Gardener’s To-Do List for May

Here’s a zone-by-zone to-do list for the month of May.


If you don't know what USDA Plant Hardiness Zone you live in, check the map here to find out.

Plant potatoes in zoone three in MayMay To-Do List for Zone 3

  • Remove winter protection from hybrid tea roses, but have those jute sacks ready in case of a freeze.
  • Begin hardening off annual flowers by exposing them to cooler temperatures for longer periods each day.
  • Seed cold-weather crops.
  • Give perennials and fruit trees a generous feeding of compost, and if it has been dry, water them deeply to boost their growth.
  • Toward the end of the month, plant potatoes and seeds of warm-season crops.
  • Protect cauliflower and broccoli transplants from root maggots with 4-by-4-inch collars made of heavy paper, placed on the soil around the base of the plants.

Photo: Christa Neu