Utah Planting Zones

Utah Planting Zones Utah, also known as the Beehive State, is an extremely challenging region for gardening. The state stretches across six different planting zones (4, 5, 6, 7, 8, and 9) with the average minimum temperature ranging between -30° and 25° F (-34.4° and -3.9° C) depending on which area you’re located.


The average elevation in Utah is 6100 feet making it the third-highest state in the country. The landscape is made up of tall mountains, dense pine forests, high plateaus, deep basins, and harsh deserts. The diverse terrain coupled with unpredictable weather makes Utah a complex growing region. However, by learning more about your state and planting zones, you’ll gain a deeper understanding of best gardening practices in this challenging climate.


Image from USDA

Characteristics of Utah Planting Region

Utah has a combination of a semi-arid and desert climate and is considered one of the driest states in the country. Most of the state experiences four distinct seasons throughout the year, with long scorching summers and short, freezing winters. Utah is regularly subjected to extreme and unpredictable weather such as:

  • Severe wildfires
  • Frequent thunderstorms
  • Avalanches
  • Earthquakes
  • Lightning storms
  • Heavy snowfall
  • Temperature fluctuation
  • Drought
  • High winds
  • Landslides





Utah has a mid-length planting season, although this varies across the state. On average, the frost-free period begins mid-May and finishes towards the end of October



Challenges of Growing in Utah

Despite the slightly extended growing season for the region, there are many challenges to gardening in Utah.

1. Unpredictable Weather

The weather across the state is unpredictable and can be severe. Wildfires, thunderstorms, landslides, winds, and more make the region a complete wildcard when it comes to monitoring weather. This, in turn, makes it difficult to track changes and know when to protect your garden.

2. Extreme Temperature Fluctuations

Between the high altitude climate and the desert and mountainous regions, the temperature fluctuates quite dramatically across the state. While daytime temperatures can be warm, nighttime temperatures can plummet and damage all of your hard work.

3. Dry Climate

Utah is no stranger to droughts. The climate across the entire state is very dry, with minimal precipitation throughout the year. Lack of moisture can be detrimental to most plants’ growth, making this a difficult challenge to overcome with outdoor growing.


 Little Cottonwood Canyon, Utah

The Benefits of Using a Greenhouse in Utah

There are several advantages to using a greenhouse in the rugged state of Utah. Not only will it offer protection from the unpredictable weather across the region, but it will also allow you to regulate indoor temperatures and help combat drastic fluctuations. Additionally, a greenhouse can help you mimic a higher humidity level and keep your plants hydrated and healthy throughout the day.

1. Extend your Growing Season

  • Without a Greenhouse:
    Utah typically experiences a brief 3-4 month planting season. This short timeframe limits the ability to grow many vegetables without indoor assistance, making gardening a challenging task if opting for plants that aren’t cold-hardy.

  • With a Greenhouse:
    Gardeners across the state of Utah can benefit from an extended growing season by using a greenhouse. The shorter planting season in the region can increase to 7-9 months, allowing you to grow vegetables beyond the frost-free period.

Learn more about specific growing dates for your area and the best vegetables to plant in each part of Utah.



Customer images of the Sungrow Greenhouse in a similar climate


2. Grow a Wider Variety of Vegetables 

  • Without a Greenhouse:
    Vegetables that can withstand drastic temperature fluctuations and temperamental weather are the best choice for outdoor gardening. Unfortunately, options are very limited across the state. Some vegetables that will do well include:
  • Onions
  • Rhubarb
  • Broccoli
  • Peas
  • Spinach
  • Cabbage
  • Radishes
  • Turnips





  • With a Greenhouse:
    Expand your planting options by using a greenhouse in Utah. This form of growing will allow you to choose from a pool of countless vegetables that may have struggled to survive in an outdoor setting. The following are popular crops for greenhouse gardeners in this region: 
  • Artichokes
  • Asparagus
  • Pumpkins
  • Winter Squash
  • Cantaloupe
  • Eggplant
  • Tomatoes
  • Peppers
  • Lima Beans
  • Basil
  • Cucumbers
  • Summer Squash
  • Sweet Corn
  • Carrots
  • Horse Radish
  • Okra
  • Zucchini
  • Green Beans
  • Garlic
  • Watercress
  • Leeks
  • Celery
  • Spanish Onion
  • Jalapeño


 Artichoke Plant

Why Planta Greenhouses?

Customer Stories From Utah

Back to Planting Zones

Share Your Thoughts

Ask thoughtful questions, share helpful tips, or offer words of encouragement for other greenhouse owners.