Each of the courses or references listed below covers a single topic pertinent to growing beautiful dahlias.
Our 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!
We have also included some links to non ADS sources. These are included for your convenience because we think they might be interesting to you. As stated above there are variety of opinions in the dahlia community. Please note that you are leaving the ADS site when you view these other sources. Check their privacy policies as appropriate.
Growing
| Preparing for a Dahlia Garden | view |
| Early Season Dahlia Hints | view |
| Cuttings | view |
| All things tubers | view |
| Planting and Staking | view |
| Supporting Dahlias | view |
| Watering | view |
| Fertilizing, Bug and Disease Control | view |
| Coping with Spider Mites | view |
| Broad Mites (Article in June 2020 Bulletin) | view |
| Excerpt on Mites | view |
| Grooming (includes topping, disbudding, and disbranching) | view |
| Growing Dahlias in Containers | view |
| Cutting Tubers | view |
| Putting Your Dahlias Down for a Long Winter’s Nap (a Pictorial) | view |
Info from External Sources
| 11 Dahlia Pests: How to Identify, Prevent, and Treat Them | view |
| Dahlia Nutrient Disorders | view |
Classification
| Understanding Dahlia Forms and Sizes | view |
| Understanding ADS Classification Numbers | view |
| Color Classes | view |
| Assigning Colors | view |
Members Only
You must be signed on as a member to view the resources listed in this table
| Judge Training (16 modules) | view |
Articles
| Digging, Dividing, and Storing Tubers | view |
| The Saran Wrap Tuber Storage Method | view |
Videos
Get inspired with these videos from Kristine Albrecht, ADS member and ADS Genome Project Leader
| Grow Dahlias in Pots | view |
| Dahlia Cuttings | view |
| Starting Dahlias from Seeds | view |
| More on Starting Dahlias from Seed | view |
| Growing Seedlings in 4" Pots | view |
| A Fun Look at Staking Dahlias | view |
| An Innovating Way to Stake Dahlias | view |
More Videos
| Learn About Hybridization of Dahlias | view |
| Dahlia Cuttings featuring Mark Oldenkamp | view |
| Disbudding Dahlias | view |
| Tying Dahlias | view |
| Novelty Dahlias (the good and not so good) | view |