The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of determining when to plant rudbeckia is to examine the USDA zone info for Laredo.

Planting Calendar for Rudbeckia

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

Since rudbeckia are moderately cold tolerant you can plant them just a bit earlier in the year than more sensitive plants.

The earliest that you can plant rudbeckia in Laredo 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 few weeks earlier by starting your rudbeckia indoors.

Last Frost Date

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

It's important to remember that USDA zone info for Laredo is an average and the actual date of last frost will vary from year to year. Half of the time in Laredo there is a last frost after February 15 so always be ready to protect your rudbeckia in the event of one of those late frosts.

USDA Zone Info for Laredo

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 Laredo

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