29.Balloon Flower
The Balloon Flower is one of the most common flowers among children. The attractive green foliage of this hardy perennial, which can grow very far north, can sustain truly balloon-shaped buds that can be squeezed and "popped" open! Despite frequent scoldings, many of you probably did this to your mother's Balloon Flowers regularly as a child.
This is a must-have in any eccentric or whimsical garden because of the unusual design of the buds and the stunning blue flowers. It could also bring back some childhood memories for those with green thumbs in the family.
