Balloon flower is one of those fun plants to grow in the garden with kids. Balloon flowers get their name from the unopened buds, which swell up prior to opening and resemble little hot-air balloons. Not only are they easy to grow, but these plants are easy to care for as well. If desired, they can be fertilized with a slow-release fertilizer in spring. Of course, they may require staking if falling over. Balloon flower plants don’t really like being disturbed; and although division can be done, it’s often difficult.