Horticulture

 

Avoiding the Winter Rhodi-Rut

 

As the garden catalogs start to arrive in the mail, like many, I find myself succumbing to dreams of spring blooms and plans for the summer garden.   This is a good time, however, to plan for the winter garden – to pick out the plants to plant this spring and next fall to have a showcase garden next winter.  In Massachusetts, winter is our longest season weather-wise but is often the most overlooked season by gardeners.  In many yards, the winterscape consists of what I call the ‘Rhodi-Rut’: rhododendrons, arborvitae or junipers planted by developers.

 

The winter garden has its own beauty: tree branches glistening after an ice storm, the contrast of a bright red cardinal sitting on an evergreen branch, the starkness of dark bare tree branches against fresh white snow.  Here are some suggestions to plant this spring to get out of next year’s winter rhodi-rut:

 

Winter color can come from branches, foliage, berries, or early blooming plants.  For example, Cornus albaElegantissima’ (Variegated Red Twig Dogwood) and other varieties of Red Twig Dogwood have new shoots that are bright red in the winter.  Hollies have interesting leaves that stay evergreen (particularly Ilex x merservae cultivars, such as ‘Blue Prince’ and ‘Blue Princess’, which were bred to withstand our harsh winters and have a bluish tint to their leaves).  Pieris japonica (Japanese Andromeda) has a rounded shape and is deer resistant.  Dwarf Alberta Spruce provides greenery, and Polystichum acrostichoides (Christmas fern) presents low green fronds throughout the winter.

 

Wintergreen

 

Plants with berries that last through the winter present a bright spot in your garden.  Two such plants are Gaultheria procumbens (Wintergreen), a low grower with berries that persist through winter, and Ilex veritcillata and other Winterberry cultivars, which are short or tall shrubs with bright red berries.

 

Witch Hazel

 

Some plants bloom in late winter.  Varieties of Hamamelis (Witch Hazel) can bloom as early as December or as late as February; blooming in temperatures as low as the high 20s on successive sunny days.  Bring cut Witch Hazel branches indoors in February to brighten your house.  Helleborus varieties (Hellebores) fit both the bloom and foliage categories:  they will hold their foliage if planted in a protected area, and bloom in late winter and early spring.

 

Plants with interesting branch structure add interest to the winterscape.  Some examples of these are Pinus sylvestris (Scotch Pine), or Corylus avellanaContorta’ (Harry Lauder’s Walking Stick).  These look particularly interesting when the branches are covered with snow.

 

Ornamental grasses provide interesting form to the winter garden.  Some to consider are Calamagrostis varieties, such as acutiflora (Feather Reed Grass), with tall plumes that stand through winter, Panicum virgatum ‘Cloud Nine’ (Switch Grass), with gold stems that last all winter, and Miscanthus sinensisVariegatus’  (Varigated Madengrass), a  large grass with panicles that persist through winter.

 

 

Sedum autumn joy

 

Other plants that provide structural interest in winter include Sedum ‘Autumn Joy’, and perennials with large seed heads such as Rudbeckia (Black Eyed Susan) varieties and Echinacea (Coneflowers).  Juniperus conferta ‘Blue Pacific’ can provide a low evergreen mat, or visual interest trailing over a wall.

 

Paperbark maple

 

Trees and shrubs such as Acer griseum (Paperbark Maple), Betula nigra (River Birch), or  Hydrangea quercifolia (Oakleaf Hydrangea) have peeling bark that adds textural interest to the winterscape.

 

Finally, don’t forget that architectural elements can add visual contrast to a stark winter landscape.  Walls, sculptures, trellises, birdhouses, and winter-proof planters can be enjoyed in winter as well as the other seasons.

 

Sources: Pelczar, Rita, and Cole, Trevor. American Horticultural Society Northeast SmartGarden Regional Guide, New York, c. 2003, DK Publishing, Inc.

Stocker, Carol. The Boston Globe Illustrated New England Gardening Almanac, Chicago, c. 2006, Triumph Books.

Wehr, Leslie J. “Wake up the Winter Garden”, Taunton’s Fine Gardening, February 2005, No. 101, pp.55-59.

Walliser, Jessica.  “Native Beauty”,  Organic Gardening, Feb-Mar 2008, p.59.