April Tips for nw gardeners


April is Rain or Shine Month! 


Now is a good time to create colorful containers of spring flowers. Try 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!  



Mix some high-quality compost into your soil before planting and use a natural fertilizer, like Dr. Earth Tomato and Vegetable, and Herb Fertilizer. 

You can plant cool-season veggies throughout April. Think strawberries, carrots, radishes, runner beans, lettuce, kale, and beets.

Start squash and cucumber seeds indoors in mid-April to be ready to plant outside when the weather warms.

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).

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


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.

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.

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-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!

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.