North America Non-native Plant

Hybrid Willow

Botanical name: Salix ×sericans

USDA symbol: SASE17

Life cycle: perennial

Habit: shrub

Native status: Non-native, reproduces and persists in the wild in Canada  

Hybrid Willow (Salix ×sericans): What Gardeners Should Know If you’ve stumbled across the name hybrid willow or Salix ×sericans in your gardening research, you’re looking at one of nature’s collaborative efforts – a hybrid willow that’s made its way into certain parts of Canada. While this particular willow might not ...

Hybrid Willow (Salix ×sericans): What Gardeners Should Know

If you’ve stumbled across the name hybrid willow or Salix ×sericans in your gardening research, you’re looking at one of nature’s collaborative efforts – a hybrid willow that’s made its way into certain parts of Canada. While this particular willow might not be the showstopper you’re looking for in your garden, understanding what it is and where it fits in the landscape puzzle can help you make better planting decisions.

What Is Salix ×sericans?

Salix ×sericans is a hybrid willow – essentially nature’s way of mixing and matching different willow species to create something new. As a perennial woody shrub, this plant typically grows as a multi-stemmed specimen that usually stays under 13 to 16 feet tall, though it can occasionally surprise you by growing taller or developing a single stem depending on where it’s planted.

The × symbol in its name is botanist-speak for this is a hybrid, which means it’s the offspring of two different willow species that decided to get cozy with each other.

Where Does It Grow?

This hybrid willow has established itself in several Canadian provinces, including New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland. It’s what botanists call a non-native species that’s been introduced but has managed to reproduce and persist on its own without human babysitting.

Should You Plant It in Your Garden?

Here’s where things get a bit tricky. While Salix ×sericans isn’t necessarily a garden villain, it’s also not a native plant champion. Since it’s non-native to the regions where it grows, you might want to consider some alternatives that will better support your local ecosystem.

Better Native Alternatives

Instead of hybrid willow, consider these native willow options that will provide similar benefits while supporting local wildlife:

  • Pussy willow (Salix discolor) – offers those fuzzy spring catkins everyone loves
  • Black willow (Salix nigra) – great for wet areas and wildlife habitat
  • Sandbar willow (Salix interior) – perfect for erosion control

Growing Conditions and Care

Like most willows, Salix ×sericans likely prefers moist conditions and can probably tolerate a range of soil types. Willows are generally pretty adaptable and forgiving, which is probably why this hybrid has managed to establish itself so well in its adopted territories.

However, since specific growing information for this particular hybrid is limited, and given its non-native status, you’re probably better off choosing a native willow species that will come with better-documented care instructions and proven benefits for local wildlife.

The Bottom Line

While Salix ×sericans isn’t necessarily a plant to avoid at all costs, it’s not the best choice for gardeners who want to support native ecosystems. If you’re drawn to willows (and who isn’t, with their graceful growth and early spring interest?), stick with native species that will provide food and habitat for local wildlife while giving you that willow aesthetic you’re after.

Remember, every plant choice in your garden is a vote for the kind of ecosystem you want to support. Why not cast your vote for the home team?

Hybrid Willow

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Salicales

Family

Salicaceae Mirb. - Willow family

Genus

Salix L. - willow

Species

Salix ×sericans Tausch ex A. Kern. [caprea × viminalis] - hybrid willow

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA