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.
Pinks: (Dianthus) Part to full sun Hardy in zones 3-8**. Cottage garden pinks are excellent low growing, prolific bloomers for the front of a border, rock garden, or edging. Many varieties are hardy to zone 3 or 4. Some self seed. Pay careful attention when selecting dianthus - some are hardy perennials, some are biennials and some are annuals in the northern garden.