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Japanese Tree Lilac vs Black Walnut

Syringa reticulata

Juglans nigra

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Japanese Tree Lilac
Black Walnut

Japanese Tree Lilac is an attractive, heavy-flowering lilac with fragrant white blossoms. It can be pruned to a single stem or grown as a multi-stemmed shrub.

Japanese Tree Lilac's dark reddish-brown bark peels as the tree ages, creating visual appeal for any yard, especially in the winter.

This tree is often planted along boulevards and its attractive white flowers signal spring to all who drive by.

The Black Walnut is a slow growing, large, straight-stemmed tree with an open crown. It produces dense, very hard, edible nuts.

Black Walnut has a deeply-furrowed, black bark. Its leaves are about 1 foot long, composed of 15 - 23 slightly stalked leaflets on a moderately stout stock which provide good dappled shade.

Despite being highly valued for its edible nuts and its shade tree aesthetics, it is rare to see this tree on the prairies.

Note: Black Walnut's roots produce a substance named juglone that is toxic to some other plants. Consider this when choosing where you plant a black walnut, as you will not be able to grow tomato, potato, cabbage, eggplant, blueberry, azalea, rhododendron, lilac, red pine and apple in the surrounding area.

Note: Plant this tree once. It will not respond well to transplanting.

Note: Although self-pollinating, planting two trees significantly improves nut production.

A top CO2 absorbing species. Experts think this tree may help climate change more than others.

JAPANESE TREE LILAC QUICK FACTS

BLACK WALNUT QUICK FACTS

Zone: 3a
Zone: 3a
Height: 6 m (20 ft)
Height: 14 m (45 ft)
Spread: 6 m (20 ft)
Spread: 9 m (30 ft)
Moisture: normal
Moisture: dry, normal
Light: full sun
Light: partial shade, full sun
Flowers: white with yellow anthers
Nuts: corrugated nut with edible meat
Growth rate: medium
Growth rate: slow
Life span: medium
Life span: long
Suckering: low
Suckering: low

In row spacing: 0.9 m (3 ft)

Between row spacing: 5 m (16 ft)



Other Names: american walnut