When to Plant in Ogden, UT

In Ogden, the gardening season is defined by a median last spring frost date of May 6 and a median first fall frost date of October 11, providing gardeners with approximately 158 frost-free days each year. This timeframe is crucial for planning what crops to plant, as it dictates when seedlings can be safely transferred outdoors and when to begin preparations for the colder months ahead.

The microclimate in Ogden is classified as continental mountain, characterized by cold nights and intense sun. This unique combination allows for excellent growth of crops such as tomatoes, peppers, and corn, which appreciate the warmth during the day, while the cool nights prevent excessive heat stress. However, crops like lettuce and spinach can struggle with the intense sun and fluctuating temperatures, often bolting prematurely as the days heat up.

What to plant now in Ogden

Spring: Start tomatoes and peppers indoors by March, then transplant them after the last frost date of May 6. Consider sowing hardy crops like peas and lettuce in early spring, as they're tolerant of cooler conditions.
Summer: In early June, direct sow heat-loving crops like beans and squash outdoors. Continue to plant successively every few weeks to extend your harvest through the warmer months.
Fall: Begin planting cool-season crops like kale and carrots in early September, taking advantage of the time before the first fall frost on October 11. These crops can often withstand slight frosts for improved flavor.
Winter: Use late fall to prepare your garden for winter by adding mulch and compost. Plan for next year's garden by researching what varieties thrived the past season, adjusting your choices to adapt to your microclimate.

In Ogden (158 frost-free days, a moderate season), 32 of 56 planner crops fit outright, 23 get two plantings, 1 crop is perennial.

Month by month in Ogden

Month	What to do
January	January is a time for planning and preparing. Consider organizing your garden layout and ordering seeds for the upcoming planting season. Keep track of frost dates to ensure your selections fit within the growing window.
February	February is ideal for starting certain seeds indoors, such as onions and herbs. This early preparation will set you up for success once the last frost on May 6 has passed, allowing for a jumpstart on your garden.
March	As the chill of winter begins to fade, March is an essential month for sowing seeds indoors. Plant tomatoes and peppers indoors and prepare your garden beds for early spring planting as frost risks reduce.
April	April is a transition month, where you can start hardening off your seedlings. Prepare your outdoor garden by removing weeds and adding compost. April rains will help set the stage for growth as you prepare for warmer days.
May	May is critical as it marks the average last frost date of May 6. After this date, plant your tomatoes and peppers outdoors. Additionally, consider planting warm-weather crops like beans and squash to take advantage of the growing season.
June	June brings warm days and plenty of sunlight. You can direct sow beans, squash, and cucumbers now. Regular watering and mulching will help retain moisture during the hotter days, promoting healthy growth.
July	In July, continue caring for your summer crops. Water deeply and ensure plants receive enough nutrients. Harvest early vegetables like peas and lettuce as they reach maturity, freeing up space for additional summer sowings.
August	August is a crucial month for planning your fall garden. Start sowing cool-season crops like kale and spinach towards the end of the month to prepare for the cooler temperatures of Fall.
September	September signals the start of cooler temperatures. Plant more kale and carrots, which can thrive well into the fall. Begin to harvest remaining summer crops before the frost arrives.
October	October's brisk air reminds you of the approaching winter. The first frost date on October 11 calls for final harvests and preparations to winterize your garden. Clean up debris and mulch to protect your soil.
November	In November, your garden goes dormant. Use this time to assess what worked and what didn’t. Incorporate compost into your garden beds for next spring, and consider protecting perennials with mulch.
December	December is a quiet month in the garden. Focus on planning for the coming year, setting goals, and reviewing seed catalogs. Maintain garden tools and prepare to embrace the upcoming planting season.

Frost dates for Ogden ZIP codes

ZIP	Last spring frost (50%)	First fall frost (50%)	Zone
84404	May 6	October 11	7a

FAQ

When is the last frost in Ogden?

The last frost in Ogden typically occurs around May 6, which is an important date for gardeners to remember, as it marks the transition into the spring planting season.

What vegetables grow best in Ogden?

Vegetables such as tomatoes, peppers, and corn thrive well in Ogden's continental mountain climate, enjoying the warm days and cool nights that enhance their flavor and growth.

When should I plant tomatoes in Ogden?

Tomatoes should be started indoors by March and transplanted outdoors after the last frost date of May 6 to ensure they have enough warmth for growth.

Can I garden year-round in Ogden?

While gardening year-round is challenging due to frost dates, cool-season crops can often be grown in fall and early winter with proper protection, allowing for a bit of gardening even in colder months.

How does Plan My Garden help Ogden gardeners?

Plan My Garden offers tailored advice based on local climate and frost dates, helping Ogden gardeners optimize their planting schedules, crop selection, and overall garden management.