Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Oxnard can be reviewed to estimate when it's a good idea to plant purple coneflower.

Planting Calendar for Purple Coneflower

Frost tolerance for purple coneflower:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Purple Coneflower are barely cold tolerant which means that you can plant them slightly earlier than other frost tender plants.

The earliest that you can plant purple coneflower in Oxnard 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 purple coneflower and expect a good harvest is probably September. You probably don't want to wait any later than that or else your purple coneflower may not have a chance to really do well. You can get started a little bit earlier by starting your purple coneflower indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Oxnard. It might get as low as 30°F during the coldest months of winter.

Since the USDA zone info for Oxnard is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Oxnard there is a last frost after January 31 so just be sure to be ready to protect your purple coneflower if you have a surprise late frost.

USDA Zone Info for Oxnard

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 Oxnard

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