Cosmos, marigolds, calendula, sea holly, sunflower, Salvia, Snapdragons, Delphiniums, and Love-in-a-Mist are also easy to sow ...

Plant kale from seed in September after temperatures have cooled. Spinach is another bitter ... Plant cold-hardy varieties like 'Giant Winter' and 'Winter Bloomsdale.' Arugula is also very cold ...