Blue Spice
45d to harvest
Aromatic as fresh blue-sky sun—Blue Spice basil fills the garden with a cool, peppery fragrance and a distinctly sweet, herbal bite. Leaves are tender and richly textured, forming lush, upright mounds that hold their flavor beautifully for classic Italian-style uses, from pesto to bright finishing sauces and fragrant oil infusions. Grow it for that signature “blue” spice note that turns everyday meals into something garden-fresh and unforgettable.
Crop Dates
Growing note: In frost-free Zone 10b, grow this cool-season crop during the cooler dry season (October–February).
| Milestone | Date |
|---|---|
| Start Indoors | — |
| Climate | Frost-Free Climate |
| Transplant / Sow Outdoors | Oct 1st |
| Harvest Begins | Nov 15th |
| Harvest Ends | Feb 28th |
Crop Details
| Trait | Value |
|---|---|
| Days to Maturity | 45 |
| 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
Frequently Asked Questions
How do I manage aphids or powdery mildew on Blue Spice plants?
In Blue Spice, check undersides of leaves weekly for aphids and act immediately with a strong jet of water, then repeat every 2–3 days for 1–2 weeks if needed. If you see powdery mildew (white, dusty patches), remove the most affected leaves, keep plants spaced for airflow, and water at the base so foliage stays dry; re-check after 5–7 days and repeat removal until it stops spreading.
How often should I water Blue Spice during the main growing phase?
During the main growth period (from just after transplanting until about 2 weeks before harvest), water enough to keep the top 1 inch of soil consistently moist but not soggy—typically about 1 inch of water per week, adjusted for heat and wind. If leaves wilt by midday, water deeply in the morning and let the surface dry slightly between waterings to prevent rot.