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.

A way of estimating when you can plant bidens is to examine the USDA zone info for Manhattan Beach.

Planting Calendar for Bidens

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

Since bidens require warm weather you really should wait until after the last frost has passed before you can plant them.

The earliest that you can plant bidens in Manhattan Beach 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 couple of weeks earlier by starting your bidens indoors.

Last Frost Date

On average all chance of frost has passed is on January 31 in Manhattan Beach. It might get as low as 35°F during the coldest months of winter.

Remember that USDA zone info for Manhattan Beach may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Manhattan Beach there is a last frost after January 31 so make sure that you are prepared to protect your bidens in the event of one of those late frosts.

USDA Zone Info for Manhattan Beach

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 Manhattan Beach

You may be interested in your other planting guides for Manhattan Beach.