Seeds failing to germinate, tomatoes refusing to ripen, and basil languishing are all typical signs of summer in Seattle. It’s often beautiful with pleasant temperatures for people but oh, those poor tropical, heat-loving plants just sulk. I’m sure someone has managed to ripen a melon in Seattle but I haven’t met them.
What a plant needs temperature-wise involves daytime temps, nighttime temps and soil temps. Our cool nights, even in the height of summer, shock and delay growth for many heat-loving plants. (FYI, please, do not buy that poor little basil plant sitting in front of the grocery store at the moment and plop it in the ground expecting it to grow. It needs night time temps reliably above 55°F.) Read more »