One of the best tools that you have as gardeners to help us figure out 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.

The USDA zone info for Jackson can be looked at to determine when it's a good idea to plant rudbeckia.

Planting Calendar for Rudbeckia

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

Rudbeckia are moderately cold tolerant which tells us that you can plant them earlier than other plants that might not handle the cold.

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

The last month that you can plant rudbeckia and expect a good harvest is probably September. If you wait any later than that and your rudbeckia may not have a chance to really do well. Starting your rudbeckia indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

It's important to remember that USDA zone info for Jackson may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Jackson it frosts late in the year after April 15 so always be ready to cover your rudbeckia in the event of one of those late frosts.

USDA Zone Info for Jackson

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 Jackson

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