Dahlia Tuber FAQ

Useful information about how to place your order and our guidelines.

Steps for storing tubers before planting.

Information regarding how to grow and propagate your dahlias.

Information about potential disease on your tubers.

If you still have questions after reviewing our FAQs, fill out our Tuber Support Ticket. We will respond within 3-5 business days.

Growing Dahlias

For a complete informational guide to growing, head to the shop to purchase our Dahlia Guide.

Store your dahlias in a cool place until you are ready to plant. Recommended storage temperature is between 38º-45ºF and at 75%-85% relative humidity. If the humidity is too high where the tubers are being stored, it may cause issues with rot or mold.
If you are starting your tubers early or growing in containers, we recommend using soil that is free of pre-added fertilizers or compost. Please note that we do not recommend growing our tubers in pots, containers, or plastic bags.

When you are ready to plant, choose a spot for your tubers that enjoys lots of sun and well-draining soil. Tubers should be placed 4-6" deep and 12" apart. Be careful not to overwater at this stage.

Your dahlia should sprout within 4-8 weeks after planting. Some common reasons a tuber may fail to sprout are:
  • No eye - The tuber needs to have an eye to produce a plant. We triple check for eyes before we ship to you.
  • Too much water - The soil should be moist when the tuber is planted, but shouldn’t be watered until it sprouts to avoid rot.
  • Too dry - If your soil is too dry, it could dry out your tuber and not grow.
If any of your tubers fail to produce an eye, let us know by May 31, 2025 so we can replace the tuber or issue a merchandise credit. Please use this link to fill out a tuber support ticket if you experience any issues.

If you have questions about growing dahlias, we recommend connecting with your local American Dahlia Society or another horticulture or gardening club near you. We rely on regular lab analysis of our soil, water, and plant material to determine the methods we use. What works for us growing on a commercial scale in our zone may not work for you, and we aren't able to offer advice specific to your garden without knowing the details.

If you have questions about possible disease or virus, please visit our dahlia disease page for more information. 


Additional resources:

Check out our Instagram series about dahlias + propagation using our story highlight "dahlia tubers." Use this link to access our instagram page. 

American Dahlia Society

Growing Dahlias - Iowa State Extension & Outreach

American Specialty Cut Flower Association

The Gardener's Workshop

Swan Island's video about cuttings can be found here.

 Clara Joyce's info about propagating can be found here.

Jennie Love's article about cuttings to build your stock can be found here.

 
Tubers come in all shapes and sizes, but all of these will produce beautiful plants!