(Phlox drummondii) Phlox is an annual wildflower. It is a beautiful ornamental with delightful fragrance. Phlox is native to Texas and found in a wide range across the Southeast. It is named for Scottish botanist Thomas Drummond, who collected samples and sent them back to Europe in the 1800s. The flowers are edible and their sweet flavor is a favorite in salads. Sow seeds indoors 4-6 weeks before last frost or direct sow into the garden when soil temperatures have warmed. Ideal germination temperature is 65-70 F. Seeds germinate in 7-14 days. Surface sow seeds and lightly cover with a fine sprinkle of soil. Space 8-12 inches apart. Phlox is a sun-loving plant, but enjoys some afternoon shade in the heat of summer. Phlox is one of the few plants that grow well near black walnut trees.