Dark Opal
Basil · Genovese
Heirloom
Ocimum basilicum
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Lamiaceae (Mint family) · Genus: Ocimum
About
An annual herb with distinctive, deep purple foliage and a wonderful fragrance, it is lovely in the flower garden. You can also use it in flavored vinegar, as a garnish, or fresh in salads.
Characteristics
Color
Purple
About the Plant
Life Cycle
Annual
❄
Hardiness
Warm-Season/Very Tender
☀
Exposure
Full Sun
💧
Moisture
Evenly Moist but Well Drained
🌱
Germination
14–21 days
at 65–80 °F
⏳
Days to Maturity
80 days
How to Plant
🏠
Start Indoors
4-6 Weeks Before Last Frost
Transplant
2-4 Weeks After Last Frost
🌸
Direct Sow (Spring)
2-4 Weeks After Last Frost
🪴
Container Friendly
Yes
Planting Depth
0.25 in
Seed Spacing
10 in
Thin To
10 in
🌡
Optimal Soil Temp
70–80 °F
🌡
Soil Temp
65–80 °F
🌡
Air Temp
40 °F
When to Plant in Your Area
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Planting and Care Instructions
Start seeds indoors, 6 to 8 weeks before the last frost. In mild climates, sow outdoors. Thin when plants are a few inches tall. Transplant to garden after frost. Harden off before transplanting.
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