Buy the 2015 Old Farmer's Almanac!
Reporting
Yes, you can certainly mixYes, you can certainly mix the berries. Here's an example of berry ratio: 8 ounces blueberries 4 ounces raspberries 8 ounces blackberries No, you don't have to use pectin. It is natural gelling agent found in ripe fruit. Some fruits has more pectin than others. Blackberries have high pectin levels. Strawberries have low levels so lemon juice is also used help the set. Many people find it difficult to make pure strawberry jam without adding pectin (which you can purchase in a liquid extract or in powdered form). Try it both ways and see what you prefer!

2015 Garden Calendar2015 Weather Watcher's Calendar2015 Recipes Calendar2015 Engagement Calendar 2015 Everyday Calendar2015 Country CalendarNew Year Cross StitchLobster Rope Doormats