Just breed this combination: Earth + Plant
earth element dragon + dark element dragon = hedgehog dragon
There is no "marsh" dragon in dragonvale but if you are referring to the moss dragon the best way to get it is earth and plant, although you also have a chance to breed the tree dragon.
To get the rattlesnake dragon on dragon city you breed the dark dragon with the plant dragon.i am not kidding.if you want even cooler dragons try breeding dark with water or metal with dark. Trust me they are so cool.
Mine+ plant breed the evergreen and metal Forge+plant
breed with pearl and plant
with a plant and dandelion if you dont bilive couse i have one i dont know if you will have one you see its just for lucky people like me
The 2 dragons to get the cactus is EARTH+PLANT.
A Plant dragon.
Breed plant and plant.
i ll breed metal and plant
You have to breed a plant and a fire dragon.