Dahlia University

Each of the courses listed below covers a single topic pertinent to growing beautiful dahlias.

These courses have been written by dahlia enthusiasts, not necessarily scientists or horticulturalists. These enthusiasts are pleased to share their experience and best practices with you. Please keep in mind that there are a variety of opinions in the dahlia community and that different solutions and procedures work in different circumstances and locales. We urge you to participate in a local society where you will meet great growers with knowledge of growing dahlias in your area…and you’ll have fun!



Preparing for a Dahlia Gardenview
Early Season Dahlia Hintsview
Starting Tubersview
Planting and Stakingview
Supporting Dahliasview
Fertilizing, Bug and Disease Controlview
Grooming (includes topping, disbudding, and disbranching)view
Growing Dahlias in Containersview
Putting Your Dahlias Down for a Long Winter’s Nap (a Pictorial)view



Understanding Dahlia Forms and Sizesview
Understanding ADS Classification Numbersview
Assigning Colors view



Digging, Dividing, and Storing Tubersview
The Saran Wrap Tuber Storage Methodview



Get inspired with these videos from Kristine Albrecht, ADS member and ADS Genome Project Leader

Grow Dahlias in Potsview
Dahlia Cuttings view
Starting Dahlias from Seedsview
More on Starting Dahlias from Seedview
Growing Seedlings in 4" Potsview
A Fun Look at Staking Dahliasview
An Innovating Way to Stake Dahliasview


More Videos

Learn About Hybridization of Dahliasview
Dahlia Cuttings featuring Mark Oldenkampview
Disbudding Dahliasview
Tying Dahliasview