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.
Raspberries are really popular summer fruits and are very easy to grow. Just a few raspberry plants will reward you with plenty of fruit from midsummer until mid autumn. If you end up with a glut, raspberries also freeze well. Raspberries can be grown in any size garden, you can even grow raspberries in containers.ou can grow raspberries in containers. Pot up raspberry canes in autumn, three to a 30cm (12in) pot, using 50:50 John Innes No 3 compost and multi-purpose potting compost. Make sure plants are well fed and watered during summer.