October Tips for Pnw gardeners



There are many plants that can add color and interest to the fall garden. Try Mums, Asters, Ornamental Cabbages and Kale, Heather, Pansies, and evergreen grasses. See our Top Picks for October.

Potting up fall containers? Get some inspiration in 5 Container Gardens for Fall and Beyond.

Through mid-October you can lift and separate spring-flowering perennials and bulbs.

It's time to mulch beds with a high quality compost such as G&B Organics Soil-Building Conditioner. Mulch helps keep weeds out and protect roots from frost. Plus, it adds a clean look to garden beds.





It’s time to plant garlic and onions to harvest next summer! Learn more about growing garlic.

Clear away summer vegetable plants such as tomatoes, squash, and peppers when they have finished producing. Note: Do not home compost any plants with diseases or insects.

As night temperatures dip, set up winter protection like cloches, cold frames, and hoops to extend the growing season.

Check our category Edible Gardening on the blog for helpful posts about all things edible.


As the weather cools, be sure to bring inside any houseplants that have "summered" out of doors. Check carefully for insects that might be tagging along and consider keeping these plants separated from others until you are sure they are bug free.

Unless your houseplants are very rootbound, put off repotting until next spring.

Want to help your indoor plants thrive? Learn more about the Proper Care and Feeding of Indoor Plants





Apply lime now to help control moss and keep the lawn healthy.

Keep a regular mowing schedule through the end of the growing season. Remember that the height of the grass generally equals the depth of the roots, so keeping grass a little longer helps build a strong support system. Set your mower to medium height to avoid cutting off more than 30% at a time.

See our Lawn Calendar for more monthly tips to keep your lawn lush and healthy.


Plant Care Library

At Swansons, we’re dedicated to growing the smartest, hippest, and healthiest gardeners in the Pacific Northwest. Below is a library filled with pages on what we grow in Seattle. Just remember, we were all novices once, and no one knows it all. So enjoy, keep learning, and happy gardening!

Looking for more Pacific Northwest gardening resources? Here is a list of our community partners.