How to Grow

Dahlias are grown from tubers (similar to a bulb, but thin-skinned like a potato). Plant tubers in the springtime, about the same time as you would your vegetable gardens or when the ground is warm enough to work up and play in daily. Plant them in a full sun location (giving them 6-8 hours of direct sunlight) and enjoy blooms all summer long. They will bloom and provide you with color and abundant flowers for cutting and enjoying throughout the summer.
The more you cut a dahlia plant, the more it will bloom. Most cut dahlias will last up to 5 days once cut and treated.

  • 5 stars: 1 (33%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 2 (67%)
  • 1 star: 0 (0%)
M
MARILYN
Too small.

I wanted a lavender flower to go with my collarette dahlias so gave this one a try. Disappointing. The flowers are not 4”, they are barely 2”. I have 4-5” collarettes so I don’t think fertilizer is the problem. Very tall and slender bush and it took forever to show the first bloom. At least it always a relatively cheap experiment.

T
Teiya
Stunted growth, still has not flowered 9/14

The tuber looked great upon arrival. First order with Swan Island and 3 out of 7 tubers ordered have not performed well (one died, one is so stunted that the growth is only 4", D Sorensenii tuber is stunted with weak looking leaves and as of 9/14 still has not flowered). I also ordered dahlia tubers for the first time with a different company and all of them are currently flourishing with abundant flowers and strong plants. I mixed the plantings of all the tubers, so the Swan Island Dahlias are growing in the same plots as the flourishing other company dahlias. Swan Island is replacing one of the 3 tubers next season, so I shall see next year how Tapioca grows. As a note of FYI: the "warranty" is only up to a certain date to turn in photos of the tubers in question. I only turned in one by that date because I did see some growth on the other two that didn't perform well, but with more time, thinking they would catch up after sprouting, the date to turn in photos had passed. So if you have a colder zone or chilly season with slower growth, you may be out of luck with some of Swan Island's dahlia tubers' warranty. I spent over $80 on this order for the season. I spent a total of less than half that with the other company with 100% abundant success. I may be an anomaly in the statistics of buyers here, but wanted to at least post my experience.

E
ELAINE
Grew 8" tall!

This is a beautiful dahlia with lovely flowers, but it grew to about 8" tall, and the blossoms were so high, that I could barely reach to pick them! It also became so heavy that it started to fall over, even though it was well staked. I would definitely plant this in an area where it has lots of room to grow, since it dwarfed my other dahlias and flowers, and became a little out of control, as far as size. It's such a pretty dahlia, but was hard to enjoy because it was so tall.