What Grows Well In Zone 5?

What Grows Well In Zone 5? A large variety of perennials grow wonderfully in zone 5 gardens. Creeping phlox, dianthus, creeping thyme, stonecrop, and violets are excellent ground covers for sunny zone 5 gardens. For all season long color, interplant zone 5 hardy perennials like: Echinacea. What annuals grow in Zone 5? Geraniums. Lantana. Petunia.