Eutrochium fistulosum (Eupatorium fistulosum), also called hollow Joe-Pye weed, trumpetweed, or purple thoroughwort, is a perennial North American flowering plant in the family Asteraceae. It is native to southern Canada and throughout the eastern and south central United States from Maine west to Ontario, Wisconsin, and Missouri and south as far as Florida and Texas. The specific name fistulosum refers to the tubular stem; see fistula. Eutrochium fistulosum is a herbaceous perennial plant sometimes as much as 350 cm (140 in; 11 ft 6 in) tall. It is found in moist, rich soil alongside ditches and marshes, or in wet forests. It flowers from mid-summer to the first frosts, makes an attractive backdrop in garden plots, and is very attractive to butterflies, bees, and other nectar-feeding insects. In addition, it is a larval host to the Clymene moth, eupatorium borer moth, ruby tiger moth, and the three-lined flower moth.The plant has one simple erect stem, which is green with purple dots or longitudinal dashes and can grow over six feet tall. The upper stems are reddish or purplish. Leaves and primary subdivisions of the flower head appear in whorls of 3–5 (rarely 2 or 6, the rotational symmetry of most plants is consistent). Leaves are large, long and sharply toothed. One plant can produce several flower heads in a branching array, each head with 4-7 pink or purple disc flowers but no ray flowers.
Hollow Joe-pye weed has good disease resistance and is generally not prone to diseases. However, it can be affected by pests and diseases present in its surroundings, and these infections are usually not severe. In terms of care, this plant requires moderate maintenance. It needs regular pruning to maintain a neat appearance and promote healthy growth. Fertilizing can also help encourage flowering. Hollow Joe-pye weed is suitable for anyone with an outdoor space, such as a garden or patio, and does not demand extensive gardening experience. It may require more attention when grown indoors.
How to keep Eupatorium Fistulosum.
Light
Joe-pye weed thrives in ample light, demonstrating strong growth in full sun while also showing a level of resilience in moderately lit spots. Light oversaturation, however, can affect its growth, whereas insufficient light leads to hindered development. Native to areas with unhindered sun exposure, the demonstrated light preferences of the plant reflect the conditions of its original habitat.
Temperature
The hollow Joe-pye weed favors a temperature range of 41 to 95 ℉ (5 to 35 ℃). It naturally thrives in moderately tempered climates. It is advisable to sufficiently water it during hot summers to compensate for the increased heat.
Fertilizer
Typically, a one-time application of fertilizer in spring is adequate for Hollow Joe-pye weed, however, repeated feedings can optimize its growth. You should feed it once every one to one and a half months. The process of fertilization improves the look and functionality of the leaves, promoting balanced color and healthy texture. Additionally, it encourages root development and nutrient uptake, contributing to the plant's overall long-term health.
Pot & Repot
When you are transplanting Hollow Joe-pye weed, select a container that is 1-2 inches (2.5-5 cm) bigger, making sure it has sufficient drainage. The potting mix used should be well-draining. Carry out the repotting in either spring or fall, making certain that the root ball is somewhat beneath the rim of the pot for flowers. After completing the repotting, water abundantly and position it in a cosy area out of direct sunlight.
Botanical profile.
- Plant Type
- Herb
- Life Cycle
- Perennial
- Genus
- Eupatorium
- Family
- Compositae
- Hardiness Zone
- 4-10
- Mature Height
- 1.22 m to 2.44 m
- Mature Spread
- 0.61 m to 1.22 m
- Leaf Color
- Green
- Leaf Type
- Deciduous
- Flower Color
- Pink, Purple
- Flower Size
- 2.54 cm
- Bloom Time
- Mid summer
- Planting Time
- Autumn, Spring
- Harvest Time
- Mid summer, Late summer
Other names.
