I would like to know when can I plant the canna bulb its self without starting in a pot first as I have over 60 to plant. I live in southern Ohio, first frost is mid May but if I wait that long to plant I dont get good growth during the summer. thanks
Planting Canna Bulbs
There's no way to get around it. If you want the kind of good growth that you require, then you will have to start your cannas indoors and set the started plants out into your garden in mid to late May.
However, many Ohio gardeners still manage to get pretty good growth from their cannas by sampling planting the rhizomes in a very sunny (at least six hours of sun), south facing, warmest part of their garden. Some canna varieties grow better than (and are hardier than) others also. Contact your local Ohio State University (OSU) Cooperative Extension for assistance.