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Ron Wolford
Extension Educator, Urban Horticulture & Environment

 

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Colorful Plants That Say Happy Holidays

Jerusalem cherries are one of the most colorful holiday plants you can buy. When purchased, it is covered with small, round, brilliant-red fruit. Give bright light and hold as cool as possible (45 to 50 degrees F. at night) for extended display. Keep the soil evenly moist because leaves and fruit drop rather quickly if the plant wilts. The fruits are supposedly poisonous. This plant is seldom worth growing a second year.

Another very colorful and attractive plant for the holidays is the Christmas Pepper. It holds up quite well even at ordinary room temperatures and fits beautifully into the holiday color scheme.

Give good light and cool temperatures whenever possible. This annual is sold in full fruit and should be discarded when no longer attractive. Insufficient watering causes loss of leaves and rapid disintegration of fruit. The miniature peppers can be dried for condiment purposes. But use cautiously - they are very hot.

Source: PENpages News, Penn State College of Agricultural Sciences

Winter Effect

As you travel this holiday season keep an eye out for plants with striking winter effect. This could include plants with red or yellow stems such as redtwig dogwood, barberry or yellowtwig dogwood and plants with fruit that remains on the plant well into the winter. As you note these plants, be thinking how you could incorporate them into your own landscape design. Would they look good against a stone wall or the white side of a building? There are many evergreens with yellow, blue or green needles that come in many sizes so its not too hard to find one that works well in any location. If you already have the redtwig and yellowtwig dogwoods, but the colors are not as bright as in past years, you may need to prune out the old wood. Stems more than two years old tend to darken and lose the bright color that the plant is noted for. Remove these stems in late winter. Some other plants with winter effect are: Holly, River Birch, Washington Hawthorn, Crabapples, SedumAutumn Joy and many ornamental grasses.

Source: PENpages News, Penn State College of Agricultural Sciences

Snow Pros and Cons

Snow can serve as an important insulator for plants in the winter. Snow will moderate the temperature around the plant - at least up to a point. Extremely low temperatures maintained for long periods may still do plenty of damage. This doesn't mean snow should be piled around plants. If snow becomes too compacted, it can cause injury to the plants.

Snow accumulation on top of evergreen shrubs and tree branches can result in breakage. Always remember to go out after a heavy snowfall and brush the snow from the evergreens. A broom is usually a good choice for this chore and will help in reaching those taller shrubs and trees.

Source: PENpages News, Penn State College of Agricultural Sciences

Winterburn

Evergreen foliage is killed during late winter. The sun thaws the foliage, which then refreezes rapidly when the sun is blocked or at sunset and the foliage temperature rapidly drops. Thawed foliage may lose water that can't be replaced by roots in frozen soil, so the plant dries out. The symptoms are browned foliage in the spring, especially on the south or southwest side of a planting or plant.

Prevent the problem by shading susceptible plants. Use burlap screens, discarded Christmas trees or any other simple shade source. Because injury usually occurs in late winter, you need not apply the protection until after Christmas.

Source: MSU Extension

Winter 1996
Winter Preparation for Ornamental Plants | Deicing Salt Can Injure Plants | Bug Bites: Woolly Worms | Hort Shorts | Hort Tips | Food Safety: A Procrastinator's Guide to a Safe Holiday Dinner | Food for Thought: Help! Refrigerator Overload! | Healthy Cooking: A Quick Start Breakfast | Health and Household Tips

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