Rainline Garden

When to plant squash, cucumbers and melons in the Northwest

Sprawling vines for the warmest part of summer. Pick a plant for its dates in every city we cover and a step-by-step growing guide.

Planting windows at a glance

Main planting window in four reference cities. Each plant's page has every city.

PlantPortlandSeattle and TacomaBend and RedmondSpokane
CucumbersMay 10 – Jun 7May 10 – Jun 7Jun 9 – Jul 7May 20 – Jun 17
Zucchini and summer squashMay 10 – Jun 7May 10 – Jun 7Jun 9 – Jul 7May 20 – Jun 17
Winter squash and pumpkinsMay 10–31May 10–31Jun 9–30May 20 – Jun 10
MelonsMay 10–31May 10–31Jun 9–30May 20 – Jun 10

Other plant types