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Yarrow/Achillea

Use our zone-based planting guide to know when to plant yarrow/achillea.

Plant name Zone Start seeds indoors (spring/fall) Start seeds outdoors (spring/fall) Plant seedlings/transplants outdoors (spring/fall) Plant spacing # plants per person
Yarrow/Achillea 3a March 1-15 On/around May 15 (after last frost) On/around May 15 (after last frost) 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 3b March 1-15 On/around May 15 (after last frost) On/around May 15 (after last frost) 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 4a March 1-15 On/around May 15 (after last frost) On/around May 15 (after last frost) 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 4b March 1-15 On/around May 15 (after last frost) On/around May 15 (after last frost) 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 5a Feb. 1-15 On/around April 15 (after last frost) On/around April 15 (after last frost) 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 5b Feb. 1-15 On/around April 15 (after last frost) On/around April 15 (after last frost) 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 6a Feb. 1-15 On/around April 15 (after last frost) On/around April 15 (after last frost) 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 6b Feb. 1-15 On/around April 15 (after last frost) On/around April 15 (after last frost) 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 7a Feb. 1-15 On/around April 15 (after last frost) On/around April 15 (after last frost) 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 7b Feb. 1-15 On/around April 15 (after last frost) On/around April 15 (after last frost) 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 8a Jan. 1-15 On/around March 15 (after last frost) On/around March 15 (after last frost) 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 8b Jan. 1-15 On/around March 15 (after last frost) On/around March 15 (after last frost) 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 9a Dec. 1-15 On/around Feb. 15 (after last frost) On/around Feb. 15 (after last frost) 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 9b Dec. 1-15 On/around Feb. 15 (after last frost) On/around Feb. 15 (after last frost) 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 10a year-round year-round year-round 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 10b year-round year-round year-round 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 11a year-round year-round year-round 1-2 feet 1 (or as needed for landscaping)
Yarrow/Achillea 11b year-round year-round year-round 1-2 feet 1 (or as needed for landscaping)

* Yarrow prefers hot weather. Start seeds indoors 8-10 weeks before the average last frost date or before planting outdoors. Grows as a perennial in Zones 9 and higher; grows as an annual elsewhere.