* I full sun Y partial shade U full shade
  DEPTH (INCHES) BLOOMING SEASON HEIGHT (INCHES) NOTES
  3–4 Spring to summer 6–60 Usually pest-free; a great cut flower
  1–2 Summer to fall 8–18 North of Zone 10, lift in fall
  4 Summer to fall 8–20 An excellent flower for drying; north of Zone 7, plant in spring, lift in fall
  2 Summer 8–24 North of Zone 10, plant in spring, lift in fall
  1–4 Summer 24–36 Fragrant; north of Zone 8, plant in spring, lift in fall
  Level Summer 18–60 North of Zone 8, plant in spring, lift in fall
  1–2 Spring to fall 3–12 Naturalizes well in warm areas; north of Zone 7, lift in fall
  4–6 Late summer 12–60 North of Zone 9, lift in fall
  2 Summer 12–36 Mulch in winter in Zones 3 to 6
  2 Summer 12–24 Fragrant; can be grown outdoors in warm climates
  3–4 Summer 6–20 Does well in woodland settings
  3–6 Early summer to early fall 12–80 North of Zone 10, lift in fall
  4 Spring to late summer 3–72 Divide and replant rhizomes every two to five years
  4–6 Early summer 36 Fragrant; self-sows; requires excellent drainage
  4 Summer 18–24 North of Zone 8, lift in fall
  2 Summer 2–12 Plant in confined area to control
  2 Early summer 3–18 North of Zone 6, lift in fall
  3–4 Spring 8–20 Excellent for borders, rock gardens and naturalizing
  1–2 Spring 12 Hardy, but requires shelter from strong, cold winds
  3 Early spring 5 Naturalizes well in grass
  6 Early spring 14–24 Plant under shrubs or in a border
  3 Midspring 6–30 Different species can be planted in rock gardens, woodland gardens, or borders
  3 Spring 4–10 Self-sows easily; plant in rock gardens, raised beds, or under shrubs
  2–3 Late winter to spring 6–12 Use as a border plant or in wildflower and rock gardens; self-sows easily
  4 Early spring to early summer 3–48 Naturalizes well; a good cut flower
  4 Early spring to midsummer 18–48 An excellent cut flower
  3–4 Late spring to early summer 6–60 Usually pest-free; a great cut flower
  3 Spring 6–12 Best when clustered and planted in an area that will not dry out in summer
  4 Spring 6–18 Naturalizes well
  3 Spring 4–6 Fragrant; naturalizes easily
  4 Spring to summer 6–24 North of Zone 5, plant in spring, lift in fall
  3 Spring 4–6 Naturalizes easily; makes an attractive edging
  4–6 Early to late spring 8–30 Excellent for borders, rock gardens, and naturalizing
  2–3 Late winter to spring 2–4 Self-sows and naturalizes easily