Dahlias forum: Identifying hardy dahlias (Zone 7b-8a)

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Name: Jackie
Lake Lanier, GA (Heat Zone 7) (Zone 8a)
I love flowers!!
Daylilies Dahlias Lilies Garden Photography
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GenXNEGeorgia
Jul 11, 2017 8:54 PM CST
I tip my hat to you. hello

I live in Northeast Georgia and didn't know a thing about Dahlias until last year when the only two I planted bloomed. This year, one came back (Duet) and one didn't (Firebird). The Firebird was in a container and it may have been too cold or or maybe that variety isn't hardy.

I've visited 4-5 online Dahlia tuber stores and none of them list a recommended hardiness zone. I walked through my friend's garden just this afternoon and she showed me 4-5 varieties that she said are "perennial" but I'm not seeing any indication on these sites and I don't want to lift tubers unless I'm dividing them.

Can anyone give a newbie some advice on how to get more of these beautiful plants that will come back year after year?

Thanks in advance for your time and help! Thank You!
“If you have a garden and a library, you have everything you need. ”
~Marcus Tullius Cicero
Name: Frank Richards
Clinton, Michigan

Garden Ideas: Master Level Celebrating Gardening: 2015 Plant Identifier
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frankrichards16
Jul 12, 2017 5:55 AM CST
Dahlias are hardy in zones 8-10.

Sounds like you are on the border, which usually means that some will overwinter and other will not.

Of course, if you have a severe (cold) winter, most if not all will die.

I am not aware of any dahlia studies that evaluated borderline hardiness.

Name: Jackie
Lake Lanier, GA (Heat Zone 7) (Zone 8a)
I love flowers!!
Daylilies Dahlias Lilies Garden Photography
Image
GenXNEGeorgia
Jul 12, 2017 6:29 AM CST
frankrichards16 said:Dahlias are hardy in zones 8-10.

Sounds like you are on the border, which usually means that some will overwinter and other will not.

Of course, if you have a severe (cold) winter, most if not all will die.

I am not aware of any dahlia studies that evaluated borderline hardiness.



Thank You! Thank You! This is extremely helpful and makes perfect sense! Thanks, Frank!
“If you have a garden and a library, you have everything you need. ”
~Marcus Tullius Cicero
Name: Jackie
Lake Lanier, GA (Heat Zone 7) (Zone 8a)
I love flowers!!
Daylilies Dahlias Lilies Garden Photography
Image
GenXNEGeorgia
Jul 12, 2017 6:33 AM CST
P.S. I moved from SE Michigan in 2007 (I lived in many places between Warren and Kalamazoo lol)-- it's a whole different climate [world] down here and we've been renting until recently. We bought in Dec 2015 and I'm starting the journey of creating a garden and Dahlias are definitely going to be a part of it.
“If you have a garden and a library, you have everything you need. ”
~Marcus Tullius Cicero
Name: Geof
NW Wisconsin (Zone 4b)
Region: Wisconsin Dahlias Garden Ideas: Level 1 Celebrating Gardening: 2015
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mandolls
Jul 12, 2017 6:58 AM CST
I have heard of people who manage to overwinter their Dahlias in the ground even in zones 5-6, with lots of mulch to protect them. However, they really should be lifted and divided at least every 2-3 years to keep them healthy.
Name: Arlene
Southold, Long Island, NY (Zone 7a)
I was one of the first 300 contributors to the plant database! Tomato Heads Houseplants Garden Ideas: Level 1 Photo Contest Winner: 2014 Celebrating Gardening: 2015
Plant Identifier Million Pollinator Garden Challenge
pirl
Jul 12, 2017 7:16 AM CST
I totally agree.

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