Species

Syringa reticulataJapanese Tree Lilac

2 other cultivars

tree

Summer Storm Japanese Tree Lilac

Syringa reticulata 'Summer Storm'

Same species

Species

Syringa reticulataJapanese Tree Lilac

2 other cultivars

Essentials

At a Glance

Plant Type

Tree

Height

264 inches

Width

192 inches

Light

Full Sun

Zones

4, 5, 6, 7

Water

Medium

Humidity

Average

Lifespan

Long-lived tree

Native To

Japan, Northern China

Toxicity

Non-toxic

The Story

Plant Bio

Syringa reticulata, the Japanese Tree Lilac, is a small, deciduous tree valued for its large, fragrant, creamy-white flower panicles that bloom in early summer, later than common lilacs. It features attractive, cherry-like, reddish-brown bark. 'Summer Storm' is a cultivar selected for its vigorous growth, strong central leader, excellent form, and large, fragrant flower clusters. It has dark green foliage that provides a good backdrop for the flowers.

Bloom Period:

EarlyLate

Uses & Benefits:

Provides a spectacular floral display in early summer when few other trees are blooming. Its handsome, cherry-like bark adds winter interest.

Its smaller stature makes it an ideal street tree or specimen for smaller landscapes where a large shade tree won't fit. It is tolerant of urban conditions.

The fragrant flowers attract a wide variety of pollinators, including bees and butterflies.

Planting

How to Grow

Select a site with full sun and well-drained soil.
Dig a hole two to three times the width of the root ball.
Place the tree in the hole, ensuring the root flare is at soil level.
Backfill with the original soil, watering to remove air pockets.
Water regularly during the first year to establish roots.
Apply a 2-3 inch layer of mulch, avoiding contact with the trunk.

Pro Tip

Avoid heavy pruning; this tree has a naturally attractive shape and blooms on old wood.

Keep It Thriving

Care Guide

Do

Provide full sun for best flowering.
Water deeply during prolonged drought.
Deadhead spent flower clusters if desired for a tidier look.

Don't

Don't plant in poorly drained or waterlogged soil.
Don't over-fertilize, which can reduce flowering.
Don't prune heavily or in late summer/fall.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Pest Check
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Excellent small specimen street treeFragrant accent for patios and bordersAnchor for a mixed shrub border

Companion Plants

Hydrangea paniculata Hemerocallis Nepeta Geranium 'Rozanne' Spiraea japonica

Multiply

Propagation Methods

Good to Know

Common Questions

Summer Storm Japanese Tree Lilac questions

What zones can Summer Storm Japanese Tree Lilac grow in?

Summer Storm Japanese Tree Lilac 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 Summer Storm Japanese Tree Lilac deer resistant?

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

When does Summer Storm Japanese Tree Lilac bloom?

Summer Storm Japanese Tree Lilac typically blooms in early summer through mid-summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Summer Storm Japanese Tree Lilac need full sun?

Summer Storm Japanese Tree Lilac does best in full sun (6+ hours).

Is Summer Storm Japanese Tree Lilac drought tolerant?

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