Blue Spice Basil
Planting Schedule
Aromatic as crushed blue-green leaves under warm sun—Blue Spice Basil delivers a cool, spicy fragrance with a distinctly sweet, herbal lift. The foliage forms lush, compact mounds of tender leaves with a velvety, lightly serrated texture, ideal for gathering at peak flavor around 60 days. Grow it for fresh leaf use, fragrant garnishes, and standout pesto and herb sauces, where its signature “blue spice” character shines.
Crop Dates
| Milestone | Date |
|---|---|
| Start Indoors | Apr 15th |
| Last Frost | May 13th |
| Transplant / Sow Outdoors | Jul 8th |
| Harvest Begins | Sep 6th |
| Harvest Ends | Sep 27th |
Crop Details
| Trait | Value |
|---|---|
| Days to Maturity | 60 |
| 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 |
Today's Conditions
Outdoor planting for Blue Spice Basil in Zone 4b typically begins around 2026-07-08. Wait until soil reaches at least 60°F before transplanting Blue Spice Basil.
Garden Alerts
In Zone 4b, the average last spring frost is around May 13. Watch soil temperature before transplanting Blue Spice Basil.
Frequently Asked Questions
What should I do if my Blue Spice Basil shows downy mildew (yellow patches under leaves and gray growth)?
How often should I water Blue Spice Basil during peak growth to prevent wilting and stress?
How can I tell when Blue Spice Basil is ready to harvest at about 60 days?
Aromatic as crushed blue-green leaves under warm sun—Blue Spice Basil delivers a cool, spicy fragrance with a distinctly sweet, herbal lift. The foliage forms lush, compact mounds of tender leaves with a velvety, lightly serrated texture, ideal for gathering at peak flavor around 60 days. Grow it for fresh leaf use, fragrant garnishes, and standout pesto and herb sauces, where its signature “blue spice” character shines.
Today's Conditions
Outdoor planting for Blue Spice Basil in Zone 4b typically begins around 2026-07-08. Wait until soil reaches at least 60°F before transplanting Blue Spice Basil.
Garden Alerts
In Zone 4b, the average last spring frost is around May 13. Watch soil temperature before transplanting Blue Spice Basil.
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
Start basil indoors early for the longest harvest window, but only transplant after nights stay consistently warm (basil is very cold-sensitive).