I see some dahlias - including the monster dinner plate ones (spectacular!) - growing here in Albuquerque. Do these overwinter, and/or what is needed to keep them year-to-year here?

Also, I presume they need deep/rich soil and lots of water....as they do elsewhere....?

Thanks!
John R in ABQ

I live in arid country as well and don't water my dahlias more than once per week in the hottest summers (100+). I use a soaker hose and water deeply. It's too late this year, but next summer observe the plants in the morning before it heats up and only water if they appear slightly droopy. Be sure to mulch to keep the ground cooler. Push the plants to their limit. Water in the a.m. to avoid powdery mildew.

I have several different types and sizes planted in the beds on the south side of my house that I leave in the ground year-round. I have a 90% or better return rate.

I had been digging up and storing my dalhias each winter until knee surgery prevented me doing so 12 years ago. To my surprise - all came back up. Many of the same dahlias are still blooming in the garden right now.

Last year we had a low of -17. It is key that the tubers are planted in beds with a southern exposure where heat radiated from the house keeps the ground from freezing solidly.

Hope this saves you some labor!