Thuja occidentalis 'Nigra' (Dark Green Arborvitae) grown in 7-gallon pots.
Close-up of dark green Thuja occidentalis 'Nigra' foliage.

Thuja occidentalis 'Nigra' (Dark Green Arborvitae) Unity Grown

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Thuja occidentalis 'Nigra' is a cultivar of arborvitae that is well suited for use in the home garden due to its dark green, evergreen foliage and its medium to large height of 15-18'; a larger spread of 8-10' feet wide makes this Thuja a great choice for well-spaced background hedge and border plantings, but dense foliage also makes 'Nigra' an excellent specimen tree, retaining its color better during the winter months than other Thuja varieties.

Dark green aborvitae prefers full to part sun, and average soil type and moisture, but can tolerate heat, cold, and some drought once established. Although it does not flower, Thuja occidentalis 'Nigra' attracts small birds and wildlife by offering cover and shelter; Thuja also acts as a host plant for bagworm moths.

Native to Maryland and Native to U.S.
Mature Tree Height: Medium: 15 to 30 feet
Evergreen
Sun (6+ hours) and Part Shade/Sun (4-6 hours of sun)
Soil Moisture: Medium and Well-drained
Soil Type: Wide Tolerance and Average
Bloom Time:
Flower Color:
Foliage Color: Green
Features: Attracts Birds, Attracts Wildlife, Fall Color, Fragrant, and Winter Interest
Tolerances: Black Walnut Tolerant, Clay Soil Tolerant, Cold Tolerant, and Drought Tolerant
Garden Type: Meadow, Small Space, and Specimen Tree

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