Plant in spring or early fall to give plants the best start.
Choose a location that will allow roots to spread and branches to grow freely. Space plants far enough from building foundations, walls, and decks so that the growing foliage won’t crowd the structure. Consider whether tall trees or shrubs will block windows or interfere with the roof or power lines.
To prepare the planting area dig a hole as deep as the root ball and three times as wide. After removing the soil, mix it with some compost or peat moss. This enriches the soil and loosens the existing dirt so that new roots can spread easily.
To remove the plant from the container, gently brace the base of the plant, tip it sideways and tap the outside of the pot to loosen. Rotate the container and continue to tap, loosening the soil until the plant pulls smoothly from the pot. The container can also be removed by carefully cutting it down the side.
Set the plant in the hole. If the root ball is wrapped in burlap fabric this must now be removed along with any string or wire securing the burlap. If roots are tightly packed gently rake them apart with your fingers.
Return the soil to the planting area packing it firmly around the root ball. Fill the hole until the soil line is just at the base of the plant, where the roots begin to flare out from the main stem.
Water the plant well then add a 2” (5cm) layer of mulch, such as shredded bark, around the planting area. Keep the mulch at least 4” (10cm) away from the trunk of the plant as this can keep the bark too moist and cause it to decay.
Please help me out. I have black walnuts on my property and where I plan on planning the blue Nootka scrub it is about 10 to 12 feet away from a black walnut. Will these bushes be OK to plant and that area please let me know about planning near Black Walnut. Thanks for your time. Appreciate it.
Hi Terry,
This is a toughie!
In researching this question, we found there are some valid references, along with conflicting findings on what can or cannot be grown under or near a Black Walnut.
Pennsylvania State University provides an extensive list of plants that can survive beneath a walnut tree. This article does not mention Blue Nootka Cypress ‘Glauca’ (Chamaecyparis nootkatensis), however it does list a few evergreens that are tolerant of the chemical juglone, so perhaps one of these plants should be considered instead of the Blue Nootka Cypress:
Eastern Red Cedar (Juniperus virginiana)
Virginia Pine (Pinus virginiana)
Arborvitae (Thuja occidentalis)
Eastern Hemlock (Tsuga canadensis)
Additionally, Morton Arboretum states that these evergreens are considered tolerant of Black Walnut toxicity:
Chinese Juniper (Juniperus chinensis)
Common Juniper (Juniperus communis)
Check here for suggestions on more plants and site preparation from Pennsylvania State University for successful planning and planting around your Black Walnut.