The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant salvia in Dubuque should be estimated by referring to the USDA zone info.

Planting Calendar for Salvia

Frost tolerance for salvia:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Salvia do ok in some cold which means that you can plant them slightly earlier in the year than more sensitive plants.

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

The last month that you can plant salvia and expect a good harvest is probably August. If you wait any later than that and your salvia may not have a chance to fully mature. Starting your salvia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Dubuque. You should expect an average low temperature of -20°F in the coldest months of winter.

Always keep in mind that USDA zone info for Dubuque is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Dubuque last frost occurs after April 15 be ready to cover your salvia in the event of a late frost.

USDA Zone Info for Dubuque

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Dubuque

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