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Daylilies

Use our zone-based planting guide to know when to plant daylilies.

Plant name Zone Start seeds indoors (spring/fall) Start seeds outdoors (spring/fall) Plant seedlings/transplants outdoors (spring/fall) Plant spacing # plants per person
Daylilies 3a Not recommended Not recommended On/around May 15 (after last frost); Aug. 1-15 1-3 feet n/a
Daylilies 3b Not recommended Not recommended On/around May 15 (after last frost); Aug. 1-15 1-3 feet n/a
Daylilies 4a Not recommended Not recommended On/around May 15 (after last frost); Aug. 1-15 1-3 feet n/a
Daylilies 4b Not recommended Not recommended On/around May 15 (after last frost); Aug. 1-15 1-3 feet n/a
Daylilies 5a Not recommended Not recommended On/around April 15 (after last frost); Sept. 1-15 1-3 feet n/a
Daylilies 5b Not recommended Not recommended On/around April 15 (after last frost); Sept. 1-15 1-3 feet n/a
Daylilies 6a Not recommended Not recommended On/around April 15 (after last frost); Sept. 1-15 1-3 feet n/a
Daylilies 6b Not recommended Not recommended On/around April 15 (after last frost); Sept. 1-15 1-3 feet n/a
Daylilies 7a Not recommended Not recommended On/around April 15 (after last frost); Sept. 1-15 1-3 feet n/a
Daylilies 7b Not recommended Not recommended On/around April 15 (after last frost); Sept. 1-15 1-3 feet n/a
Daylilies 8a Not recommended Not recommended On/around March 15 (after last frost); Oct. 1-15 1-3 feet n/a
Daylilies 8b Not recommended Not recommended On/around March 15 (after last frost); Oct. 1-15 1-3 feet n/a
Daylilies 9a Not recommended Not recommended On/around March 15 (after last frost); Oct. 1-15 1-3 feet n/a
Daylilies 9b Not recommended Not recommended On/around March 15 (after last frost); Oct. 1-15 1-3 feet n/a
Daylilies 10a Not recommended Not recommended On/around Feb. 15 (after any threat of frost has passed); Nov. 1-15 1-3 feet n/a
Daylilies 10b Not recommended Not recommended On/around Feb. 15 (after any threat of frost has passed); Nov. 1-15 1-3 feet n/a
Daylilies 11a Not recommended Not recommended Not recommended Not recommended n/a
Daylilies 11b Not recommended Not recommended Not recommended Not recommended n/a

* Daylilies grow as rhizomes, so purchase a new plant or take a divided plant from a friend or neighbor and plant it in spring or fall.