Belonging to the Ocimum genus (Ocimum basilicum 'Dark Opal'), Dark Opal is a variety of Basil. Dark Opal is generally thought of as a open-polliated variety. Blooms appear in these approximate colours: Lavender purple and Purple Heart. Leaves appear approximately as a Tyrian purple and Dark olive green colour. A type of Herb, it mainly grows as an Annual plant - which means it typically only grows best for a single growing season. Dark Opal is known for growing with a forb-like habit to a height of approximately 45.0 cm (that's 1.46 feet in imperial).
India is believed to be where Dark Opal originates from.
Being a fairly low maintenance plant, Dark Opal Basil is normally quite easy to grow provided a minimum level of care is given throughout the year. It will be helpful to note the correct soil, sun and water needs of this plant to ensure that this plant thrives.
This plant info is provided by the myfolia gardener's wiki. All details about Basil 'Dark Opal' have been kindly provided by our members.
How to grow Basil 'Dark Opal'
Pinch terminal shoots to encourage branching.
Harvest leaves before flowering occurs, or they will be bitter.
Growing Dark Opal from seed
Cover with finely sieved compost.Sow 0.12 inches (0.3 cm) deep with a guideline distance of 0.5 inches (1.27 cm). Soil temperature should be kept higher than 10°C / 50°F to ensure good germination.
By our calculations, you should look at sowing Dark Opal about 20 days before your last frost date.
Transplanting Dark Opal
Plant out when frost risk has passed.As Dark Opal is half hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.
By our calculations, you should look at planting out Dark Opal about 21 days after your last frost date.
Harvesting Dark Opal
Basil 'Dark Opal' information
How long does Dark Opal take to grow?
These estimates for how long Basil 'Dark Opal' takes to sprout, grow and harvest are from real observations from real gardeners, right around the world. Start logging and journaling your observations to participate!
When should I sow Dark Opal?
Folia's when to plant Basil 'Dark Opal' estimates are relative to your last frost date. Enter your frost dates and we'll calculate your sowing and planting dates for you!
The word basil means “king” in Greek – it is believed to have grown above the spot where St. Constantine and Helen discovered the Holy Cross.
Jewish folklore says that basil adds strength while fasting.
Dark Opal Purple
Popular varieties of Basil
- Italian Large Leaf
- Red Rubin
- Dark Opal
- Purple Ruffles
- Purple Dark Opal
View the complete variety list for Basil »
Dark Opal Basil Tags
A group dedicated to all subspecies of the basil plant. With such an ease of growth, wide tolerance of growing tolera...7 members / 4 topics