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.

In Yorba Linda you can figure out when it's a good idea to plant marigold by checking out the USDA zone info.

Planting Calendar for Marigold

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

Marigold are not cold tolerant which means that you really should wait until it warms up after the last frost before you can plant them.

The earliest that you can plant marigold in Yorba Linda 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 marigold and expect a good harvest is probably September. Any later than that and your marigold may not have a chance to really do well. You can get started a little bit earlier by starting your marigold indoors.

Last Frost Date

On average the last frost is on January 31 in Yorba Linda. In the coldest months of winter you should expect an average low temperature of 30°F.

Since the USDA zone info for Yorba Linda is an average the actual date of last frost is different every year. Since half of the time in Yorba Linda there is a last frost after January 31 be ready to protect your marigold in the event of a surprise late frost.

USDA Zone Info for Yorba Linda

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 Yorba Linda

You may be interested in your other planting guides for Yorba Linda.