Bees aren't the only insects who help pollinate fruits, flowers and veggies. Butterflies are also an important part of the ecosystem. To help attract butterflies to your garden, avoid insecticides altogether, because they are lethal. Be aware that butterflies aren't attracted just to flowers, but to flowering plants and bushes that are rich in nectar. Look for flowers like milkweed, mint, zinnias, buddleia and heliotrope, which are nectar-rich. Also, filling a shallow dish with fresh water every day is a simple way to give them a place to drink, too.