North America Non-native Plant

Koreanspice Viburnum

Botanical name: Viburnum carlesii

USDA symbol: VICA19

Life cycle: perennial

Habit: shrub

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Koreanspice Viburnum: A Fragrant Garden Favorite Worth Considering If you’ve ever caught a whiff of something absolutely divine wafting through a spring garden and wondered what IS that incredible smell?, chances are good you’ve encountered a Koreanspice viburnum (Viburnum carlesii). This deciduous shrub has earned its place in American gardens ...

Koreanspice Viburnum: A Fragrant Garden Favorite Worth Considering

If you’ve ever caught a whiff of something absolutely divine wafting through a spring garden and wondered what IS that incredible smell?, chances are good you’ve encountered a Koreanspice viburnum (Viburnum carlesii). This deciduous shrub has earned its place in American gardens primarily through its nose-tingling fragrance, though it brings plenty more to the table than just good scents.

What Exactly is Koreanspice Viburnum?

Koreanspice viburnum is a perennial, multi-stemmed woody shrub that typically stays manageable at 4-6 feet tall and wide, though it can occasionally reach up to 8 feet under ideal conditions. As its common name suggests, this plant is native to Korea, along with parts of China and Japan. It’s been introduced to North America and has naturalized in some areas, including Ohio, where it reproduces on its own in the wild.

This shrub belongs to the broader viburnum family, a group beloved by gardeners for their reliable blooms, attractive berries, and generally easy-going nature.

The Star of the Show: That Amazing Fragrance

Let’s be honest – the fragrance is why most people fall head-over-heels for this plant. In mid to late spring, Koreanspice viburnum produces clusters of small, waxy flowers that start out pink in bud and open to creamy white. The scent is often described as spicy-sweet, reminiscent of cloves or allspice, and can perfume an entire corner of your garden.

But the beauty doesn’t stop with the flowers. Come fall, this shrub puts on another show with foliage that turns lovely shades of orange and red. Small berries follow the flowers, starting red and ripening to black – though you might not see many if the birds get to them first!

Where Does Koreanspice Viburnum Shine in the Garden?

This versatile shrub works well in several garden situations:

  • Mixed shrub borders: Pairs beautifully with other spring bloomers
  • Foundation plantings: Stays reasonably compact and provides year-round structure
  • Specimen planting: Makes a lovely standalone focal point, especially near walkways where you can enjoy the fragrance
  • Cottage gardens: Fits perfectly with the informal, romantic style
  • Woodland edges: Thrives in the dappled light conditions

Growing Conditions and Care

The good news is that Koreanspice viburnum isn’t particularly fussy about its growing conditions. Here’s what it prefers:

Light: Full sun to partial shade (morning sun with afternoon shade works great in hotter climates)

Soil: Well-drained soil is key – it’s not fond of soggy feet. Average garden soil works fine, though it appreciates soil that’s been amended with compost.

Hardiness: Thrives in USDA zones 4-7, making it suitable for most temperate regions

Water: Moderate moisture needs. Once established, it’s fairly drought tolerant but will look its best with consistent moisture during dry spells.

Planting and Care Tips

Getting your Koreanspice viburnum off to a good start is straightforward:

  • When to plant: Spring or fall are ideal times
  • Spacing: Give it room to spread – plant 4-6 feet from other shrubs
  • First year care: Water regularly to help establish roots, and apply a 2-3 inch layer of mulch
  • Pruning: Minimal pruning needed – just remove dead or damaged wood and shape lightly after flowering if desired
  • Fertilizing: Generally doesn’t need special feeding in decent soil, though an annual application of compost won’t hurt

Wildlife and Pollinator Benefits

While you’ll be swooning over the fragrance, local pollinators will be equally smitten. The flowers attract bees, butterflies, and other beneficial insects. The berries provide food for various bird species, adding another layer of wildlife value to your garden.

Should You Plant It?

Koreanspice viburnum is a solid choice for gardeners looking for a reliable, fragrant shrub that doesn’t require babying. While it’s not native to North America, it’s not considered invasive in most areas and has been a garden staple for decades.

That said, if you’re specifically focused on native gardening, consider these wonderful native alternatives that offer similar benefits:

  • American cranberrybush (Viburnum trilobum): Native viburnum with showy flowers and bright red berries
  • Nannyberry (Viburnum lentago): Tall native shrub with fragrant white flowers
  • Spicebush (Lindera benzoin): Native shrub with aromatic foliage and yellow fall color

Whether you choose Koreanspice viburnum or one of its native cousins, you’ll be adding a plant that brings both beauty and function to your garden space. Just be prepared for friends and neighbors to stop and ask, What smells so amazing?

Koreanspice Viburnum

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Dipsacales

Family

Caprifoliaceae Juss. - Honeysuckle family

Genus

Viburnum L. - viburnum

Species

Viburnum carlesii Hemsl. - Koreanspice viburnum

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