Dahlias: Single Tubers vs Tuber Clumps

Which is Better?


Garden dahlias can be purchased as single tubers or as large tuber clumps; which is better?  After many seasons of testing, we can confirm that both will grow just fine. 

Small farm growers tend to sell individual tubers. A clump can be cut to produce multiple single tubers and this translates into more dahlias for the grower to sell. Each tuber must have an eye, as this is what sprouts and grows into a new plant. If a clump has 3 to 5 eyes, a knowledgeable trimmer can get that number of individual tubers from the clump. However, this takes time, skill and patience.

Dahlia farmers with greater acreage under cultivation have the space to produce more dahlia plants, each of which can be harvested for a saleable clump. These larger commercial growers usual prefer to sell full clumps rather than investing the time and money in trimming to individual tubers. 
Basket of washed dahlia tubers

When available, we offer full clumps because with more eyes, there can be multiple stalks. Fuller plants. A safety net if one stalk gets damaged. Occasionally, a desirable variety is only available as a single tuber. When this happens, we'll make a note of this on the product page so shoppers can decide how to proceed. 

This avid home gardener's basket of washed dahlia roots is ready for trimming and winter storage.




Single trimmed dahlia tubersThese ready-to-plant tubers were supplied by a small grower. Writing the name of the variety on the tuber is common practice.

Note: the difference in tuber size and shape based on variety. This is normal and to be expected.