DeGroot's Spire Arborvitae, scientifically known as Thuja occidentalis 'Degroot's Spire', is a narrow, columnar cultivar of the Eastern Arborvitae. Here are some key features of DeGroot's Spire Arborvitae:

1. Appearance: DeGroot's Spire Arborvitae has a tall, narrow, and columnar growth habit, making it an excellent choice for vertical accents in the landscape. It typically grows to a height of about 10 to 12 feet and spreads 3 to 4 feet wide. The foliage consists of scale-like, dark green leaves that maintain their color year-round.

2. Hardiness: DeGroot's Spire Arborvitae is hardy in USDA zones 3-7, making it suitable for a wide range of climates. It is tolerant of cold temperatures and adapts well to various soil types, including clay and sandy soils.

3. Sunlight: This evergreen shrub thrives in full sun to partial shade. While it can tolerate some shade, it will develop the best form and density in full sun.

4. Landscape Use: DeGroot's Spire Arborvitae is commonly used as a vertical accent or specimen plant in landscapes. It works well as a focal point in narrow spaces, along property lines, or in foundation plantings. It can also be planted in rows to create privacy screens or windbreaks.

5. Maintenance: DeGroot's Spire Arborvitae is relatively low-maintenance. It benefits from regular watering during the first growing season to establish a strong root system. Once established, it is drought-tolerant and requires minimal watering. Pruning is generally not necessary unless you want to maintain a specific size or shape. If needed, prune in late winter or early spring before new growth emerges.

Overall, DeGroot's Spire Arborvitae is prized for its narrow, columnar form, evergreen foliage, and versatility in the landscape, making it a popular choice for homeowners and landscapers alike.