One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By reviewing the USDA zone info for Newark you should be able to determine when you can plant bidens.

Planting Calendar for Bidens

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

Since bidens are not cold tolerant it's necessary to wait until after all chance of frost has passed before you can plant them.

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

Last Frost Date

The average date of last frost is January 31 in Newark. It might get as low as 30°F during the coldest months of winter.

Always keep in mind that USDA zone info for Newark is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Newark it frosts late in the year after January 31 so just be sure to be ready to cover your bidens in the event of one of those late frosts.

USDA Zone Info for Newark

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 Newark

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