The Complete Guide to Growing and Caring for Emerald Green Arborvitae
Arborvitae trees are a fantastic addition to any garden or landscape. With their evergreen foliage, easy care, and versatility, they are perfect for creating privacy, accent trees, or hedges. ‘Emerald Green’ arborvitae, in particular, is a popular cultivar known for its fast growth and year-round visual interest. In this comprehensive guide, we will delve into everything you need to know about growing and caring for these beautiful trees.
Understanding Arborvitae
Before we dive into the specifics of caring for ‘Emerald Green’ arborvitae, let’s take a step back and understand the broader category of arborvitae trees. Arborvitae belongs to the Thuja genus and are part of the cypress family. There are two main types of arborvitae:
- Thuja occidentalis: Also known as eastern arborvitae, these trees are native to the eastern U.S. They are the most common type of arborvitae but are susceptible to deer browsing.
- Thuja plicata: Western arborvitae, native to the western U.S., are larger and grow more quickly. They are deer resistant but not as cold-hardy as their eastern counterparts.
The Beauty of Emerald Green Arborvitae
Emerald Green’ arborvitae, also known as ‘Smaragd’, is a cultivar that boasts vibrant, glossy green needles in flat sprays. Here are some key characteristics and care tips for this remarkable tree:
Planting requirements
- Light: Emerald Green arborvitae thrives in full sun or partial shade. Ensure they get at least six hours of sunlight daily to promote healthy growth.
- Soil: Plant these trees in moist, well-drained soil with a neutral to alkaline pH. Avoid waterlogged conditions by applying a layer of compost or mulch over the root zone.
- Water: Newly planted arborvitae require watering twice weekly for the first few months, then weekly watering for the next year. Established trees need about half an inch of water weekly.
Care tips
- Temperature and Humidity: These trees prefer cooler, dryer climates and are susceptible to fungal diseases in humid conditions. Space them at least 3 to 4 feet apart for better air circulation.
- Fertilizer: While arborvitae usually do not need fertilizer, if growth is sparse, apply a balanced fertilizer following the product instructions.
Planting and Pruning Emerald Green Arborvitae
Planting tips
- When to Plant: Fall is the ideal time to plant Emerald Green arborvitae to avoid heat stress and allow roots to establish before winter.
- Where to Plant: Choose a location with moderately moist, well-drained soil and full sun to partial shade. Prepare the site by clearing weeds, rocks, and debris.
Pruning guidelines
- Light pruning in early spring helps maintain the shrub’s neat appearance and encourages denser growth. Remove dead or diseased branches and shape the tree to your desired form, such as spiral topiaries.
Overwintering and Common Issues
- Winter Care: Protect young arborvitae from snow and ice damage by mulching around the base and tying stems with twine. Burlap wraps can also deter deer in colder climates.
- Common Pests and Diseases: Keep an eye out for bagworms, spider mites, and fungal diseases like needle blight. Prune affected branches and treat with fungicide as needed.
Emerald Green arborvitae is generally low maintenance, but here are a few common problems to watch out for:
- Browning Leaves in Winter: Ensure consistent watering in winter to prevent browning due to sudden temperature changes or drought.
- Dropping Needles: Regularly clean out fallen needles from the interior of the tree to prevent rot and maintain tree health.
- Loss of Foliage From Top Down: Bagworms can defoliate arborvitae, starting at the top and working their way down. Remove egg bags and consider neem oil for organic control.
In conclusion, Emerald Green arborvitae is a stunning and versatile tree that can elevate any landscape. By following the tips and guidelines outlined in this comprehensive guide, you can ensure your arborvitae thrives and remains a beautiful focal point in your outdoor space. Remember to monitor for pests and diseases, provide proper care, and enjoy the year-round beauty of these wonderful trees.
