I really need some of these...I think they come as bulbs or small plants. I am willing to buy outright or trade. For trade, I have a lot of passion flower small plants a lot of different varities) or I can root cutings, mixed clematis seeds from last year's flowers, or dried off and ready for planting cuttings of several unnamed epiphilliums, or dragon fruit epies dried off cuttings.
Im in the process of digging a large pond on my farm and are especially looking for water loving plants to put at the waters edge or even IN the water. In in zone 8B outside of Charleston SC maybe 11 miles from the ocean.
Want Great Gunnera (gunnera manicata)
Try Midcity Nursery in California. Their website is: www.midcitynursery.com. Talk to Jake, he's the owner. I got mine from him, ranging from 5 Gal to 15 Gal. Unfortunately, none survived. I am in Lone Oak, TX, due east of Dallas, zone 7b..I was forwarned, though, so it was all my fault. You might have better condition to grow them. Hope this helps and good luck,
Sita