Black Walnut

Black Walnut Juglans Nigra

What is the plant

Black walnut is a large, rugged, deciduous tree, 50-75 ft. in height and width, sometimes reaching 150 ft. tall. Dark, furrowed bark on the trunk. Wide-spreading branches form an upright, umbrella-like crown in the woods or a round-topped crown in the open. The well-formed trunk is usually devoid of branches a considerable distance from the ground. Leaves up to 2 feet long with 5 to 11 pairs of leaflets along a central axis and a single leaflet at the tip; midrib of the lateral leaflets off-center with the wider part of the blade toward the leaf tip. Leaflets emerge very late in spring and are yellow-green. Fall color is clear yellow, unless the tree has been troubled with insects or leaf blight. Flowers inconspicuous, in elongate, green clusters. Fruit 1 1/2 to 2 1/4 inches in diameter, consisting of a hard-shelled, furrowed nut enclosed in a green husk, darker when ripe.

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Lighting

Full Sun

Hardiness zone

4a - 9b

Water
Watering walnut trees these trees tend to need a lot of water during their life cycles. observe the following guidelines: during dry periods, your tree should receive a thorough soaking at least once a week.
Sunlight
Medium light/Partly shaded – This is where the plant gets some morning sun or some afternoon sun. Morning sun is less intense than afternoon sun, so putting your plants a few meters in from an East facing window works for maximum sun while reducing the risk of burning.
Fertilizer
Simply apply the fertilizer around the base of the plant, extending to the drip line. For vegetables, place the fertilizer in a strip parallel to the planting row. Water-soluble fertilizers are faster acting but must be applied more frequently. This method gives plants food while you water.

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Soil
Requires a well-drained, loose mixture of potting soil.
Pruning
It is important to never remove more than a third of the foliage in any one year and to cut just above a node on the stem.
Temperature
It is hardy to zone (UK) 4 and is not frost tender.
Container
Choose a pot with drainage holes, which also ensures potting soil doesn't stay too wet after watering your houseplants. The excess can freely escape out the bottom of the container, allowing oxygen to make its way to plant roots.
Additional
The plant has occasionally been known to cause contact dermatitis in humans
Popularity
713 people already have this plant 241 people have added this plant to their wishlists