One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of determining when to plant bidens is to consult the USDA zone info for Monterey Park.

Planting Calendar for Bidens

Frost tolerance for bidens:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Bidens do not do well in cold weather which tells us that you have to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant bidens in Monterey Park 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 bidens and expect a good harvest is probably September. If you wait any later than that and your bidens may not have a chance to grow to maturity. You can get started a little bit earlier by starting your bidens indoors.

Last Frost Date

The average date of last frost is January 31 in Monterey Park. In the coldest months of winter you can expect an average low temperature of 30°F.

Just be sure to remember that USDA zone info for Monterey Park is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Monterey Park you get a frost after January 31 so just be sure to be ready to protect your bidens if you have a late frost.

USDA Zone Info for Monterey Park

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 Monterey Park

You may be interested in your other planting guides for Monterey Park.