Basil – Dark Opal


A popular sweet basil with regal, purple-black glossy foliage that gets darker as the plant matures and pale pink flowers. A colourful garden plant that is also perfect in any dish, from tomato sauce to pesto, vinegars and oils, and even tea, there are a variety of uses for this sweet tasting, highly aromatic herb. A perfect combination of ornamental appeal and intense, spicy flavour.

Price is for seed packets. Plants are available at store. 

Come visit us in our Garden Centre for seeds, plants and materials. Please note that we do not ship plants. Click here for local delivery (Montreal and surrounding area) or shipping options.

5 in stock

SKU: 48eeced82811 Categories: ,


Botanical name
Ocimum basilicum ‘Purpurascens’


1 per square foot

6 mm (¼”) deep

Bright light indoors. Good ventilation for seedlings. Herbs do best in a hot, sunny spot. In these conditions they’ll make the highest level of the aromatic oils that give them their taste and aroma. They also prefer well-drained alkaline soil, pH 6-8.

Seeds will sprout in 5-10 days

Aphids and slugs. Aphids can be washed off with a strong jet of water. Slugs can be removed by hand. Basil is generally quite resistant when outdoors.

You can grow basil indoors all year. Start indoors in April / May for transplant to garden in June when the soil is warm.

Pinch tips for bushier growth when plant reaches about 15 cm (6″).

75 days

Warm, annual

An easy recipe that only takes a few minutes to prepare:
Basil Pesto