Questions about my Dahlia tubers!
I am new to gardening and got carried away. I have a lot of flowers growing at the moment. I did not even realised Dahlias weren't perennial. When I saw them on sale in March I bought several bags, as they were quite cheap in Morrisons and Home Bargains! I thought it would be a simple case of putting them in the ground, but it has been too cold. Then I learned that it's best to grow Dahlia tubers inside. So I had a total of 25 tubers and potted them into medium and large size pots. Only a couple of them haven't started shooting yet. Various questions:
Do you think they will come up? Are they just still asleep? Is there a chance I could have put the tuber upside down?
Also, here are some photos of the pots in my growhouse. Another question - is the first one dying or dead? It had proper leaves at one point. I put it outside as I was running out of space inside, and I am wondering if the cold has killed him?
Another question - I was wondering why all the shoots are at thw side of the pots. Should I have used shallow but wide pots instead? Do tubers grow roots down aswell or is all from the top such that I could have put them in a shallow tray and not wasted so much compost? It was a lot of work potting them all into individual pots and a lot of guesswork as to which way to lay them down. Please let me know your thoughts and advice so I can learn for next time what to do. Advice I read online was all different! The next job is putting them in the soil. I may have questions about that too!!
Thank you in advance