In this Home & Garden video tutorial you will learn how to identify problems with the cotton wood and aster tree. Curtis Smith, extension horticulturist, presents this video along with Judy Nickell, master gardener. Female Junipers make berries and male Junipers make pollens. Lot of people are allergic to the pollens. So, you will be better advised to avoid male junipers in your landscapes. On the other hand berries of female junipers attract birds and are good for increasing bird activity. For increasing flowering on asters, cut the stocks so they grow more branches which will produce more flowers. This will also help the tree remain more compact and less affected by wind.