Blackberries are a similar fruit to raspberries and are an aggregate of fruit composed of numerous small drupelets. Blackberry shrubs or 'brambles' are able to tolerate poor growth conditions and therefore can often be seen growing in woods, scrub and on hillsides. Generally black berries are dark purple in colour, however when unripe these berries are red. Similar to raspberries, blackberries are packed with numerous vitamins and minerals as well as fibre which is important in maintaining a healthy digestive system. They are also very low in calories. Blackberries are popular in desserts and jams and other sorts of sweet treats. Often they are mixed with apples to make apple pies or crumbles.