Tag Archive for: trees

Native Trees to Plant this Fall

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Fall is here, and now is the best time of year to plant trees. This year, we are celebrating our native trees, which not only offer beautiful fall foliage, but also provide a variety of fruits and seeds at this time of year that are an excellent source of nutrition for our local birds and wildlife. If you are interested in supporting our environment, planting a native tree is a great way to do so.

Here are some of our favorites that you can plant to support your local wildlife and ecology.

Oaks

Quercus alba (White Oak), Q. bicolor (Swamp White Oak), Q. coccinea (Scarlet Oak), Q. macrocarpa (Bur Oak), Q. palustris (Pin Oak), Q. phellos (Willow Oak), Q. rubra (Northern Red Oak)

These natives are a staple of our local environment, with a massive canopy and root system, they produce a lot of oxygen and sequester a lot of carbon. Oaks support over 500 species of moths and butterflies, in addition to the mammals and birds that eat buds, pollen, acorns, and insects that live in the tree. With many types of oaks available, there is an oak to fit any environment, no matter your local conditions.

Blackgum Fall Foliage

Blackgum

Nyssa sylvatica

These durable trees can flourish in tough environments. We have one growing in the back parking lot at our Fair Oaks location that has thrived even in the heavily trafficked area where it is planted. While we can appreciate the attractive fall foliage, the birds and insects will flock to the tree for its flowers and later, its fruits.

Eastern Red Cedar

Juniperus virginiana

These drought-tolerant evergreens serve as a wonderful resource for birds, providing food and winter shelter to cedar waxwings and a wide variety of other local birds. What we commonly refer to as juniper berries are actually small female cones. Male trees develop a gold tint as their cones form at the ends of the tree branches. Many of our local wildlife species winter in stands of eastern red cedars in our region. Ornamentally, these make excellent screening plants. Shrub form and columnar forms are available in cultivated forms.

River Birch

Betula nigra

These relatively fast-growing trees can thrive in poor soils, wet soils and a variety of and even dry or compact soils. We know them best for their signature exfoliating bark. When in bloom, these trees attract a wide variety of insects and birds to feed before the leaves develop. Their fall foliage is yellow. Look for them locally in Great Falls Park.

Serviceberry

Amelanchier laevis

This small tree, also known as the Juneberry, is a vital species that provides an early source for nectar for bees when the weather is still warming up. The fruits arrive in June, and taste like blueberries – if you can get them before the birds do. Birds will flock to the fruits. In the fall, we can enjoy the bright foliage.

Maples

Acer rubrum (Red Maple) and Acer saccharum (Sugar Maple)

Maples are well known for their beautiful fall color, but they also produce blooms which are highly important for local wildlife in the spring. Red maples produce red flowers, and sugar maple flowers come in a yellow color. Once the flowers are done, local wildlife will come for the samaras, which are high protein, high fat seeds.

Sweetbay Magnolia, Tree, Native

Sweetbay Magnolia

Magnolia virginiana

This native is a great choice if you are dealing with poor quality soil or drainage issues. You will find them locally along woodland creek banks. Fragrant white blooms attract pollinators, and their red seeds attract wildlife as well. Since these plants are semi-evergreen, in a normal or mild winter they will retain 60-70% of their foliage, so you can use them as a native screening plant if you want something in the 10-15 ft. range that needs to handle poor soils.

American Beech Fall Foliage

Fantastic Fall Foliage: Native Trees

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Louis Ratchford, Merrifield Plant Specialist

This post was originally published in September of 2017

Fall is my favorite season of the year. The changing weather transforms trees and shrubs  from bright green into a vibrant combination of orange, red and yellow. As this beautiful scene of color works its way across the landscape of our region, many customers come in wanting to know how they can enjoy beautiful fall foliage at home. One of the best ways to add fall color is by planting native trees. Each of the ones below has its own set of unique characteristics.

American Beech

One of my all-time favorite trees. American beech creates a stunning display each fall with its whitewashed bark and dark yellow foliage. Its foliage fades to a papery light brown or creamy white at the end of the season and remains on the tree through the winter, rustling in the wind and providing visual interest in the garden against the bare branches of other plants. Beech nuts are also a good source of food for animals during the winter.

Blackgum Fall Foliage

Blackgum

The vivid contrast between blackgum’s dark bark (almost black when wet) and vivid red or orange fall foliage creates a jaw-dropping fall display. This slow growing over story tree can reach 70 feet and is very strong. One of my favorite trees at our Fair Oaks location is an enormous blackgum that is surrounded by our parking lot. We literally drive directly over its root system every day and it’s still thriving!

Sassafras Fall Foliage

Sassafras

Sassafras is most notable for its display of orange, green, yellow and red foliage all on the same tree. As the foliage changes color, these trees may look like an artist threw several colors of paint over their leaves.  They are also well known for their fragrance. A fun fact about this tree: it is used in making root beer!

Silky Dogwood

Red on one side and white on the other, the foliage of silky dogwood creates a display of flickering colors as it moves in the fall breeze. After its foliage fades, the vibrant red color of new stems and branches provides winter interest. Older bark turns grey, but you can trim your dogwood back each season to keep the new growth coming, as it will grow very quickly.

Sourwood Fall Foliage

Sourwood

As fall arrives sourwood’s foliage turns yellow, then orange, and finally brilliant red. This is an excellent tree to pair with evergreens as the red foliage contrasts the deep green of evergreen to enhance the color of both plants. A two-season tree, sourwood also produces fragrant flowers in spring when it leafs out. Maxing out around 20 feet high, sourwood is a good choice for anyone looking for a large impact in a limited space.

Sugar Maple

A classic fall foliage tree, you can’t go wrong with sugar maple in your landscape. With a nice rounded look and a maximum height of 60 to 80 feet, the yellow, dark green and orange fall foliage make this tree a stunning addition to any landscape. It typically takes on a more orange color than its other maple relatives, so if you love orange foliage, this is good choice!

Source: Fine Gardening

Winterthur Viburnum

The most remarkable aspect of Winterthur viburnum is its berries, which come in a light pink and fade to dark pink and later blue as they mature. When most of the berries are blue, the foliage also transitions to vibrant red, creating a stunning contrast between the plants’ foliage and fruits. In the spring, this viburnum blooms with white clusters of flowers as it leafs out. I recommend pairing it with grasses and evergreen for a beautiful combination of texture and contrasting green color in fall.

Evergreens

Great Trees and Shrubs for Screening

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Originally Published July, 2015

Trees

American Arborvitae

‘Emerald’, which matures to about 15’ tall and 4’ wide; ‘Nigra’, 15’ x 5’; and ‘Pyramidal’, 20’ x 8’ are three of our most popular varieties. Great for our Washington, D.C., metropolitan area, these varieties display dense, dark green foliage that is soft textured. They maintain good winter color.

Cryptomeria

As a young tree, cryptomeria has a very dense, full growth that begins to open up into a more irregular, graceful form with age. It matures to a height of 50’ – 60’ and a spread of 20’ – 40’. An elegant tree with attractive red bark, cryptomeria can be used as a specimen or to create privacy. Cryptomeria should be planted in full sun. Growing 30’ – 40’ tall, ‘Yoshino’ is the most popular type.

Eastern Red Cedar

Native to the mid-Atlantic region, Eastern red cedar is a narrow, evergreen tree that can mature to 25’ to 35’ tall. The dense and pyramidal form becomes slightly pendulous with age. Male plants have gold cones and female plants have blue cones that birds love. The two paired together are quite attractive in the landscape.

Foster’s Holly

Some homeowners are smitten with Foster hollies, which feature small, fine-textured leaves and narrow, upright growth. Their dense growth, dark green foliage and bright red berries make them an excellent choice for privacy screens. They mature to a height of 20’ – 30’, but with routine pruning they can be easily kept to a height of 12’ – 15’.

Giant (Western) Arborvitae

Native to the Pacific Northwest, this is often sold as ‘Green Giant’. Because of its fast rate of growth and soft-textured foliage, the variety ‘Green Giant’ is often promoted as an alternative to Leyland cypress. ‘Green Giant’ will grow 30’ – 40’ tall with a spread of 10’ – 12’. This tree has better resistance to deer than other arborvitaes or Leyland cypress.

Leyland Cypress

A hybrid tree that originated in Wales in 1888, Leyland cypress has exploded in popularity over the past 30 years. This tree grows very rapidly, and is capable of growing 3’ a year or more until reaching maturity at 25’ – 35’ tall and 10’ wide. It requires full sunlight and appreciates a bit of protection from harsh winter winds. Moist, well-drained soil conditions are ideal, although this tree will adapt to heavy clay.

Nellie R. Stevens

A very popular, vigorous, hybrid holly that grows into a broad pyramidal form. It can mature to 25’ tall, but like all hollies it responds well to pruning and can be cut back in early spring if necessary. The berries are prolific with an orange-red color. Nellie Stevens withstands harsh, exposed environments better than other hollies.

Skip Laurel

This is a widely planted, versatile shrub that is suitable for many different situations. It will grow in full sun or full shade, preferring something in between. The white flowers appear in late April or May, and are attractive, but considered secondary to the glossy, dark-green leaves. Skip laurel will grow 8’ or more tall and 4’ – 6’ wide, but can easily be shaped by occasional pruning.

Southern Magnolia

Prized for its glossy green leaves and fragrant white flowers, this is a great specimen tree that can also be used for screening. ‘Little Gem’ is a compact variety that grows to 20’ or more tall and about 8’ wide. Planting them in a location protected from harsh winter winds is best.

Shrubs

Chindo Viburnum

Similar to Southern Magnolia, chindo viburnum features leather-like, shiny green leaves. This evergreen shrub makes a good hedge because it is very dense with a pyramidal form. New growth often has a red hue.

Leatherleaf Viburnum

One of the few evergreen viburnums that can be grown in our area, leatherleaf viburnum features deeply wrinkled, tough textured leaves that are very interesting. The white flowers are attractive and the berries are bright red. Planting viburnum in groups will improve berry production.

Red Tip Photinia

This popular shrub boasts bright red growth that lasts a few weeks before maturing to green. Small white flowers appear in the spring and are followed by red berries. It grows to a height of 10 to 15 feet tall and 5 to 8 feet wide. Plant in full sun to partial shade with good air circulation.

Waxleaf Privet

Waxleaf privet makes an excellent screening plant. Although it matures to a height of 12 to 15 feet, it can tolerate severe pruning. This shrub has a profusion of white blooms, black berries and glossy, green foliage.

Keeping Your Plants Hydrated and Happy This Summer

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David Yost, Merrifield Plant Specialist

Summer is here! For many of us it’s time to kick back, relax and enjoy time with our families and friends. Whether you’re staying in town this summer or taking a trip, remember that your plants will need some extra care to keep them happy and well hydrated in the summer heat. We’ve got some refresher tips for you just in time for the hottest season of the year! Check out our full watering guide for year-round information.

Check Soil Before Watering

Even in the summer heat this golden rule of watering applies. This season, check your larger plants for moisture every 3 to 5 days and your smaller plants every 2 to 3 days. You’ll likely need to check your containers daily.

To test the soil, dig down into the root ball using a hand shovel to a depth of 4” to 5” and feel the soil for moisture. If the soil is moist, replace the soil and check again later. Moist soil will feel somewhat like a damp sponge. If the soil is dry, water the plant and surrounding soil thoroughly. Until the plants are well established—typically one year after planting—you will need to water more frequently and follow this process of checking the soil before watering.

Water Deeply

We recommend using a watering wand as it directs water most effectively over the roots and surrounding soil. Watering deeply encourages the plants root systems to grow down into the soil, reaching for the deeper water. And plants with deep root systems withstand drought better, making it easier on your long-term watering needs. Sprinklers, gator bags, and soaker hoses can also be effective when used properly.

Make a Watering Plan

Once you get a feel for how quickly the soil dries around your plants, you can make a plan and check them on a regular basis. Be aware that you will still need to monitor weather conditions and adjust accordingly. The best time to water is in the morning as this gives plants the opportunity to become fully hydrated before the mid-day heat arrives. Water remaining on the foliage will also dry quickly in the morning sun, reducing the spread of disease. So, mark your calendar and get outside to give your plants some refreshment before the mid-day heat arrives.

Make Plans with Your Neighbors Before Vacation

Excited to finally take that vacation you started planning last summer? Enjoy! Just remember to set up a plan with a neighbor or friend to water your plants while you are gone. Provide your phone number in case they have any questions.

Tag Archive for: trees