April Tips for nw gardeners



Sow or plant hardy annuals in bare spots or where spring bulbs will die back. Some colorful options that will also attract pollinators include alyssum, bachelor's buttons, California poppies, calendula, and fragrant sweet peas.

Now is a good time to create colorful containers of spring flowers. Ty mixing annuals and perennials for variety and longevity: calendula, pansy, euphorbia, wallflower, English daisy, hellebore, sweet alyssum, and snapdragon are all good choices. Be sure to combine plants with similar light requirements! 

Slugs can be a real problem in spring here in the PNW. A few tricks to try: place copper tape or crushed eggshells around plants as a physical barrier, use a natural product like Sluggo or use beer traps to kill them, or even go out at night and mount a "slugnapping" campaign!  

Make sure you have the right tools for the job. Swansons' employees share their favorite tools for jobs both big and small on the blog.





Now is the time to plant hardier veggies and fruit such as peas, lettuce, carrots, kale, beans, strawberries, blueberries, radishes, onions, potatoes, and more. 

Tomatoes, squash, cucumbers, and melons are too tender to plant out right now, but they will be coming soon, so stay tuned!

Keep basil inside on a sunny windowsill or in the greenhouse until night temperatures warm up to the 50's (May-June at the earliest).

Dreaming of home-grown strawberries? Our blog post, Growing Strawberries in the Pacific Northwest, will show you how to make the dream a reality (plus there's a link to a DIY strawberry planter courtesy of Dunn Lumber)!

Still in planning mode? Check out our Plan & Prep your Edible Garden blog post by Hilary Dahl of Seattle Urban Farm Co. to get all the info you need.

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


In spring, most houseplants begin to grow more actively. Start applying a fertilizer formulated specifically for indoor plants. Be sure to follow the directions on the product label for best results.

Do a little plant "spring cleaning". Gently wipe the leaves of larger plants with a damp cloth to remove dust and give smaller plants a tepid shower! Note: plants with fuzzy leaves do not like to get their foliage wet.

Try these 5 Easy Houseplants or these 9 Low-Risk High-Reward Indoor Plants.

See more articles on choosing and caring for indoor plants on the Indoor Gardener section of our blog.

Love your houseplants? So do we! We'd love to see pics. Share the love on our Facebook wall, or on Twitter and Instagram with #heyswansons!




Do you need a lawn makeover? The best time to sow lawn seed is typically April or May, so start planning and preparing your lawn now. See Step by Step Lawn Renovation for more detailed information, and remember you can always ask #heyswansons for help!

As long as your lawn is not soggy, you can apply a lime product like Super Sweet now to balance the pH of your soil.

If it's growing, you can mow it! Set your mower to medium height to avoid cutting off more than 30% at a time.

Remember, the height of the grass generally equals the depth of the roots, so keeping grass a little longer helps build a strong support system.




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.