One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to determine when it's a good idea to plant nasturtium by referring to the USDA zone info for Tooele.

Planting Calendar for Nasturtium

Frost tolerance for nasturtium:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's not a good idea to plant nasturtium until after the last frost because they do not do well in cold weather.

The earliest that you can plant nasturtium in Tooele is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant nasturtium and expect a good harvest is probably August. You probably don't want to wait any later than that or else your nasturtium may not have a chance to really do well. If you are starting your nasturtium indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Tooele. You should expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Tooele may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Tooele you get a frost after April 15 so be sure to be ready to protect your nasturtium in the event of a late frost.

USDA Zone Info for Tooele

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Tooele

You may be interested in your other planting guides for Tooele.