Dahlias – Container Growing

annamarie788 added on April 21, 2017 | Answered

Do I need to limit the dahlias to one tuber per pot? How big should the pot be for one dahlia, or how big for more than one dahlia? Thank You, Anna

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Rena Esset
Answered on April 22, 2017


Dahlias come in a variety of mature sizes - from 12-14" tall to 6 feet tall. You need to consider the mature size of the plant in order to answer your question. I'd allow 1 tuber per 12" pot for most size dahlias and maybe a bit larger pot for a dinner plate or tall variety. Here's some additional info: https://www.leafari.com/dahlia-planting-guide.html

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