My tuber sale is usually in late December or January. The tubers ship out in April of the next year as you do not plant dahlias until late Spring when the ground warms up to around 60 degrees. If you plant too early in cold soil, the tuber will sit there waiting for the ground to warm up and could rot.
Sorry I do not sell dahlia seeds. I just collect seeds for my own breeding purposes.
I am growing dahlias in the Piedmont Triad of North Carolina in plant hardiness zone 7. We do have hot and humid summers with many days in the 90's. All the dahlias that I sell do well in these conditions in my garden. They may grow differently due to your garden setup or soil conditions. I like dahlias to stay true to their form. If a dahlia that I grow and sell does not stay true to form, it is noted in the description.
Please see FAQ tab on our website for frequently asked questions. Remember dahlia tubers ship in April of 2022. Thank you for your support. I know you will enjoy your dahlia flowers during the growing season.