When to plant flowers
Planting dates for 18 popular flowers, worked out from your zone or state’s frost dates. Every timing rule comes from a state extension service, and each page links the pages it was read on.
Flower planting planner (free PDF)
Seed-starting weeks, plant-out dates by zone, fall bulb rules, depth chart, succession sheet, seed log and bed plan, in one printable booklet.
Free to print for personal use. More printables on the downloads page.
Annual and cut flowers (start indoors or sow after frost)
Summer bulbs, tubers and corms (plant in spring)
Spring-flowering bulbs (plant in fall)
Perennials, shrubs and lilies
More flowers are added as their timing rules are checked against extension pages. Looking for vegetables and herbs? See the crop directory.