Petasites japonicus var giganteus aka 'Dinosaur food' I am thinking of buying this but need to know a little bit more about it than they are telling us at 'Parks'. Thanks
It is huge and can be invasive, but easy to pull up in loose soil. Needs lots of water. Does well in a bog. Goes dormant in the winter and has an insignificant flower in the spring. What else do you need to know.?
Here is a link that might be useful: Petasites japonicus
this is a great plant in a shaded area. in ky. i have to shade it from hot summer sun, but where you are, part sun/shade will be fine. my 3 inch pot has developed into a 10 foot patch in 4 years. spreads by root, and will keep spreading. if you just dig the sprouts around the edge of the patch you can easily control the size of the patch. i have clay soil here and have to water it in the heat of summer. your soil, i believe is sandy, so you may have to water, or plant in a bog. dig a hole 18 inches deep, use a heavy (6 mil) layer of plastic to line the hole to retain moisture. here it gets 5 foot tall with leaves 2-3 foot across. i'm sending you an email with a link to my online photos on shutterfly. i have plenty, so if you decide to try it , let me know, maybe we can trade something. susgarden