One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant black eyed susans in Edna can be figured out by checking out the USDA zone info.

Planting Calendar for Black Eyed Susans

Frost tolerance for black eyed susans:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You should not plant black eyed susans until after the last frost because they require warm weather.

The earliest that you can plant black eyed susans in Edna 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 black eyed susans and expect a good harvest is probably September. Any later than that and your black eyed susans may not have a chance to really do well. If you are starting your black eyed susans indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Edna the average date of last frost happens on February 15. You can expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Edna may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Edna last frost occurs after February 15 so always be ready to protect your black eyed susans if you have a late frost.

USDA Zone Info for Edna

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 Edna

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