Utah Planting Calendar
Utah spans USDA hardiness zones 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a. Planting dates vary significantly across the state depending on your zone. Find your county on the map below for exact frost dates and planting windows.
Find Your County
Click any county to see your local planting calendar with exact frost dates and planting windows.
Hover over a county to see details. Click to view planting guide.
Zones in Utah
Zone 4b
Winter low: -25 to -20°F
155
Growing Days
May 1
Last Frost
Oct 3
First Frost
3
Counties
Zone 5a
Winter low: -20 to -15°F
166
Growing Days
Apr 25
Last Frost
Oct 8
First Frost
3
Counties
Zone 5b
Winter low: -15 to -10°F
178
Growing Days
Apr 18
Last Frost
Oct 13
First Frost
13
Counties
Zone 6a
Winter low: -10 to -5°F
193
Growing Days
Apr 10
Last Frost
Oct 20
First Frost
6
Counties
Zone 6b
Winter low: -5 to 0°F
205
Growing Days
Apr 3
Last Frost
Oct 25
First Frost
3
Counties
Zone 8a
Winter low: 10 to 15°F
255
Growing Days
Mar 8
Last Frost
Nov 18
First Frost
1
Counties
Growing Season Comparison
Growing Season by Zone
Zone 1a
Jun 15 – Aug 15
Zone 1b
Jun 7 – Aug 25
Zone 2a
May 30 – Sep 1
Zone 2b
May 22 – Sep 10
Zone 3a
May 15 – Sep 15
Zone 4a
May 6 – Sep 28
Zone 5a
Apr 25 – Oct 8
Zone 5b
Apr 18 – Oct 13
Zone 6a
Apr 10 – Oct 20
Zone 6b
Apr 3 – Oct 25
Zone 7a
Mar 25 – Nov 1
Zone 7b
Mar 18 – Nov 8
Zone 8a
Mar 8 – Nov 18
Zone 8b
Feb 25 – Nov 28
Zone 9a
Feb 10 – Dec 10
Zone 10a
Jan 1 – Dec 31
0
90
180
270
365 days
Frost Dates & Growing Season by County
View all 29 Utah counties with frost dates
| County | Zone | Last Frost | First Frost | Growing Days |
|---|---|---|---|---|
| Beaver County | 5b | May 21 | Sep 29 | 131 |
| Box Elder County | 6a | May 22 | Oct 3 | 134 |
| Cache County | 5b | Jun 11 | Sep 2 | 83 |
| Carbon County | 5b | May 17 | Sep 27 | 133 |
| Daggett County | 4b | May 13 | Oct 1 | 141 |
| Davis County | 6b | May 6 | Oct 10 | 157 |
| Duchesne County | 4b | May 10 | Oct 4 | 147 |
| Emery County | 5b | May 11 | Oct 4 | 146 |
| Garfield County | 5b | May 27 | Sep 21 | 117 |
| Grand County | 6a | Apr 19 | Oct 13 | 177 |
| Iron County | 6b | May 21 | Oct 1 | 133 |
| Juab County | 5b | May 19 | Oct 2 | 136 |
| Kane County | 6a | May 13 | Oct 7 | 147 |
| Millard County | 5b | May 16 | Sep 30 | 137 |
| Morgan County | 5b | Jun 17 | Aug 31 | 75 |
| Piute County | 5b | May 14 | Oct 1 | 140 |
| Rich County | 4b | May 31 | Sep 15 | 107 |
| Salt Lake County | 6b | May 6 | Oct 10 | 157 |
| San Juan County | 5b | May 2 | Oct 11 | 162 |
| Sanpete County | 5b | May 21 | Sep 28 | 130 |
| Sevier County | 5b | May 19 | Sep 30 | 134 |
| Summit County | 5a | Jun 10 | Sep 12 | 94 |
| Tooele County | 6a | May 1 | Oct 17 | 169 |
| Uintah County | 5a | May 10 | Oct 4 | 147 |
| Utah County | 6a | May 5 | Oct 11 | 159 |
| Wasatch County | 5a | May 19 | Sep 26 | 130 |
| Washington County | 8a | Apr 6 | Nov 1 | 209 |
| Wayne County | 5b | May 14 | Oct 2 | 141 |
| Weber County | 6a | May 26 | Sep 21 | 118 |
🥬 Vegetables
Browse all 116 vegetables you can grow in Utah
- Acorn Squash
- Amaranth
- Artichoke
- Arugula
- Asparagus
- Beets
- Belgian Endive
- Bitter Melon
- Black Beans
- Bok Choy
- Broccoli
- Broccoli Rabe
- Brussels Sprouts
- Butternut Squash
- Cabbage
- Calabash
- Cardoon
- Carrots
- Cauliflower
- Celeriac
- Celery
- Celtuce
- Chard
- Chayote
- Chickpeas
- Chicory
- Chinese Cabbage
- Christmas Lima Beans
- Collard Greens
- Corn
- Cowpeas
- Cress
- Crookneck Squash
- Crosne
- Cucumber
- Daikon
- Delicata Squash
- Edamame
- Eggplant
- Endive
- Escarole
- Fava Beans
- Fennel
- Garlic
- Ginger
- Green Beans
- Horseradish
- Hot Peppers
- Hubbard Squash
- Jicama
- Kabocha
- Kai Lan
- Kale
- Kidney Beans
- Kohlrabi
- Komatsuna
- Leeks
- Lentils
- Lettuce
- Lima Beans
- Loofah
- Luffa
- Mache
- Malabar Spinach
- Melon
- Microgreens
- Mitsuba
- Mizuna
- Mustard Greens
- Napa Cabbage
- New Zealand Spinach
- Okra
- Onion
- Pac Choi
- Parsnip
- Patty Pan Squash
- Peas
- Peppers
- Pole Beans
- Potatoes
- Pumpkin
- Purslane
- Radicchio
- Radish
- Rhubarb
- Romanesco
- Rutabaga
- Salsify
- Savoy Cabbage
- Scallions
- Scarlet Runner Beans
- Shallot
- Shiso
- Snap Peas
- Snow Peas
- Soybeans
- Spaghetti Squash
- Spinach
- Squash (Summer)
- Squash (Winter)
- Sunchoke
- Sunflower
- Sweet Corn
- Sweet Potatoes
- Tatsoi
- Tomatillo
- Tomatoes
- Turmeric
- Turnip
- Watercress
- Watermelon
- Wax Beans
- Winter Melon
- Yam
- Yard Long Beans
- Zucchini
🍓 Fruits
Browse all 34 fruits you can grow in Utah
- Alpine Strawberries
- Aronia
- Blackberries
- Blueberries
- Boysenberries
- Cantaloupe
- Che Fruit
- Cranberries
- Currants
- Dragon Fruit
- Elderberries
- Figs
- Goji Berries
- Gooseberries
- Grapes
- Ground Cherry
- Guava
- Hardy Kiwi
- Haskaps
- Honeydew
- Jostaberry
- Kiwi
- Lingonberries
- Loquat
- Medlar
- Mulberries
- Passion Fruit
- Pawpaw
- Persimmon
- Pomegranate
- Quince
- Raspberries
- Serviceberries
- Strawberries
🌿 Herbs
Browse all 42 herbs you can grow in Utah
- Angelica
- Anise
- Basil
- Bee Balm
- Borage
- Caraway
- Catnip
- Chamomile
- Chervil
- Chives
- Cilantro
- Comfrey
- Cumin
- Dill
- Echinacea
- Epazote
- Fennel (herb)
- Feverfew
- Garlic Chives
- Horehound
- Hyssop
- Lavender
- Lemon Balm
- Lemon Thyme
- Lemon Verbena
- Lemongrass
- Lovage
- Marjoram
- Mint
- Oregano
- Parsley
- Rosemary
- Rue
- Sage
- Savory
- Sorrel
- Stevia
- Tarragon
- Thai Basil
- Thyme
- Valerian
- Yarrow
