yellow Sweet Spanish Onion

Patterson F1 Onion

Frequently Asked Questions

What pest or disease most commonly affects Salvia rosmarinus (Tuscan Blue), and how can I treat it?

Watch for fungal leaf spot and root rot, especially when plants stay wet or in poorly drained soil. Remove infected leaves, improve airflow around the plants, and water only at the base; if disease is spreading, apply a copper-based fungicide labeled for herbs following the label rate. Prevent recurrence by letting the soil dry slightly between waterings and avoiding overhead watering.

How often should I water Tuscan Blue (Salvia rosmarinus) during active growth, and what soil moisture level should I maintain?

During the main growing season, water deeply about once every 7–10 days, then allow the top 1–2 inches of soil to dry before watering again. Salvia rosmarinus prefers evenly moist early on, but it quickly declines in constantly wet soil—aim for “moist but not soggy.” Use well-draining soil and adjust frequency downward during cool or rainy periods.

How do I tell when Tuscan Blue is ready to harvest?

Harvest when the plant has formed sturdy, non-floppy stems and abundant leaf growth, typically after it establishes and starts producing new shoots. For best flavor, pick in the morning and harvest before flowering begins; snip stems just above a leaf node to encourage fresh regrowth. You can do light harvesting repeatedly through the growing season, but avoid cutting back hard right before cold weather.

Tuscan Blue rosemary unfurls with an unmistakably cool, piney fragrance and a silvery-blue cast that catches the light like fine felt. Its narrow, needlelike leaves hold a crisp, resinous bite and stay aromatic as plants mature, making it a standout for fresh sprigs and drying alike. Grow this compact, upright rosemary for bold flavor in herb-forward blends and for fragrant bouquets that keep their character season after season.

Sowing Tips

Transplant Conditions

Wait until soil reaches 60°F and nights stay above 50°F before moving outdoors. Harden off for 10 days first.

Expert Note

Grow rosemary in a warm, sunny spot with excellent drainage; avoid overwatering and transplant only after nights stay reliably warm.