Moody's Nursery & Garden Center
82 Ferry Road
Saco, ME 04072
ph: 207-284-7233
fax: 207-284-9373
moodysnu
~Winterize Your Yard~
Picture your yard in winter~ crystalline pines, rhododendrons and boxood, frosted with ice or snow. Does the thought make you smile or cringe? Although it may seem too early to think about the coming season, planning ahead in fall can prevent cold weather disaster. Some protective chores, such as watering, mulching, staking and covering, are best done now, before the arrival of the potentially damaging winter. Snow, freezing rain and cold wind can wreak havoc in Northern landscapes, but unexpected ice storms and sudden drops in temperature can kill or weaken plants in the South. To guard against winter chills, follow these easy steps to protect your plantings.
Deep and consistent watering before the onset of cold weather is probably the easiest way to forestall winter injury. Because evergreens keep their "leaves" through winter, they are particularly vulnerable to cold blasts of wind, which evaporate moisture. Both evergreen and deciduous plants benefit from a thorough soaking just before the ground freezes. Remember that plant roots function until the soil temperature reaches 30 degrees- usually several weeks after you feel the nip in the air- so keep your hose handy until then. Pay special attention to container plants kept outdoors year-round. Container soil dries out almost as quickly in winter as summer; water generously during thaws.
Mulching will help retain soil moisture. The mulches I use resmble the litter of fallen leaves, twigs and other natural debris found in woods and meadows. Not only does the material preserve moisture, but it also supplies nutrients, checks erosion, moderates temperature fluctuations and adds a tidy look. For herbaceous perennials, a lightweight mulch of pine boughs or leaves should be applied only after the ground has frozen to ensure that the plant has reached dormancy. The covering prevents heaving caused by alternate thawing and freezing, and protects against subsequent injury to roots. For shrubs and perennials that are mulched year-round add 2-3 inches of additional material after one or two hard frosts. Some plants, particularly those native to mild climates, benefit from extra protection. Pruning, staking and covering can help these ornamentals stand up to heavy snowfall, winter winds and low temperatures.
Winter-Happy Specimens
EVERGREENS
Nature has produced many evergreens adapted to regions that receive regular snowfall. Spruces and Hemlocks have perfect examples of down-turned main branches which quickly shed snow. Ice, followed by stong wind, still can tear off weakened branches, but these trees resist mutilation better than most. The long, horizontal branches of Pines, on the other hand, trap large amounts of snow and ice. To keep from losing major branches, thin the crowns of pines on a regular basis during the dormant season. Remove overlapping branches so that the center of the tree is opened yet its natural silhouette is maintained.
Evergreen plants with upright stems, such as many Yews and Arborvitae, tend to become distorted when covered with blobs of wet snow or ice. Shearing into hedge like outlines can reduce damage, but if you prefer a naturalistic outline, stake and tie the branches. For tall plants, pound a 2-3" diameter metal pipe securely into the rootball, within 6-8" of the main trunk. Since you will be atop a wobbly ladder while holding a sledgehammer, this is no simple chore. A trusted helper can steady our ladder- as well as your nerves. Once your have the stake firmly in place, fasten the trunk loosely with several turns of hemp rope or rubber-covered wire around the pipe, much as you would stake tomato plants. An alternative method for supporting tall shrubs is to wrap the stems with stout twine, hemp rope or nylon fishing monofilament. To gently lock branches in place, wrap in a downward spiral from the top. Snow will slide off the upward, non-spreading branches.
DECIDUOUS
Deciduous trees, such as Maples, with wide- spreading crowns and extensive, long branches are prone to cracking from the weight of ice and snow. Thinning and reducing the spread helps prevent winter damage and ultimately adds years of life to the plant. Brittle stemmed trees, such as Willow and Silver Maples, can benefit from crown reduction as well. Both these common trees are water loving and often situated in moist locations, so branches may be more flexible and resistant to damage from snow overload. Those trees with normally dense, upright and twiggy branching, such as columnar Birch and Hornbeam, fare poorly with excessive snowfall. Cabling helps, but you may have to live with the distortion.
SHRUBS
Most shrubs suffer less difficulties in winter, yet those in unsheltered sites will benefit from some protection. To guard against winter-burn, especially for truly sensitive shrubs such as boxwood and rhodendron, wrap them with economical burlap covers held by sturdy stakes and loosely tied with soft cord. Or, to avoid the burlap sheilds altogether, spray the plants thoroughly with a water-soluble wax coating such as Wilt-Pruf, starting in early winter. Waxing presents a glossy foliage appearance, greatly reduces dehydration of foliage and budding, and wears off by the following spring. Waxing broad-leafed evergreens has a drawback, however. Once begun, plants come to "expect" this coddling treatment, and if you skip a year- and that winter is severe- you may find plants shabbier than ever before. Be sure to schedule the treatment annually. Where a snowslide from a roof creates havoc for plants, use sturdy wood framed teepees to cover the shrubs. Electric snow melters at the gutter line may help, but rapid and dense snowfalls often overcome the heatradiating from these roof wires. Of course, you can always remove threatening icicles from your upper windows.
ROSES
Winter protection of some sort is necessary for hybrid roses in most of the country. In the South, a mulch of shredded bark or pine boughs will suffice. In colder regions, gardeners may want to shield their collection with the rose baskets or buckets available from many garden centers. These convenient covers are ventilated and store readily when not in use. A more econimacal system is to hill up earth around the bottom 12-15" of stems, before the soil freezes. Rather than take soil away from the surrounding area where it protects roots from the cld, use new soil. Pat it snugly into a cone, then prune the rose tops halfway. After the soil has frozen slightly, mulch with pine branches or leaves. Mound soil around the base of climbing roses and wrap the canes with burlap.
None of these measures, of course, guarantees that all your trees, shrubs and perennials will make it to springtime grandeur. Plants that are not suited to their locations are apt to suffer winter damage, regardless. But homeowners who take these simple precautions- watering, mulching, pruning, and staking- can greatly increase their plants' chances for survival. By winterizing your landscape in fall, you can enjoy the full beauty of all the seasons to come.
Moody's Nursery & Garden Center
82 Ferry Road
Saco, ME 04072
ph: 207-284-7233
fax: 207-284-9373
moodysnu