What to Plant in May in Wyoming
Your May planting guide for Wyoming (USDA Zones 3–6, typically Zone 4). We've broken out activities by zone — jump to yours below.
Growing season varies across Zones 3–6 — 120–180 days. Pick the zone that matches your part of the state.
🏠
711
Start Indoors
🌿
1353
Transplant Outdoors
🌱
1210
Direct Sow
🧺
213
Harvest
Zone 4 — May in Wyoming★ Most of WY
552 varieties active · Last frost May 10 · 135-day season
Alfalfa Microgreens
Microgreens · 6-10d
Amara
Lettuce & Salad Greens · 21d
Amaranth Microgreens
Microgreens · 50d
Amaranth, Glitter Mix
Microgreens · 16-25d
Arugula
Lettuce & Salad Greens · 10-15d
Arugula 'Rocket'
Brassicas · 20-40d
Arugula Microgreens
Microgreens · 10-15d
Basil Microgreens
Microgreens · 74d
Zone 3 — May in Wyoming
1110 varieties active · Last frost May 15 · 120-day season
Alfalfa Microgreens
Microgreens · 6-10d
Amara
Lettuce & Salad Greens · 21d
Amaranth Microgreens
Microgreens · 50d
Amaranth, Glitter Mix
Microgreens · 16-25d
Arugula
Lettuce & Salad Greens · 10-15d
Arugula Microgreens
Microgreens · 10-15d
Basil Microgreens
Microgreens · 74d
Basil, Lemon
Microgreens · 16-25d
Zone 5 — May in Wyoming
1814 varieties active · Last frost April 30 · 155-day season
Alfalfa Microgreens
Microgreens · 6-10d
Amara
Lettuce & Salad Greens · 21d
Amaranth Microgreens
Microgreens · 50d
Amaranth, Glitter Mix
Microgreens · 16-25d
Arugula
Lettuce & Salad Greens · 10-15d
Arugula 'Rocket'
Brassicas · 20-40d
Arugula Microgreens
Microgreens · 10-15d
Asian Delight
Lettuce & Salad Greens · 37d
Zone 6 — May in Wyoming
1831 varieties active · Last frost April 15 · 180-day season
Alfalfa Microgreens
Microgreens · 6-10d
Alpine
Root Vegetables · 55d
Amara
Lettuce & Salad Greens · 21d
Amaranth Microgreens
Microgreens · 50d
Amaranth, Glitter Mix
Microgreens · 16-25d
Arugula
Lettuce & Salad Greens · 10-15d
Arugula 'Rocket'
Brassicas · 20-40d
Arugula Microgreens
Microgreens · 10-15d