Basil Purple

Ocimum basilicum var. purpureum

Characteristics

Culture

Basil Purple is easy to grow.  Dark purple leaves with beautiful lilac/pink flowers on dark red stems. Provides excellent contrast when planted with green basil. Spectacular as a garnish, in salads, or for adding color to basil vinegars. Purple basil is a colorful addition to any flower or herb garden, particularly as a filler or edger.

When Basil Purple begins so wilt, it’s a sure sign that the plant needs water. Heed this visual clue to avoid over-watering thereby maintaining the herb’s intense flavor integrity. Stressing the plant slightly can enhance the production of essential oils, so excessive watering can dilute its taste.

To prevent your Purple Basil from growing excessively leggy, trim back the stems just above new side shoots. Avoid refrigeration of cut leaves or stems as the cold can cause the leaves to darken rapidly.

In a container, keep your colorful potted Purple Basil on your kitchen counter, away from drafts, and preferably shielded from direct sunlight to ensure optimal growth conditions.

Noteworthy Characteristics

Ocimum basilicum, commonly called basil, is a native of Africa and Asia.  Like other purple basils, the purple color is from anthocyanins, especially cyanidin-3-(di-p-coumarylglucoside)-5-glucoside but also other cyanidin based and peonidin based compounds. ‘Dark opal’, along with other large leaved purple cultivars such as ‘Purple Ruffles’, has a high concentration of anthocyanins and is considered a potential source of red pigments for the food industry.  

With a strong, almost spicy aroma, purple basil can contribute to your garden with aroma as well as its bold foliage. An additional benefit is that it is useful seasoning in Italian, Greek, Mexican, and tomato dishes. Purple basil can be used in any recipe that calls for sweet basil, although the flavor is more intense than traditional sweet basil. Amazing purple foliage looks attractive in cut flower arrangements.  Consider letting at least one plant flower.  Bees and hummingbirds will enjoy the nectar of this plant.

Problems

No serious insect or disease problems. Basil loves hot weather and plenty of sunshine, but it needs consistently moist, rich soil. Mulch the plants to retain moisture, and water heavily during dry spells.

Garden Uses

Ornamental plant that provides striking contrast in the garden. Cottage gardens or containers. Harvest the plant before the cold weather sets in, as this will affect the leaves’ texture and flavor. Freeze entire stems, with the leaves still attached, for best flavor retention, or dry the leaves for seasoning.