The USDA Zone info is a great tool for gardeners to help us determine 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.

You should be able to determine when it's possible to plant rudbeckia by checking out the USDA zone info for Gustine.

Planting Calendar for Rudbeckia

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

Rudbeckia do ok in moderate cold which tells us that you can plant them just a bit earlier in the year than other plants that might not handle the cold.

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

The last month that you can plant rudbeckia and expect a good harvest is probably October. Any later than that and your rudbeckia may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your rudbeckia indoors.

Last Frost Date

The average date of last frost is February 15 in Gustine. In the coldest months of winter you should expect an average low temperature of 20°F.

Since the USDA zone info for Gustine is an average the actual date of last frost will vary from year to year. Half of the time in Gustine you get surprised by a frost after February 15 so make sure that you are prepared to protect your rudbeckia if you have a late frost.

USDA Zone Info for Gustine

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°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 25°F.

Plants to Grow in Gustine

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