ScarletTricycle said:When do you plant out your dahlias normally? Usually when I buy mine I pot up right away as I start my dahlias inside so they are in good shape when they finally go out and past the stage the slugs will attack and my bloom season is short. I'm zone 4b and the stores around me don't start selling dahlias usually until March 1 which is usually when I begin potting up and put under my lights.
Storing in the car though cooler - your car can also heat up during the day so it may be cycling through hot and cold and I'd think long term that might not be wise. You also don't want it to dry out and get dehydrated as a result.
I don't know if this will help you out, I'd check your last frost date and if you can grow inside until you plant out that might be good so you don't loose what might have been a nice tuber at time of purchase.
ScarletTricycle said:Good to hear! March is coming soon and I long to have blooms. Are you just doing black dahlias in your garden? I got an email from a local dahlia friend - I'll be getting a honka dahlia as she thought I could try it in a pot.