Simply Trees

Emerald Colonnade® Holly

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Twice a monthFull sunDeer resistantSpring
  • Year-Round Foliage: Retains its lush, green leaves throughout all seasons.
  • Privacy Screen Potential: Dense growth habit makes it excellent for hedges or privacy screens.
  • Bird-Friendly: Produces small, inconspicuous flowers that attract birds but are rarely noticeable, keeping the focus on its vibrant foliage.
  • Male Evergreen Shrub: Does not produce berries.

More Details

Emerald Colonnade® Holly, scientifically known as Ilex x 'RutHol1', is a stunning evergreen shrub that adds year-round visual interest to your garden. Known for its vibrant green leaves and its ability to form natural privacy screens, this holly variety is a must-have for those looking to add a touch of timeless elegance to their outdoor space. With low-maintenance requirements and adaptability to various growing conditions, the Emerald Colonnade® Holly is an ideal choice for gardeners at all levels of experience.

Growth rate: Moderate growth rate; reaches a mature height of 12 feet and width of 8 feet in natural form.

Please note: Images on our website depict plants and trees at full maturity to showcase their expected grown characteristics. These images are illustrative examples only and do not represent the size of plants or trees upon delivery.

Pruning: To maintain its shape, prune the Emerald Colonnade® Holly in late winter or early spring before new growth begins. Pruning is generally minimal and is mostly used to remove dead or damaged branches.

Fertilization: Fertilize in early spring with a balanced, slow-release fertilizer to promote healthy growth and vibrant foliage. Avoid fertilizing in late fall as this can encourage new growth that may not survive winter.

Winter Protection: Although quite hardy, it's advisable to mulch around the base of the plant before the first frost to provide extra winter protection. This keeps the root system insulated and helps retain soil moisture.

For best results, plant Emerald Colonnade® Holly in well-drained soil rich in organic matter. Dig a hole twice as wide as the root ball but no deeper. Place the plant in the hole, ensuring the top of the root ball is level with the soil surface. Fill the hole with soil and firm it around the root ball. Water thoroughly to settle the soil. Add a layer of mulch around the base to retain moisture and regulate soil temperature. Make sure the mulch doesn’t touch the trunk to avoid rot. With these steps, your Emerald Colonnade® Holly should be well on its way to becoming a garden centerpiece.

Emerald Colonnade® Holly is relatively low-maintenance when it comes to its watering and sunlight needs. It thrives in full sun and requires watering once a week, although more frequent hydration may be necessary during hot, dry periods. Its moderate water and sunlight requirements make it a hassle-free addition to any garden.

We process and ship your order as quickly as possible, typically within 1-3 business days. You will receive a shipping confirmation with tracking information once your item(s) ship.

We have perfected packaging and shipping plants & trees! That is why we DO NOT use any third-party fulfillment like most other online retailers. Your trees go straight from our farm to your door, safely packaged by our team of seasoned professionals. Our process ensures your plants leave our facility and arrive to your door in the best condition possible!

In cases of extreme cold or hot weather, we may temporarily delay shipping to ensure the well-being of your plants. Our primary focus is on delivering healthy and thriving plants to you. Rest assured, we'll make every effort to notify you of any delays promptly.

Please allow additional ship times during inclement weather and sale periods. We do not process or ship orders on the weekend or U.S. Holidays. Simply Trees is not responsible for delays due to carriers, local disruptions, or weather.

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At Simply Trees, we're committed to your satisfaction. If your plants arrive considerably damaged or sustained damage beyond the point of recovery, please contact us within five days at with clear photos for assistance. Our 30-day guarantee covers issues after planting, subject to our terms and conditions. We can't cover plants in the wrong climate or with inadequate care, but we're here to help in other situations. For a detailed understanding of our 30-day guarantee and how we ensure a fair process, click here to learn more.


Zones 7-9

The Emerald Colonnade® Holly thrives in USDA zones 7-9, making it a versatile choice for a wide range of climates. In colder zones, it can endure frost, while in warmer areas, it's tolerant of heat. Its adaptability to various soil types further broadens its suitability for different regions, ensuring that you can enjoy its lush, year-round foliage almost anywhere.

Frequently Asked Questions

Emerald Colonnade Holly typically reaches a mature size of about 12 feet in height and 8 feet in width. However, it's important to note that the actual size of individual plants can vary depending on factors such as growing conditions, pruning practices, and regional climate.

When planted in ideal conditions with proper care, Emerald Colonnade Hollies tend to develop into upright, columnar bushes with dense foliage. They are often used as tall hedges, screens, or accent plants in landscapes due to their attractive evergreen foliage, compact growth habit, and tolerance of pruning.

To accommodate their mature size and prevent overcrowding, it's essential to space Emerald Colonnade Hollies appropriately when planting and provide adequate room for growth. Regular pruning and maintenance can also help manage the size and shape of the bushes to fit your landscape design preferences.

The growth rate of Emerald Colonnade Holly can vary depending on factors such as climate, soil conditions, and care provided. Generally, this variety of holly is considered to have a moderate growth rate.

In optimal growing conditions, Emerald Colonnade Hollies typically grow about 6 to 12 inches per year. However, growth may be slower in less favorable conditions such as extreme heat, drought, or poor soil quality.

To promote healthy growth and encourage faster establishment, provide Emerald Colonnade Hollies with regular watering, well-drained soil, and adequate sunlight. Fertilizing annually in early spring with a balanced fertilizer can also help support vigorous growth.

While Emerald Colonnade Hollies may not be the fastest-growing plants, their moderate growth rate allows for steady development and establishment, resulting in attractive, well-formed bushes over time. Regular pruning and maintenance can help shape the bushes and maintain their desired size and appearance as they continue to grow.

The best place to plant Emerald Colonnade Holly bushes depends on several factors, including sunlight, soil conditions, and space availability. Here are some considerations to help you choose the ideal planting location:

Sunlight: Emerald Colonnade Hollies prefer full sun to partial shade for optimal growth and foliage color. Choose a planting location that receives at least 4 to 6 hours of direct sunlight per day, especially in cooler climates. In hotter regions, providing afternoon shade can help protect the bushes from intense heat and sunburn.

Soil Drainage: These hollies thrive in well-drained soil with good moisture retention. Avoid planting them in areas with poor drainage or heavy clay soil, as this can lead to waterlogging and root rot. If necessary, amend the soil with organic matter to improve drainage and fertility.

Space: Consider the mature size of Emerald Colonnade Holly bushes (typically 12 feet in height and 8 feet in width) and allow for adequate spacing between plants. Plant them at least 4 to 6 feet apart to prevent overcrowding and allow for proper air circulation and growth.

Protection from Harsh Conditions: Choose a planting location that offers some protection from strong winds and extreme weather conditions. Planting near a natural windbreak, such as a fence or larger shrubs, can help shield the bushes from damage.

Landscaping Use: Emerald Colonnade Hollies are versatile and can be used as a hedge, screen, specimen plant, or foundation planting. Consider your landscaping goals and how the hollies will fit into the overall design of your garden or landscape.

Accessibility: Plant Emerald Colonnade Hollies in a location that is easily accessible for maintenance tasks such as watering, pruning, and fertilizing. Avoid planting them too close to structures or other plants that may obstruct access.

By considering these factors, you can choose the best planting location for Emerald Colonnade Holly bushes in your landscape, ensuring they receive the right conditions to thrive and enhance the beauty of your outdoor space.

When planting Emerald Colonnade Holly bushes, spacing is important to allow for proper growth and development while avoiding overcrowding. The ideal distance between individual plants depends on several factors, including the desired density of the hedge or grouping and the mature size of the hollies.

As a general guideline, Emerald Colonnade Hollies are typically spaced 4 to 6 feet apart when planting in a hedge or grouping. This spacing allows enough room for the bushes to grow and fill in while still maintaining a dense and uniform appearance.

If you prefer a more tightly packed hedge, you can space the hollies closer together, but be mindful that this may require more frequent pruning to prevent overcrowding and maintain good airflow. On the other hand, if you prefer a more open and natural look, you can space the hollies farther apart, but keep in mind that it may take longer for the hedge to fill in.

Before planting, consider the mature width of the Emerald Colonnade Hollies and allow for some additional space between plants to accommodate their growth. Providing adequate spacing also helps prevent competition for nutrients and reduces the risk of disease and pest infestations.

Overall, spacing Emerald Colonnade Holly bushes 4 to 6 feet apart is a good starting point for creating a visually appealing and healthy hedge or grouping in your landscape. Adjust the spacing based on your specific preferences and the growing conditions in your area.

Emerald Colonnade Hollies thrive in climates that offer moderate temperatures and adequate moisture. They are generally well-suited to USDA hardiness zones 5 to 9, which encompass a wide range of climates. However, specific climate preferences may vary slightly depending on local conditions.

In general, Emerald Colonnade Hollies prefer:

Temperate Climates: They perform best in regions with mild to moderate temperatures throughout the year. While they can tolerate some heat and humidity, they may appreciate some protection from intense afternoon sun in hotter climates.

Moisture: These hollies prefer well-drained soil but can tolerate occasional periods of moist or even slightly wet conditions. Adequate moisture is essential for their overall health and vitality, especially during hot and dry periods.

Protection from Harsh Conditions: Providing some shelter from strong winds and extreme weather conditions can help protect Emerald Colonnade Hollies from damage. They may benefit from planting in locations with some natural windbreaks or providing artificial barriers if necessary.

Adaptability: While Emerald Colonnade Hollies have preferred climate conditions, they are relatively adaptable and can thrive in a variety of environments with proper care and maintenance. However, they may require additional attention during periods of extreme heat, cold, or drought.

When selecting a planting location for Emerald Colonnade Hollies, consider the specific climate conditions in your area and choose a site that provides suitable sunlight, moisture, and protection from harsh weather elements. With proper care and attention, these hollies can add beauty and structure to your landscape year-round.

Pruning Emerald Colonnade Holly bushes is generally straightforward and can help maintain their desired shape, size, and overall health. Here are some tips for pruning these holly bushes:

Timing: Prune Emerald Colonnade Hollies in late winter or early spring before new growth begins. This timing allows you to shape the bushes without interfering with their flowering or berry production.

Tools: Use sharp and clean pruning shears or hedge trimmers to make precise cuts. Disinfect your tools before and after pruning to prevent the spread of diseases.

Remove Dead or Diseased Branches: Begin by inspecting the bushes for any dead, damaged, or diseased branches. Prune these out completely, cutting them back to healthy tissue or to the base of the plant if necessary.

Shape and Size: Determine the desired shape and size for your Emerald Colonnade Hollies. You can prune them into a formal hedge, maintain a natural form, or create topiary shapes. Make cuts just above a leaf node or lateral branch to encourage bushier growth.

Thinning: If the bushes are becoming too dense or overcrowded, selectively thin out some of the inner branches to improve air circulation and light penetration. This helps prevent disease and encourages healthy growth throughout the plant.

Height Reduction: If needed, you can also prune the height of Emerald Colonnade Hollies to control their size. Make cuts just above a lateral branch or bud to encourage branching and minimize the appearance of stubs.

Considerations: Avoid pruning Emerald Colonnade Hollies too severely, as this can lead to stress and potential issues with regrowth. Instead, aim for gradual and selective pruning to maintain their natural form and appearance.

Clean Up: Once you have finished pruning, remove any debris or clippings from around the bushes to prevent the spread of diseases and pests.

By following these pruning tips, you can help keep your Emerald Colonnade Holly bushes healthy, attractive, and well-maintained throughout the year.

Yes, Emerald Colonnade Hollies produce berries, which are a characteristic feature of holly plants. These berries typically develop on female plants and are produced following pollination by a nearby male holly plant of a compatible variety. The berries of Emerald Colonnade Hollies are typically small and red, adding ornamental value to the plant especially in the fall and winter months. However, it's important to note that holly berries are toxic if ingested, so caution should be exercised if planting them in areas frequented by children or pets.

Emerald Colonnade Hollies are generally considered to be cold hardy and can tolerate a wide range of temperatures. However, their exact cold tolerance can vary depending on factors such as their maturity, overall health, and environmental conditions.

As a general guideline, Emerald Colonnade Hollies are typically hardy in USDA hardiness zones 5 to 9. This means they can withstand winter temperatures as low as -20 to -10°F (-29 to -23°C) in zone 5, and even lower temperatures in warmer zones.

In colder regions, providing some protection from harsh winter conditions, such as mulching around the base of the plants or situating them in a sheltered location, can help minimize potential damage from extreme cold. Additionally, planting Emerald Colonnade Hollies in well-drained soil and avoiding excessive winter moisture can help improve their cold hardiness.

Brown leaves on Emerald Colonnade Holly can be caused by various factors, including environmental stress, pests, diseases, or cultural issues. Here are some common reasons why the leaves may be turning brown:

Watering Issues: Over- or under-watering can stress holly bushes, leading to browning of the leaves. Ensure that the soil is consistently moist but not waterlogged. Water deeply and infrequently, allowing the soil to dry out slightly between waterings.

Poor Drainage: Holly bushes prefer well-drained soil. If the soil is compacted or poorly draining, it can lead to root rot and browning of the leaves. Improve soil drainage by amending with organic matter and ensuring proper grading to prevent water accumulation around the roots.

Drought Stress: Extended periods of drought can cause holly bushes to become stressed and exhibit symptoms such as browning of leaves. Provide supplemental water during dry periods, especially for newly planted or young bushes.

Sunburn: Excessive sunlight or intense heat can cause sunburn on holly leaves, resulting in browning or scorched patches. Provide afternoon shade in hot climates or protect the bushes with shade cloth during periods of extreme heat.

Pests: Holly bushes can be susceptible to pests such as spider mites, scale insects, or leaf miners, which can cause damage to the foliage and lead to browning. Inspect the leaves closely for signs of pests and treat with appropriate insecticides if necessary.

Diseases: Fungal diseases such as powdery mildew, leaf spot, or Phytophthora root rot can infect holly bushes, causing browning of leaves. Provide proper air circulation, avoid overhead watering, and prune out infected plant parts to prevent the spread of disease.

Nutrient Deficiency: A lack of essential nutrients, particularly iron or magnesium, can cause holly leaves to turn brown. Conduct a soil test to determine nutrient deficiencies and fertilize accordingly with a balanced fertilizer or micronutrient supplements.

Inspect your Emerald Colonnade Holly closely to identify any signs of stress, pests, or diseases, and take appropriate measures to address the underlying issues. Proper cultural care, including watering, fertilizing, and pest management, can help promote healthy foliage and minimize browning of the leaves. If problems persist, consult with a local horticulturist or extension service for further assistance.

When planting holly bushes, it's essential to consider their mature size and growth habits. As a general guideline, holly bushes should be planted at a distance from the house equal to half of their mature width.

For the Emerald Colonnade variety, which typically reaches a mature width of about 8 feet, you would ideally plant them at least 4 feet away from the house. This distance allows adequate space for the holly bushes to grow and develop without interfering with the structure of the house or causing maintenance issues.

Additionally, consider the height of the holly bushes when mature and ensure they will not obstruct windows, doors, or walkways. Providing sufficient spacing between the house and holly bushes also allows for proper air circulation and maintenance access, helping to keep both the plants and the house in good condition over time.

Our Process

We have perfected packaging and shipping plants & trees! That is why we DO NOT use any third-party fulfillment like most other online retailers. Your trees go straight from our farm to your door, safely packaged by our team of seasoned professionals. Our process ensures your plants leave our facility and arrive to your door in the best condition possible!