One of the best tools that you have as gardeners to help us estimate 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 USDA zone info for Napa should be reviewed to estimate when it's the best time to plant transvaal daisy.

Planting Calendar for Transvaal Daisy

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

Since transvaal daisy do ok in moderate cold you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant transvaal daisy in Napa 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 transvaal daisy and expect a good harvest is probably September. If you wait any later than that and your transvaal daisy may not have a chance to really do well. Starting your transvaal daisy indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Napa the average date of last frost happens on February 15. In the coldest months of winter you should expect an average low temperature of 25°F.

Always keep in mind that USDA zone info for Napa is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Napa it frosts late in the year after February 15 so just be sure to be ready to protect your transvaal daisy in the event of a late frost.

USDA Zone Info for Napa

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Napa

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