such as 'Lilliput,' 'Thumbelina,' or 'Zahara,' which grow no more than 18 inches tall. How To Give Your Zinnias A Long Bloom Season One key to having a long season of zinnia bloom is to sow seeds ...

These annual flowers need to be replanted every spring, and knowing when to plant zinnia seeds—either indoors or out in the garden—is your key to success. This step-by-step guide on how and ...