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.
â In California the leading production regions for raspberry are Santa Cruz and Monterey Counties. and the harvest season is June 1 - October 31 (3). â The leading production area for boysenberries is the northern San Joaquin Valley.