Mars, meanwhile, has two moons â Phobos and Deimos. Like our own Moon, both of the Martian moons are tidally locked to Mars, so they always present the same face to the planet. Compared to our Moon, they are rough and asteroid-like in appearance, and also much smaller.
Hardy pond plants are classified as water plants that will survive the winter up to zone 4. Hardy plants will come back every year and are preferred over tropical plants due to this reason.
Climbing hydrangeas are desirable for their hardiness, large, beautiful, spring-blooming white flowers and climbing habit, although they can also be grown as shrubs. Climbing hydrangeas are cold-hardy to United States Department of Agriculture (USDA) growing zone 4, according to the University of Connecticut.