1 named cultivar

‘Glauca’Japanese White Pine

tree

Japanese White Pine

Pinus parviflora

The Story

Plant Bio

Pinus parviflora, Japanese white pine, is a slow-growing needled evergreen from Japan and Korea, reaching twenty to fifty feet with an irregular, often wide-spreading crown. Slightly twisted needles in bundles of five carry white stripes on their inner faces, giving the whole tree a blue-green cast, and smooth grey bark darkens and scales with age.

It is grown as much for its irregular layered form as for the foliage, and that habit plus its slow growth make it one of the classic bonsai and Japanese-garden pines. Most plants sold are grafted cultivars rather than seedlings, so the eventual size depends entirely on which one you buy — some stay under ten feet, others reach fifty.

Uses & Benefits:

Blue-green five-needle foliage on an irregular layered frame that improves with age.

Slow enough to suit a small garden, and one of the classic species for bonsai.

Supports imperial moth larvae, and the seed feeds small mammals and songbirds.

Essentials

At a Glance

Plant Type

Tree

Height

480 inches

Width

420 inches

Light

Full Sun

Zones

4, 5, 6, 7

Water

Low to moderate

Humidity

Moderate

Lifespan

Perennial

Native To

Japan and Korea

Toxicity

Non-toxic

Planting

How to Grow

Plant in full sun in freely drained soil.
Check the cultivar's mature size before siting it.
Avoid wet ground; it will not tolerate it.
Water through the first few summers only.
Pinch the spring candles to shape it.
Leave the lower branches; the layered form is the point.

Pro Tip

Almost every plant sold is a grafted cultivar, so the label decides whether you get a ten-foot shrub or a fifty-foot tree.

Keep It Thriving

Care Guide

Do

Give it full sun and sharp drainage ☀️
Check the cultivar's mature size 🏷️
Pinch candles in spring to shape ✂️
Leave the low branches on 🌲

Don't

Plant it in wet or heavy soil ❌
Shear it like a hedge ❌
Assume the label size is the species size ❌

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Inspect
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Specimen conifer in a Japanese-style gardenBonsai and container cultureSlow-growing focal point in a small garden

Companion Plants

Japanese Maple Azalea Hakone Grass Moss Hosta

Multiply

Propagation Methods

Good to Know

Common Questions

Japanese White Pine questions

What zones can Japanese White Pine grow in?

Japanese White Pine is hardy in USDA Zones 4–7. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Japanese White Pine deer resistant?

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

When does Japanese White Pine bloom?

Japanese White Pine typically blooms in mid spring through mid-spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Japanese White Pine need full sun?

Japanese White Pine does best in full sun (6+ hours).

Is Japanese White Pine drought tolerant?

Yes — once established (usually after the first full season), Japanese White Pine handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.