Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Colusa you can estimate when it's possible to plant transvaal daisy by referring to the USDA zone info.

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 slightly earlier in the year than other plants that might not handle the cold.

The earliest that you can plant transvaal daisy in Colusa 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. You probably don't want to wait any later than that or else your transvaal daisy may not have a chance to really do well. You can get started a few weeks earlier by starting your transvaal daisy indoors.

Last Frost Date

In Colusa the average date of last frost happens on February 15. You can expect an average low temperature of 25°F in the coldest months of winter.

Remember that USDA zone info for Colusa is an average and the actual date of last frost is different every year. Since half of the time in Colusa there is a last frost after February 15 be ready to protect your transvaal daisy in the event of a surprise late frost.

USDA Zone Info for Colusa

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 Colusa

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