Thursday, December 8, 2016

Working the Denver garden in winter and early spring

For some Denver gardeners, winter is a welcome reprieve from gardening. Others wish they could garden all year. If you're in the latter group, you'll be glad to know that in Denver, at least, you don't have to stop gardening when the snow falls. Here's how you can garden throughout the winter in Denver.

November

The first day of winter is usually somewhere around the 21st of December. That doesn't mean it won't be nippy in Denver before then. Officially winter or not, November is usually considered a winter month. In Denver, however, it's still very possible to keep cold hardy vegetables like greens and root vegetables growing right up until the first of December. If you have a cold frame or greenhouse, you may be able to grow them all winter. It all depends on how cold it gets.

In November, you can likely still finish your garden clean-up tasks. You may even still have some produce to harvest. Yes, there will be cold days. There will also be warm ones. Take advantage of them when they come to finish the last of your big garden tasks, set up those cold frames, pick off the last of the harvest and more. December is not quite as Denver garden user friendly.

December

Denver Decembers can be bitterly cold. They can also be seasonally warm. That's due, of course to the semi-arid climate. While it may be possible for procrastinating Denver gardeners to continue their garden clean-up into the weeks prior to Christmas, there are no guarantees. A better bet would be to use this time to wrap up those garden themed Christmas gifts. Your homemade salsa, sauces, jellies, jams and even your excess squash and pumpkins make a wonderful gift for those without a garden.

You can also start herbs indoors for next year's garden and continue tending any hardy veggies you may still have growing.

January

It's January already? In Denver, January is typically frigid. Time for gardeners to stay primarily indoors. Order and/or peruse those seed catalogs. Checking your seed inventory first insures that you won't over-order. Believe it or not, January is also a great time for planting onion seeds. Starting early gives them time to develop into mature bulbs for planting.

Re-pot any herbs that have outgrown their starter pots.

February

February is all about paper plans. Make a scale sketch of your garden spaces. Take a look at the seeds you have in stock. Consider the plants you plan to buy or grow. Pencil everything in so you can make necessary changes easily. Take size and height into consideration. In Denver, the general rule is to plant your rows running from north to south. Taller crops should be planted in the westernmost rows, shorter ones in the east, toward the rising sun. This way, as the sun makes it's way across the sky, no plant is shaded by another.

Don't forget to check that your neighboring veggies are compatible.

It might surprise some newer Denver gardeners to know that February is also a great time to start tomatoes and peppers indoors or in a heated greenhouse. Once again, that early start insures that plants will be a healthy size and in good condition for planting when the time comes. They will have to be re-potted, trimmed and fed as they grow.

March

Use March to start the rest of your veggies indoors in Denver. There are also some crops like peas, squash and corn that can be started from seed outdoors in late March. If you're not sure which ones, check the Farmer's Almanac.

April/May

Winter is pretty much over by the end of April in Denver. You should have your garden space tilled and ready and a few hardy seed crops planted by May 1st. Some can be planted sooner. You may still see snow or frost in April, but the garden soil should be workable, for the most part.

By the first of May, you should have most seeds planted. Tomatoes and peppers will have to wait until mid-May or the first of June, weather dependent. Don't do any heavy planting without checking weather reports. And remember, Denver is on the edge of the tornado belt. Be ready to quickly protect plants from those spring storms that begin in June.

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