i have a question, i have never done dahlias from tubers before, but i saw a bag on sale of 10 for $2.88 and couldnt pass that up! So I got a few bags, lol. I put them in the ground the last week of June, I have growth already, some already about 5", supposed to grow to 3.5'. Was this too late, will i get blooms? Also, If I dont want to dig up all 30 in the fall, what can i do to protect them in the ground? I have never brought in any of my glads and they come back fine, i never even mulch. but since the dahlias arent as deep in the ground i am scared to leave them in. Should I cut them back and cover with plastic maybe? Could I cover them with a few inches of mulch and take it off in the spring? Help me! What can I do?? If it matters, The types I have are:

Blue Boy

Thomas Edison

Edinburgh

Pretty In Pink

Lilac Bull

Onesta

Pretty Lady

Lucky Number

Pink Attraction

Love Parade

Thank you!!