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 sanvitalia in Brownsville should be determined by referring to the USDA zone info.

Planting Calendar for Sanvitalia

Frost tolerance for sanvitalia:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since sanvitalia are barely cold tolerant you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant sanvitalia in Brownsville 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 sanvitalia and expect a good harvest is probably August. Any later than that and your sanvitalia may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your sanvitalia indoors.

Last Frost Date

In Brownsville the average date of last frost happens on April 15. It might get as low as 5°F during the coldest months of winter.

Always keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Brownsville and it will vary from year to year. Since half of the time in Brownsville it frosts late in the year after April 15 be ready to cover your sanvitalia in the event of a late frost.

USDA Zone Info for Brownsville

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Brownsville

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