10/30/15: In the garden this week

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Most perennials have finished blooming and setting seed, but on sunny days bees and other pollinators are still enjoying the New England asters.

I heard you had some highly variable weather while I was on vacation! Rain, more drought, a cold spell, then warm again, and finally, this week, a good soaking rain. With the recent lifting of drought restrictions, it’s finally safe to do some fall planting. Here are some things you might be doing in your garden this week (in between handing out candy to trick-or-treaters):

— it’s not too late to plant hardwood trees and large shrubs. You can plant most hardy trees until the ground freezes. Be sure to mulch well and water thoroughly: give at least 1 inch of water per week until the ground freezes, and then again as soon as it thaws in spring.

water new plantings: newly installed plants still need watering. Any week in which we receive less than an inch of rain (not this week, obviously!), continue to water all perennials and woody plants installed this season. How do you know when you’ve provided an inch of water? An old yogurt container placed on the ground among the plants makes a great rain gauge. A tunafish or catfood can works equally well.

clean up the vegetable garden carefully. Discard (do not compost) infested or diseased plants. Clean up meticulously as each crop finishes producing. This year’s diseased plants, left in the garden, are the source of next year’s infections.

— Tend the fall vegetable garden: if you seeded second crops of cool-season plants like peas, lettuce, and spinach, you’re probably harvesting now. We could get a killing frost at any time, so keep harvesting. We have been enjoying a delicious fall crop of arugula.

— this is a good time to extend a garden bed or start a new one, and it’s always a great idea to eliminate some lawn: spread a 3-4″ layer of cedar or hemlock bark mulch over the area to kill the grass. Next spring, you’ll be able to plant right through the dying grass and mulch. I mulched an area of lawn during the summer and am scattering perennials seeds there as they ripen.

— Now that you can water, there’s time to reseed bare areas of lawn. Most lawn grasses will grow until the temperature dips below 40 degrees. But if you seed, water several times a day until the grass is at least an inch tall. Better still, if you have a place where grass won’t grow, plan to plant something that will, like shade-loving native perennials. Measure and mulch the bed now so you’re ready to plant in spring.

Keep a garden log. Right now, before you forget, write down this year’s gardening successes and failures as well as plans for next year. The best thing about gardening is that there’s always next year.

And get out there and enjoy the autumn colors. The fall foliage is at its most colorful in our area right now, and the weather is perfect!

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The fall colors of Aronia are highly variable. This year, one of my plants is displaying this gorgeous orange.

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