American Evergreen: Think Outside the Boxwood!

Evergreen landscape plants provide winter interest and year-round structure. Or, at least they should. But way too often, they totally fail at that function.

In general, suburban landscapes use too few species of evergreens, and often the wrong evergreens in unattractive ways. The same non-native shrubs — boxwood, taxus, privet, Asian azaleas and junipers – are repeated house-after-house, often clipped into shapes too strange to be natural and too tight to provide shelter for birds. Whether it is a failure on the part of developers and builders, or the nursery and landscape industry, or homeowners themselves, the result is dull, repetitious, and sterile landscapes. The over-use of non-native shrubs also sadly results in a lack of food and shelter for birds, insects, and other animals, all of whom depend on native plants.

But it is an easy fix! There are so many great native evergreens.

The last four blog posts in this series on American Evergreens featured Eastern Red-cedar, American junipers, Eastern White Pine, and American Rhododendrons, all excellent plants for suburban landscapes. But there are more! Browse through the posts linked below for more photos and information about each of these evergreen options:

American Holly (Ilex opaca) is a magnificent tree that grows slowly, eventually reaching 40 feet tall. It provides a dramatic evergreen backdrop for flowering shrubs and is a dense, year-round privacy screen. Its foliage provides essential shelter and its berries are prime food for birds. Be sure to plant a smaller male holly in the area to assure a good show of berries all winter. Click here for more information.

American Holly in fall and winter landscape

Inkberry (Ilex glabra) is a great substitute for boxwood. It looks very much the same, but is better adapted to our climate and soil conditions in the Northeast, so it does not have to be coddled in burlap all winter to protect it from ice and salt. Cultivars like ‘Shamrock’ and ‘Compacta’ are slow-growing, smaller than the species, and suitable for smaller properties or as foundation plants. Inkberry may be pruned as easily as boxwood and used for hedges. Older shrubs can get leggy with age, so underplanting Inkberry with smaller shrubs or perennials is a great idea. For more information and photos, click here.

Inkberry, here in its natural shape, doesn’t need winter protection

Alberta Spruce (Picea glauca), a majestic large tree in the wild, is more commonly seen as a dwarf cultivar ‘Conica’ that is very slow growing and attractive as an evergreen foundation plant, or even in a patio container. It is Christmas-tree-shaped and can provide a formal, vertical element in the garden. More info here.

Alberta Spruce, in front of Inkberry, provides a backdrop for bright Crabapple fruit in winter

Globe Arborvitae (Thuja occidentalis) is an alternative to tightly-clipped boxwoods for homeowners who prefer that spherical look. Rather than watering and fertilizing non-native shrubs only to shear off the new growth every year, naturally globe-shaped cultivars of our native Arborvitae are a better idea. Cultivars named ‘Hetz Midget,’ ‘Tater Tot, ‘Little Giant,’ and ‘Golden Globe’ require no fuss to hold their shape, and may provide better ecological resources than boxwood topiaries. More info here.

Globe Arborvitae at 5 years, never pruned, with natural-form Inkberries in the background
Thuja occidentalis ‘Hetz Midget,’ summer and winter, doesn’t need pruning or wrapping

Leucothoe (Leucothoe fontanesiana or L. axillaris), sometimes called “Doghobble,” is a fabulous understory shrub that should be used much more often. As a substitute for invasive pachysandra or ivy in a shady wooded area, it is without equal. It is low-growing, maxing out at 2 to 3 feet tall and spreading out gradually 3 to 4 feet wide. It is beautiful, foolproof, very deer resistant, and reliably evergreen. Plant it under trees, along fences, and in shady parts of your yard where deer are usually a problem. For a full description and more photos, click here.

Leucothoe and Rhododendron in a woodland garden

With all of these choices, suburban gardeners can add so much diversity to their yards! Native shrubs enrich the environment while adding beauty and variety to the landscape.

So, don’t stick with the same-old, same-old that you see around the neighborhood! This spring, plant more shrubs! Expand your tree and shrub plantings out into your yard, and update your foundation plantings with native shrubs.

Make next winter more interesting. Try American Evergreens!

THIS BLOG IS WRITTEN BY CATHY LUDDEN, CONSERVATIONIST AND NATIVE PLANT EDUCATOR; AND BOARD MEMBER, NATURE CENTER at greenburgh. FOLLOW CATHY ON INSTAGRAM FOR MORE PHOTOS AND GARDENING TIPS @CATHYLUDDEN.

Holiday Decorating: Retro Style!

There was a time when the halls were decked with boughs of holly! Merry-makers strung their trees with popcorn and cranberries, and yule logs made of real wood warmed the hearth. As we try to reduce our use of plastic in daily life, it can be fun and satisfying to use natural materials in holiday decorations.

And, if you have a yard heavily planted with native plants, you’ll have plenty of ornamental material to choose from! The same plants that provide winter interest in our residential landscapes can add touches of natural beauty to holiday mantles, tables, vases, wreaths, and trees.

Three great native shrubs have been featured here with photos and information about their landscape use: American Holly, Winterberry, and Red Twig Dogwood (also called Red Osier Dogwood). All three also make great, long-lasting holiday decorations, and they don’t mind being pruned a bit for that purpose.

American Holly
American Holly (Ilex opaca) is a classic!
Winterberry
No need to buy plastic berries if you have a Winterberry (Ilex verticillata) in your yard
Red Osier Dogwood
Red Osier Dogwood (Cornus sericea) benefits from a little pruning for holiday decorations.

The bright red accents from these shrubs combine beautifully with evergreen foliage for holiday color schemes.

Red Osier Dogwood
Red Osier Dogwood and Winterberry contrast with Christmas Fern, a native evergreen, at Longwood Gardens in Kennett Square, PA

Horticulturists have been developing beautiful cultivars of Red Osier Dogwood that look great both in the landscape and in winter decorations. A cultivar called ‘Arctic Fire’ is a compact version that stays about 3 to 5 feet tall and has brilliant red stems. As strange as it seems, there are even yellow versions of Red Osier Dogwood! Yellow and golden cultivars bring winter interest to the landscape and a surprising burst of color to holiday decorations.

Golden Cultivar
A golden cultivar
Indoor display at Longwood Gardens

Crabapples, Chokeberries, White Pine, and even Southern Magnolia are all American native plants that bring retro style to holiday arrangements. Try combining them with birch branches, dried flower stalks, twigs, pine cones, nuts, and other “found objects” from your yard. The cones of the White Pine don’t even need artificial snow — they come naturally “flocked” in their own pine sap!

Crabapples
Crab apples in December
Natural White Pine Cones
Natural White Pine cones arranged on a native Alberta Spruce
Fireplace decoration by the Garden Club of Irvington for the Greenburg Nature Center combines native plants, a bird’s nest and wasp nest found on the grounds, and an invasive vine removed years ago from the forest

Charming ornaments for your tree or centerpieces also can be made from natural elements found in the garden.

But don’t scavenge in protected areas for these ornamental plants. Parks and wooded areas need all of these treasures to provide food and habitat for birds, insects, and other animals. It’s much better to plant your own property with native plants to add beauty year-round. And if you leave native perennials standing at the end of the season, the dried flower stalks not only provide food for winter birds but also make great additions to your seasonal decorations!

So, take a pass on the latest plastic holiday décor and, instead, look around your yard! If you have lots of native plants, and leave your flower beds untrimmed, all you need is a little creativity to deck your halls as in days of yore.

One last thing: do leave some of those beautiful berries for the birds. They love the natural decorations on the outside of your house!

Winterberry
Winterberry feast!
Photo: Kristina Zagreda

THIS BLOG IS AUTHORED WEEKLY BY CATHY LUDDEN, CONSERVATIONIST AND NATIVE PLANT EDUCATOR; AND BOARD MEMBER, GREENBURGH NATURE CENTER. FOLLOW CATHY ON INSTAGRAM FOR MORE PHOTOS AND GARDENING TIPS @CATHYLUDDEN.