Before planting it is a good idea to find your USDA Zone info to determine 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.

The first opportunity to plant blue throatwort in Calabasas can be determined by using the USDA zone info.

Planting Calendar for Blue Throatwort

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

Blue Throatwort do not do well in cold weather which tells us that it's important to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant blue throatwort in Calabasas 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 blue throatwort and expect a good harvest is probably September. Any later than that and your blue throatwort may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your blue throatwort indoors.

Last Frost Date

In Calabasas the average date of last frost happens on January 31. You can expect an average low temperature of 35°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Calabasas is not always accurate and the actual date of last frost is different every year. Half of the time in Calabasas it frosts late in the year after January 31 so make sure that you are prepared to cover your blue throatwort in the event of a surprise late frost.

USDA Zone Info for Calabasas

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Calabasas

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