Facebook LinkedIn Email Pinterest Twitter Instagram YouTube Icon Navigation Search Icon Main Search Icon Video Play Icon Audio Play Icon Headphones Icon Plus Icon Minus Icon Check Icon Print Icon Note Icon Heart Icon Filled Heart Icon Single Arrow Icon Double Arrow Icon Hamburger Icon TV Icon Close Icon Sorted Hamburger/Search Icon
Mountain West Regional Reports

Mountain West: May Garden To-Do List | Regional Report

Alliums (Allium cv., Zones 3-8), sumac ( Rhus cv., Zones 3-9), and iris (Iris cv, Zones 3-9). Photo: Mary Ann Newcomer

Carefully inspect your irrigation system. Check hoses, spigots, timers, etc. If you had a long, cold winter, repairs may be needed.

Prune all spring-blooming shrubs after they are finished with their spring display. Forsythias (Forsythia spp. and cvs., Zones 4-9), rhododendrons (Rhododendron spp. and cvs., Zones 4-9), lilacs (Syringa spp. and cvs., Zones 3-8), and viburnums (Viburnum spp. and cvs., Zones 3-9) benefit from this practice.

Wait to plant tender vegetables and annuals until the soil has warmed to 60°F and further frosts are unlikely. Wait a week or two after the average last frost date to plant serious heat lovers such as basil, peppers, eggplant, summer and winter squash, cucumbers,  and melons.

Wait until after the last frost to plant tender vegetables like cucumbers. Photo: Stephanie Fagan.

Mary Ann Newcomer is the author of two books: Rocky Mountain Gardener’s Handbook and Vegetable Gardening in the Mountain States.

View Comments


  1. User avater
    RonaldTague 07/06/2019


Log in or create an account to post a comment.

Related Articles

The Latest

Magazine Cover

Take your passion for plants to the next level

Subscribe today and save up to 44%

"As a recently identified gardening nut I have tried all the magazines and this one is head and shoulders above the pack."


View All