We've long loved our Dandy Collarette dahlia as a seed mix, and this year, we're delighted to share them with you as tubers! Meet the dapper dandies of the dahlia world. The "Collarette" name perfectly describes their unique form: a distinctive inner ring of shorter, frilled petals that creates a jaunty, ruffled collar. This tuber collection is a vibrant mix of some of the best colors that have appeared on our farm, including shades of red, burgundy, pink, and orange.
These plants maintain a reasonably compact, bushy habit, making them ideal for filling out borders and large containers with unapologetic good cheer. They are true garden performers, blooming in great abundance from mid-summer until the first frosts. Their open-faced flowers are a valuable resource for beneficial pollinators, and their long, stiff stems are outstanding for cutting.
THIS PRODUCT IS FOR TUBERS NOT SEED. SEED CAN BE FOUND HERE!
Dahlia Dozen Deal! Buy 12+ Dahlia Packs, Get 10% Off your Dahlia Order.
Mix and match varieties. Product discount applied at checkout.
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Growing instructions
Plant dahlia tubers in late spring when soil temperatures have reached 60 degrees. Frost will kill the plants, so plan to plant around your last frost date. In the Northeast, the window for planting is from around mid-May to mid-June.
Dahlias thrive in sunny locations with well drained, fertile, slightly acidic soil. Dig a hole that will accommodate the entire tuber clump, about 6" deep and 6" wide. Plant tuber clump with the "crown" up, just at the surface so all the tubers are beneath. If planting multiple tubers, space at least 12-18" apart. Do not begin watering until the plants emerge. After that, make sure they are watered well 1-2 times per week.
In Northern zones with shorter seasons, you can get a jump start by starting dahlias indoors in large pots 4-6 weeks before your last spring frost. Transplant after threat of frost has passed to spacing indicated above. Transplants will need to be watered in.
Dahlias reach up to 42" high and might need staking to keep the blooms upright.
Dahlias will not overwinter in zones below 8. After the first killing frost, gently dig up tubers and store in peat moss in a cool, frost-free place (40-50 degrees is ideal) until the next planting season.
Product Details
Days to Maturity
70 days
Width at Maturity
30"
Height at Maturity
36-48"
Hardiness Zone Range
8 9 10 11
Sun Conditions
Full Sun (8+ Hours Sun)
Planting Depth
6"
Row Spacing
18-24"
Plant Spacing
18"
Special shipping
Orders of dahlia tubers begin shipping in mid-March through May 15th, in the order in which they are received. If you purchase seeds or other products with your dahlia tubers prior to early May, you will receive two shipments - a prompt shipment of available items, including your seeds, and a later shipment of tubers-. The shipping fees shown at checkout will cover both deliveries. Dahlia tubers do not ship internationally.
A note on dahlia tuber sizes: Dahlia tubers vary dramatically in size between different cultivars. See the photo of cut tubers on this page to understand the range of tuber sizes that you could receive if you order this product.
