Updates: Monthly Gardening Calendar

Monthly Gardening Calendar
Sharon Morrisey, Consumer Horticulture Agent
Milwaukee County UW-Extension

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February, 2006

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Winter has returned and is welcome. Plants that have already met their dormancy requirement wait only for warmer temperatures to begin growth again. This is programmed into them and will happen whether its January or June when those conditions arrive.

The worst that can happen is for the temperature to suddenly plummet. Plants waking up from dormancy have let down their guard and may not be able to handle it.

Get outside at least occasionally and examine plants for signs of damage from wildlife. Reapply a repellent or install wire mesh to tree trunks and lower branches of shrubs where bunnies and mice delight in chewing succulent bark.

Then keep busy indoors with updating your gardening records, including a map of locations for last year’s plants. In the veggie garden, plan to rotate to a new site. Begin planning this season’s flower display.

In this month’s garden calendar, entries followed by numbers in parenthesis are the topic of InfoSource on-line messages from the UW-Extension. To print the message scripts from your home computer, visit the website at http://infosource.uwex.edu/

UW-Extension gardening publications on a wide variety of subjects are also available for printing or ordering from the publications website at http://cecommerce.uwex.edu/.

In addition, Wisconsin Garden Facts factsheets can be obtained from the UW-Extension Hort Team website at http://wihort.uwex.edu.

Visit the UW-Extension SouthEast Wisconsin Master Gardener volunteers at their booth at the Home, Garden and Landscape Show at the Waukesha Expo Center, February 24 – 26. They can help answer your gardening questions and direct you to even more resources. Their website is http://milwaukee.uwex.edu/mg/.

First Week

Use sand or cat litter rather than salt to melt ice along sidewalks and driveways to prevent soil and plant damage. Do not use granular fertilizer because excessive amounts of it, too, can damage plants. It also pollutes lakes and rivers as it runs off paved surfaces and frozen ground. For this reason never fertilize on frozen ground or over the snow.

If you need more space to garden, contact your county's UW-Extension office about rental garden locations. In Milwaukee County, call (414) 290-2405.

Prepare for starting seeds indoors by gathering supplies and equipment. The three most crucial elements for successful seed starting are using sterile media, supplemental light and bottom heat of about 70 degrees. Be sure fluorescent fixtures and bulbs are compatible since the newer low-wattage tubes will overheat in old fixtures.

Plan to get your children into the garden this year. Start with projects indoors like a pan of grass for their Easter baskets or oats for the cat. Start a sweet potato or an avocado pit. If you have supplemental lighting, plant a tub of lettuces and garlic cloves and herbs.

With two weeks left until Valentine's Day, its time to start forcing those spring flowering bulbs you've been chilling. The little bulbs like crocus, hyacinth, and scilla should have received 8 weeks of cold. Larger bulbs require 12 – 14 weeks.

Second Week

Remove built-up dust and grime from the leaves of houseplants with a shower. Plants with large leaves can be wiped clean by hand with a cloth or a pair of clean, soft gloves. Use one hand on the upper surface and one below. Water works just fine to clean and shine leaves. Some but not all leaf polish products contain oils which will clog leaf pores.

Third Week

Start seeds for the very first vegetable crop now - onions. Keep the foliage cutback to about 4" until time to transplant outdoors in April. Use what you clip off in salads or soup to add some zip.

Cloves of garlic can be planted in pots indoors to sprout for zesty seasoning.

Sow seeds indoors for impatiens, begonias, petunias, nemesia, dusty miller, and snapdragons.

Fresh cut Valentine's bouquets should be placed in warm water with floral preservative after having the stem ends re-cut. Wash vases with soap and water every time you replace the water. Remove any foliage that is below water level to prevent rot and clogging of stems. Place vase in a cool location (down to 35 degrees) for at least one hour or overnight so that they can re-hydrate before bringing into room temperature.

Drooping roses can be revived by completely submerging them in warm water and re-cutting the stem ends while under water. Leave them in the water to re-hydrate for a half hour before returning them to the vase.

Start garden woodworking projects like coldframes, trellises, arbors and benches. A makeshift but functional coldframe can be set up using a few bales of straw on which an old wooden storm window is propped. Slide back the window to vent heat on sunny days being certain to close it again before sundown

Fourth Week

Being the end of the dormant season, now and throughout the month of March is the best time to prune most woody landscape plants and fruit trees. You can delay pruning birch, maple, black walnut, and elm since these tend to "bleed" when sap starts to move again due to snow melt and thawing soil. The dripping sap does not harm the trees but it is unsightly.

You can also delay pruning of spring flowering plants like forsythia, lilac, flowering almond, pussywillow, quince, cherry, Corneliancherry dogwood and crabapple until after bloom if you can't bear to lose the flowerbuds you prune off.

Otherwise, prune anyway and bring in the cut branches from these early spring flowerers to force flower buds open indoors for your enjoyment.

Seed of larkspur, nigella, and poppies can be sown directly in bare ground to germinate as soon as the snow melts away.