Common Name   DARK OPAL BASIL     OCIMUM BASILICUM PURPURASCENS   Zone   Without object   Type   Annual   Dimension   Height : 45 cm. : - spread 30 cm.   Site   Sunny.   Soil   Rich, moist, well-drained soil.   Harvest   The leaves before flowering.   Conservation   In vinegar.   Culinary use   The fresh leaves are used to make a lightly purpled vinegar.           Landscaping   The plant produces pink flowers and can be used in edgings, with other golden and greyish colored plants like santolinas, green and golden sages, golden oreganos, golden lemon thymes, etc.   Can be planted mixed with rosebushes.   Interior plant   Without object   Uses   Soon!