As for essential oils that have long shelf lives usually, they are the thicker ones, such as Cedarwood, Sandalwood, Patchouli, Vetiver and a few others. Exception to this thick oil quality will be the essential oil of Rose Otto.
The season for them is generally a short one. Begins in early July and last for 2 to 3 weeks. Black raspberries tend to ripen before most red raspberries varieties expect for the early ripening summer ones.
noun, plural raspberries. 1. the fruit of any of several shrubs belonging to the genus Rubus, of the rose family, consisting of small and juicy red, black, or pale yellow drupelets forming a detachable cap about a convex receptacle. 2. any shrub bearing this fruit. 3. a dark reddish-purple color.