One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of getting a good idea when it's the best time to plant rudbeckia is to consult the USDA zone info for Rawlins.

Planting Calendar for Rudbeckia

Frost tolerance for rudbeckia:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Rudbeckia can survive in mild cold which tells us that you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant rudbeckia in Rawlins 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 rudbeckia and expect a good harvest is probably August. You probably don't want to wait any later than that or else your rudbeckia may not have a chance to fully mature. Starting your rudbeckia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Rawlins the average date of last frost happens on May 15. In the coldest months of winter you should expect an average low temperature of -25°F.

Since the USDA zone info for Rawlins is not always accurate the actual date of last frost will vary from year to year. Half of the time in Rawlins you get surprised by a frost after May 15 so make sure that you are ready to protect your rudbeckia if you have a surprise late frost.

USDA Zone Info for Rawlins

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Rawlins

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