Collect Joe Pye weed seeds by finding flower heads that are faded and dry and you can plainly see the tiny thin seeds still attached to the base of the flower heads. Each seed has a tiny bit of fluff attached to it so the wind can carry it away from the mother plant. Carefully cut the stem below where the seeds are attached to the old flower head with hand shears and place the old flower head in a paper bag. Seeds are usually available for harvest in late summer and early fall.
Remove all weeds and grasses from the planting area. Enrich the planting area with as much as a 3-inch layer of compost worked into the top 3 or 4 inches of soil. Rake the area smooth.
Joe Pye weed (Eupatoriadelphus fistulosus) is a wildflower native to the eastern half of the United States in USDA horticultural zones 3 to 9. It grows to 6 feet tall and has a hollow stem with large oblong leaves up to 10 inches long. The plants can form dense colonies if grown in the right conditions–damp or wet rich soils. The flowers are attractive to a number of butterflies, and the plant can produce flowers during most of the growing season if conditions are suitable. Several improved varieties are available with brighter or darker blooms than the wild version.
Shake the seed from the flower heads and store the seeds in the paper bag in a cool (60 to 75 degrees F) location. Store for as long as four weeks without refrigeration if you are planning on planting the seeds in the fall. If you are planting the seeds in the spring and holding them over the winter, store in an open paper bag in the refrigerator for at least six weeks. The cold temperatures increase the sprouting or germination rate.
Locate an area of the garden that stays moist and receives up to six hours of sun each day. Good air circulation around the planting bed is encouraged as Joe Pye weed is susceptible to mildew diseases. Joe Pye weed does not like weed competition, so make your planting area no deeper than 2 feet if planting against a wall or fence or 4 feet wide if planting in beds that have access on both sides. The reason for this is so you can reach into the beds and pull the weeds with damaging the tall, spindly plants.
Please don’t let the fact that ‘weed’ appears in the name scare you away. Joe Pye Weed is definitely a flower you WANT in your backyard!
There are several wild species of Joe Pye Weed found in the United States, as well as many cultivars. Species that can be found in the wild include Sweet Joe Pye Weed, Hollow Joe Pye Weed, and Coastal Plain Joe Pye Weed.
What is Joe Pye Weed?
Please note that its medicinal value hasn’t been verified by modern science.
#2. Joe Pye Weed used to be part of the genus Eupatorium (now it has its own genus Eutrochium ) which was named for Mithridates VI Eupator 132-63 B.C , King of Pontus. Some folklore suggests he used plants from this genus to build up his tolerance to poison.
Proper watering for Joe Pye Weed is essential for it to thrive. Don’t allow the soil to stay dry for more than a few days. This advice is especially true while plants are getting established and during hot weather.
Eupatorium purpureum, or Joe-pye weed as most people know it, is far from an unwanted weed to me. This attractive plant produces pale pink-purple flowers that last from midsummer through fall. It’s a great addition to nearly any garden and a must have for wildlife lovers, attracting a multitude of butterflies with its sweet nectar. Growing Joe-pye weed flowers is a wonderful way to bring a little bit of nature to your backyard.
Older plants can be divided and replanted in the early spring as new growth starts or fall. When the center dies out of Joe-pye weeds in the garden, then it’s time for division. You need to dig up the entire clump, cutting away and discarding the dead center material. You can then replant the divided clumps.
What are Joe-Pye Weed Flowers?
Joe-pye weeds in the garden prefer full sun to partial shade. They also like to be kept somewhat moist in average to rich soil. Growing Joe-pye weed will even tolerate wet soil conditions but not overly dry sites. Therefore, in areas with hot, dry summers, plant these ornamental beauties in partially shaded locales.
Plants die back to the ground in late fall. This dead growth can be cut back or left over winter and cut in spring.
Spring or fall is the most suitable time for when to plant Joe-pye weed. Due to the large size of Joe-pye weed, it makes a great background plant but also needs plenty of room to grow. In fact, they are best planted on 24 inch (61 cm.) centers as they will eventually form large clumps. When growing Joe-pye weed in the garden, group it with similar woodland plants and ornamental grasses.