That's right — there's a right way and a wrong way to water freshly potted dahlia tubers, and there's a good chance that a ...
When you want show-stopping plants with big flowers, nothing beats dinner plate dahlias. These tall, colorful, long-blooming plants feature flower heads that can grow to more than 12 inches wide.
All you need to do is trick the dahlia tuber into making new shoots in late winter. These can be snipped off and are so vigorous that they'll root in compost within seven to eight days.