Species

Magnolia virginianaSweetbay Magnolia

5 other cultivars

treeN. America Native

Keltyk Sweetbay Magnolia

Magnolia virginiana 'Keltyk Sweetbay'

The Story

Plant Bio

Magnolia virginiana is a native North American tree known for its lemon-scented, creamy-white flowers and handsome foliage. It is often multi-stemmed and semi-evergreen, thriving in moist to wet soils.

Keltyk Sweetbay, also sold as Moonglow ('MVMTF'), is a superior selection prized for its strong, upright, single-trunked tree form and dense, uniform canopy. It exhibits greater evergreen tendencies, holding its leaves through winter in many climates.

Uses & Benefits:

This cultivar's key ornamental feature is its stately, columnar form, making it a superb vertical accent in the landscape. Its dense, semi-evergreen to evergreen foliage provides year-round screening, and the classic, fragrant magnolia flowers are an added bonus.

Its narrow, upright habit makes it an ideal choice for smaller yards, narrow planting strips, or as a formal street tree. It can be used to create a tall, elegant screen for privacy without taking up a large footprint.

As a cultivar of a native species, it supports local ecosystems. It provides nectar for pollinators, seeds for birds, and is a host plant for the sweetbay silkmoth and palamedes swallowtail butterfly.

SpeciesMagnolia virginianaSweetbay Magnolia

Essentials

At a Glance

Plant Type

Tree

Height

420 inches

Width

216 inches

Light

Full Sun, Partial Sun

Zones

5, 6, 7, 8, 9

Water

Medium to wet

Humidity

High

Lifespan

50+ years

Native To

Eastern United States

Toxicity

Non-toxic

Bloom period

Late spring – Mid-summer

In flower about 3 months of the year

Planting

How to Grow

Select a site with full sun to part shade and consistently moist soil
Dig a hole twice the width of the root ball, but no deeper
Ensure the root flare is at or slightly above ground level
Backfill with native soil, watering to settle
Water deeply 2-3 times a week for the first season
Mulch with pine straw or bark, keeping it away from the trunk

Pro Tip

Unlike the species, this cultivar has a strong central leader; avoid unnecessary pruning to maintain its excellent natural form.

Keep It Thriving

Care Guide

Do

Provide consistent moisture, especially during establishment
Plant in acidic soil for best performance
Allow ample overhead space for it to reach its mature height
Protect from harsh winter winds in the northern end of its range

Don't

Do not plant in dry, compacted, or alkaline soils
Avoid 'topping' the tree, which ruins its structure
Don't allow the soil to completely dry out
Avoid piling mulch against the trunk

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Mulch
Plant
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Upright specimen for formal landscapesExcellent street tree where moisture is adequateTall screen or hedge in narrow spaces

Companion Plants

Fothergilla gardenii Chasmanthium latifolium Vaccinium corymbosum Calycanthus floridus Rodgersia aesculifolia

Multiply

Propagation Methods

Good to Know

Common Questions

Keltyk Sweetbay Magnolia questions

What zones can Keltyk Sweetbay Magnolia grow in?

Keltyk Sweetbay Magnolia is hardy in USDA Zones 5–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Keltyk Sweetbay Magnolia deer resistant?

Yes — Keltyk Sweetbay Magnolia is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Keltyk Sweetbay Magnolia bloom?

Keltyk Sweetbay Magnolia typically blooms in late spring through mid-summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Keltyk Sweetbay Magnolia need full sun?

Keltyk Sweetbay Magnolia does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.