Sowing feverfew (Tanacetum parthenium) indoors in the fall is an excellent strategy to get a head start on the growing season for next spring. In Zone 5, you should begin this process about 6-8 weeks before the first expected frost, which typically falls between late September and early October. By starting the seeds indoors during the fall, you allow them to establish early, leading to stronger plants that will bloom sooner in the spring. I use Soil Blocks.

Plant feverfew outdoors after the danger of frost has passed, typically in mid to late May. Start seeds indoors about 6-8 weeks before the last expected frost (around mid-February to early March)

Transplant feverfew outdoors in early to mid-fall, ideally 4-6 weeks before the first expected frost. This allows the plants enough time to establish their roots before the cold winter sets in. In Zone 5, this typically means transplanting in late September to early October.

Harvest feverfew flowers when they are fully open and vibrant but before they begin to wilt or fade. This ensures the flowers are at their peak beauty and freshness. The best time of day to harvest is in the early morning, when the flowers are hydrated and not stressed from the heat of the day.

Water the transplants thoroughly after planting to settle the soil and help the roots establish. Mulch around the base of the plants with straw or leaf mulch to help retain moisture and protect the roots from winter cold. As the temperature drops, feverfew may slow its growth but will establish itself and be ready to flourish the following spring.