Annuals are great for providing full color blooms all season long, a trait not usually available with shrubs and perennials. While annuals do have to be planted each year, this is usually cost effective because the planting labor and cost per plant is low. Most annuals need irrigation but we have discovered a few that establish quickly and tolerate complete summer drought. Flowering will often start immediately after planting and continue until October or November when our first frost arrives. Some annuals can even be dug up and stored in a cool garage over winter or allowed to self-seed.