North America Non-native Plant

Salix Rosmarinifolia

Botanical name: Salix rosmarinifolia

USDA symbol: SARO12

Native status: Not native but doesn't reproduce and persist in the wild

Rosemary-Leaved Willow: A Petite European Beauty for Wet Gardens Meet Salix rosmarinifolia, better known as the rosemary-leaved willow – a charming little shrub that’s as unique as its name suggests. Don’t let the willow part fool you into expecting a towering tree; this petite performer stays refreshingly compact, making it ...

Rosemary-Leaved Willow: A Petite European Beauty for Wet Gardens

Meet Salix rosmarinifolia, better known as the rosemary-leaved willow – a charming little shrub that’s as unique as its name suggests. Don’t let the willow part fool you into expecting a towering tree; this petite performer stays refreshingly compact, making it a delightful surprise in the world of willows.

What Makes This Willow Special?

The rosemary-leaved willow earned its common name honestly – its narrow, linear leaves bear a striking resemblance to culinary rosemary, though they’re silvery-green rather than the darker hue of their herb namesake. This European native brings an interesting texture to gardens with its fine foliage and compact growth habit, typically reaching just 1-3 feet in both height and width.

Where Does It Come From?

Originally hailing from Northern and Central Europe, this willow has adapted to cooler climates and moist conditions. It’s naturally found in wetland areas, alpine regions, and areas with consistently moist soils.

Garden Appeal and Design Uses

The rosemary-leaved willow shines in several garden situations:

  • Rock gardens: Its small stature and interesting foliage texture make it perfect for tucking between stones
  • Alpine gardens: Mimics its natural mountain habitat beautifully
  • Wet areas: Thrives where other plants might struggle with too much moisture
  • Ground cover: Creates interesting textural carpets in appropriate conditions
  • Container gardens: Its compact size makes it suitable for larger pots

Growing Conditions and Care

This little willow is surprisingly easy to please, especially if you can meet its moisture preferences:

  • Soil: Prefers moist to wet soils but tolerates poor soil conditions
  • Light: Full sun to partial shade
  • Hardiness: USDA zones 3-7
  • Water: Consistent moisture is key to success

Planting and Maintenance Tips

The rosemary-leaved willow is refreshingly low-maintenance once established. Plant it in spring in a location that stays consistently moist. While it can tolerate some drought once established, it truly thrives with regular moisture. Light pruning after the spring flowering period can help maintain its shape, though it’s not strictly necessary.

Wildlife and Pollinator Benefits

Like most willows, this species produces early spring catkins that provide valuable nectar and pollen when few other plants are blooming. Early emerging bees and other pollinators appreciate this reliable food source during the lean early season months.

Should You Plant It?

The rosemary-leaved willow can be a lovely addition to the right garden, particularly if you have consistently moist conditions and appreciate unique textures. However, since it’s not native to North America, consider whether native alternatives might better serve your local ecosystem.

For similar aesthetic appeal with greater ecological benefits, consider native alternatives like:

  • Native willow species appropriate to your region
  • Native sedges for similar fine texture
  • Regional wetland shrubs that provide comparable habitat value

The Bottom Line

Salix rosmarinifolia offers gardeners something genuinely different – a willow that won’t take over your yard but will add interesting texture and early season pollinator support. If you have the right conditions and appreciate plants with unique character, this European charmer might just earn a spot in your garden. Just remember to source it responsibly and consider the native alternatives that might serve your local wildlife even better.

Salix Rosmarinifolia

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 rosmarinifolia L.

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