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.
Then there are autumn-fruiting raspberries (with a longer fruiting season) , which fruit on the current seasonâs growth. You arenât supposed to prune out the fruited canes right away like with the summer-fruiting ones.