Grow-How: Your October Gardening Checklist

by Isabel Vinton

October is the the garden gate of the season. It's the dividing line between one year's bounty and the next. With its arrival comes the end of the planting period for most crops, and the last call for many others. But October also heralds harvests of squash, sunflowers, and fall greens. And it offers us the opportunity both to plant seeds to overwinter and to pamper our growing spaces so our gardens will be better than ever come spring. Relish October's potential for both present and future with these garden to-dos.


Although the time to sow new seeds for harvest this year has passed, there's still plenty of sowing to be done in anticipation of spring. Take a look at the following categories to get started, then check out this list of October-sown seeds.

Greens: Winter hardy greens like Mache and Spinach can still be sown this month and into the winter. They will grow roots with each warm day, thaw in the coldest months, and in early spring, will grow foliage for next season’s first salads.

Garlic and Shallots: The theme of this month’s sowing opportunities aren’t seeds, but bulbs. This is a perfect month for planting garlic. Garlic needs a bed with lots of organic matter as well as mulch. For detailed planting instructions, have a look at our recent Garlic Guide. To learn more about this potent plant’s history and cultural reputation, take a look at our Garlic Plant Personality post. And don't forget about shallots! They're just as easy to grow as garlic and add a unique kick to your cooking.

Flower Bulbs: October is not only great to plan(t) ahead for your taste buds, but for visual feasts as well. Fall-planted flower bulbs like Alliums, Crocuses, Daffodils, Irises, Muscari, and Tulips can be sown now, and will be ready to emerge colorfully in early spring. Bulbs, unlike seeds, like to be placed deep in the ground. Dig a hole that is two or three times deeper than the bulb. Plant it right side up: the round end of the “tear-drop” should be on the bottom, pointy end facing up. Cover back up with soil and water in well to help the bulb establish roots. Flowering bulbs look extra good when grown fairly closely together like a loose bouquet, so consider scattering them about (still mostly following the suggested spacing) instead of planting in straight rows. Keep the planted area weeded to eliminate the competition for water and nutrients. If you find that some bulbs get “un-planted” by hungry critters, consider protecting your bulb bed by laying down a sheet of chicken wire over it removing when the plants sprout in the spring. Aim to plant fall bulbs anytime before the ground freezes (which will be a few weeks after the first frost date). For more tips and help choosing the right  bulb, read Bright Ideas. A Flower Bulb For Every Purpose.


At this time of year, just like in spring, it can be easy to be tricked by the warm days, but nights can quickly dip into low temperatures and the weather can take an unpredictable turn. To keep tender crops producing for a few extra weeks, season extension tools such as cold frames, row cover, and quick wire hoops are very effective. Look back to our Season Extension post for more on row cover use. Wire hoops are simple wire frames that can be inserted into the ground around plants to keep row covers from direct contact with crops, thus adding better heat retention, airflow, and overall plant health. They can also be used in greenhouses and high tunnels, or under taller low hoops that hold plastic, adding 5 degrees to any space. To learn all about the advantages of cold frames and how to build one yourself, take a look at Doug’s Quick and Easy Cold-Frame Tutorial.



As patches of bare soil open up in the garden, take time to make sure your soil is healthy, fed, and ready for next season. Now is the time to add balance and add in nutrients, through amendments and cover crops. Before fall plantings, consider an additional application of one inch of compost as well as a repeat of your regular amendment regimen to keep your soil strong. For a cost effective way to build organic matter, fix nitrogen, draw nutrients from the soil, prevent erosion, and break pest and disease cycles - sow cover crops! Leaving your soil bare over the winter can lead to erosion and nutrient loss, but cover crops will leave it better than they found it. Learn which cover crops you can still plant now and basic info about each one in our Fall Cover Crop Planting Chart.

The crisp days and pleasantly brisk weather make October days ideal for spending outside. Get as much gardening in as you can this month!