Cold Hardy Prickly Pear Cactus Pad
Texas Prickly Cactus(Opuntia lindheimeri) pad is approximately 8-12 inches.
To get pad to root, lay on top of soil in a sunny well drained area. Soil can be gently worked before placing cactus pad over it in order to assist in allowing the pad to root in. A rock can also be placed on top of the pad toward the base where the cut mark is to also further assist the pad root and keep it from inverting(Prickly pear pads are known to invert when attempting to root into new soil).
This variety of prickly pear is hardy to -10F (but probably could survive colder if on the south side of a building or protected area/microclimate.
These cactus pads are edible for people and tortoise.