The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Tustin you can determine when you can plant strawflowers by using the USDA zone info.

Planting Calendar for Strawflowers

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

You can plant strawflowers slightly earlier in the year because they do ok in moderate cold.

The earliest that you can plant strawflowers in Tustin is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant strawflowers and expect a good harvest is probably September. You probably don't want to wait any later than that or else your strawflowers may not have a chance to really do well. If you are starting your strawflowers indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is January 31 in Tustin. You should expect an average low temperature of 30°F in the coldest months of winter.

Keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Tustin and it can change quite a bit from year to year. Since half of the time in Tustin you get a frost after January 31 be ready to cover your strawflowers in the event of a surprise late frost.

USDA Zone Info for Tustin

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Tustin

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