While it may be tempting, don't toss leftover sunflower seeds and shells when you can use them as mulch or suet cakes as some of the 11 clever ways to repurpose them.

10. Harvesting seeds: Once the sunflower blooms fade and the back of the flower head turns brown, it's time to harvest the seeds. Cut the flower head, leaving a portion of the stem attached.

Some sources say this dill can grow three to six feet tall. This is an heirloom variety, so the seeds can be saved to start new plants for the next year. "Bouquet" grows 30 to 36 inches tall.