North America Non-native Plant

Blueleaf Honeysuckle

Botanical name: Lonicera korolkowii

USDA symbol: LOKO2

Life cycle: perennial

Habit: shrub

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

Synonyms: Lonicera korolkowii Stapf var. floribunda G. Nicholson (LOKOF2)   

Blueleaf Honeysuckle: A Non-Native Shrub Worth Considering (With Caveats) If you’ve been browsing through shrub catalogs and stumbled across blueleaf honeysuckle (Lonicera korolkowii), you might be wondering whether this pink-flowered beauty deserves a spot in your garden. This perennial shrub brings some lovely qualities to the table, but there are ...

Blueleaf Honeysuckle: A Non-Native Shrub Worth Considering (With Caveats)

If you’ve been browsing through shrub catalogs and stumbled across blueleaf honeysuckle (Lonicera korolkowii), you might be wondering whether this pink-flowered beauty deserves a spot in your garden. This perennial shrub brings some lovely qualities to the table, but there are a few things every gardener should know before planting.

What Exactly Is Blueleaf Honeysuckle?

Blueleaf honeysuckle is a multi-stemmed woody shrub that typically grows 4-5 meters (13-16 feet) tall, though it can sometimes stretch taller or remain more compact depending on growing conditions. True to its common name, this plant sports distinctive blue-green foliage that provides a nice backdrop for its tubular pink to rose-colored flowers that bloom in late spring and early summer.

The botanical name Lonicera korolkowii may also appear in some references as Lonicera korolkowii Stapf var. floribunda G. Nicholson, but they refer to the same plant. After the flowers fade, the shrub produces bright red berries that add autumn interest.

The Native Status Reality Check

Here’s where things get a bit complicated: blueleaf honeysuckle isn’t native to North America. Originally from Central Asia’s Turkestan region, this species has been introduced and now reproduces spontaneously in the wild in some areas. Currently, it’s been documented growing in New Hampshire, though it may be present in other states as well.

While it’s not currently listed as invasive or noxious, its ability to reproduce and persist without human help means gardeners should approach it thoughtfully. If you’re passionate about supporting native ecosystems, you might want to consider native alternatives first.

Why Gardeners Are Drawn to This Shrub

Despite its non-native status, blueleaf honeysuckle offers several appealing qualities:

  • Attractive pink to rose-colored flowers that bloom reliably each year
  • Unique blue-green foliage that stands out from typical green-leafed shrubs
  • Bright red berries that provide fall and winter interest
  • Drought tolerance once established
  • Low maintenance requirements
  • Pollinator benefits – the flowers attract hummingbirds, butterflies, and bees

Garden Design and Landscape Use

Blueleaf honeysuckle works well in several garden settings. It makes an excellent specimen shrub where its unusual foliage color can really shine, or it can be incorporated into mixed shrub borders for added texture and seasonal interest. The plant also fits nicely into cottage garden styles and wildlife-friendly landscapes where its pollinator appeal is valued.

This shrub is hardy in USDA zones 3-7, making it suitable for many northern and cooler climates where gardeners appreciate reliable, cold-hardy flowering shrubs.

Growing Blueleaf Honeysuckle Successfully

If you decide to grow this shrub, the good news is that it’s fairly easy to please:

  • Location: Plant in full sun to partial shade
  • Soil: Well-drained soil is essential – this shrub doesn’t like wet feet
  • Planting time: Spring or fall are ideal
  • Watering: Provide regular water the first year to help establishment, then it becomes quite drought tolerant
  • Pruning: Prune after flowering if needed to maintain shape
  • Maintenance: Generally low maintenance once established

The Native Alternative Conversation

While blueleaf honeysuckle has its merits, consider exploring native honeysuckle species or other native shrubs that could provide similar benefits. Native plants typically support local wildlife better and integrate more seamlessly into existing ecosystems.

Some native alternatives worth researching include American fly honeysuckle (Lonicera canadensis) or other native flowering shrubs that attract pollinators and provide seasonal interest.

Making Your Decision

Blueleaf honeysuckle occupies an interesting middle ground – it’s not native, but it’s also not currently flagged as invasive. If you’re drawn to its unique appearance and reliable performance, and you garden in zones 3-7, it could work in your landscape. Just be mindful of its non-native status and consider native alternatives first.

Whatever you decide, remember that every garden is an opportunity to support local ecosystems while creating beauty – sometimes that means choosing the native option, and sometimes it means making informed decisions about non-native plants that won’t cause ecological harm.

Blueleaf Honeysuckle

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

Lonicera L. - honeysuckle

Species

Lonicera korolkowii Stapf - blueleaf honeysuckle

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