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Dark Opal
Ocimum basilicum 'Dark Opal'
Days to Maturity
60-90
Type
Heirloom
Difficulty
beginner
Season
summer
About Dark Opal
Dark Opal is a heirloom variety of Allium sativum developed by University of Connecticut and introduced in 1962. This variety typically matures in 60 to 90 days from transplant.
🏆 Heirloom Variety
This is an open-pollinated heirloom variety, meaning you can save seeds and they will grow true to type. Heirlooms often have superior flavor and have been passed down through generations.
Growing Zones
Dark Opal can be grown successfully across a wide range of USDA hardiness zones. Select your zone below for specific planting guidance:
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