AUNT DEE wisteria

✅ Main characteristics

• This is a deciduous woody vine called Wisteria macrostachya ‘Aunt Dee’ (often also referred to as the variety or subspecies frutescens var. macrostachya). 
• Flowers in hanging clusters of lilac-purple color, fragrant. 
• Foliage: in spring, the leaves appear in a bronze or coppery hue and then turn green. 
• Growth: vigorous plant that climbs strongly and needs a solid support (trellis, pergola, wall, arch). 
• Hardiness: tolerates up to USDA zone 4 (i.e., approximately -30°C), so suitable for cold climates. 
• Mature size: can reach about 26-32 feet tall with good support, and about 5-8 feet wide in some conditions.
• Attractions: attracts butterflies and hummingbirds; deer resistant. 

🎯 Why it's a good option

• If you're looking for a wisteria that performs better in colder climates than some of the more famous but fragile Asian varieties, ‘Aunt Dee’ is an excellent choice.
• It offers a beautiful architectural presence thanks to its abundant flower clusters and climbing habit.
• The bronze foliage in spring adds aesthetic appeal before flowering.
• Less aggressive than some other Asian wisterias (which can become invasive). 

⚠️ Keep in mind / precautions

• It requires very solid support, as it is very vigorous. If the trellis or wall is not sturdy enough, this can cause problems.
• It must be planted in full sun for good flowering. In partial shade, flowers may be less abundant. 
• Ensure the soil is well-drained: “well-drained, medium to moist soil” is recommended. 
• As with many wisteria varieties, pruning is important to control the shape and encourage flowering. Prune shortly after flowering. 
• Beware of toxicity: the seeds and parts of the plant are considered potentially toxic if ingested. 

🛠️ Planting & care tips

• Choose a location in full sun (at least 6 hours per day) with a sturdy support (south-facing wall, pergola, arbor).
• Dig a large hole, loosen the soil, and incorporate organic matter if the soil is poor.
• When planting, make sure the crown is level with the ground. Water regularly until the plant is well established.
• Maintain a layer of mulch around the plant to retain moisture and limit weeds.
• After flowering, prune the side shoots to encourage flowering branches the following year. A second structural pruning can be done in winter if necessary.
• Keep an eye on overgrowth: this plant climbs and can become quite large. Choose a planting area where it will have room to grow without getting in the way.
• In Quebec's climate, protect young plants during their first few winters if they are not yet well established.