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

You should be able to figure out when it's possible to plant sanvitalia by using the USDA zone info for Granbury.

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 one of those plants that can tolerate a tiny bit of cold weather you can plant them just a tiny bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant sanvitalia in Granbury 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. If you wait any later than that and your sanvitalia may not have a chance to fully mature. You can get started a few weeks earlier by starting your sanvitalia indoors.

Last Frost Date

In Granbury the average date of last frost happens on March 15. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Granbury 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 Granbury it frosts late in the year after March 15 so make sure that you are ready to cover your sanvitalia if you have one of those late frosts.

USDA Zone Info for Granbury

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Granbury

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