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

The USDA zone info for Gustine can be reviewed to figure out when it's the best time to plant schizanthus.

Planting Calendar for Schizanthus

Frost tolerance for schizanthus:	Not tolerant of frost.
When to plant:	After the last frost has passed.

You should not plant schizanthus until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant schizanthus in Gustine 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 schizanthus and expect a good harvest is probably September. Any later than that and your schizanthus may not have a chance to grow to maturity. If you are starting your schizanthus indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Gustine the average date of last frost happens on February 15. It might get as low as 20°F during the coldest months of winter.

Remember that USDA zone info for Gustine is just an average and 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 be sure to be ready to cover your schizanthus if you have one of those late frosts.

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.