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.

The USDA zone info for Costa Mesa should be reffered to in order to figure out when to plant monkey flower.

Planting Calendar for Monkey Flower

Frost tolerance for monkey flower:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Monkey Flower require warm weather which means that it is important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant monkey flower in Costa Mesa 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 monkey flower and expect a good harvest is probably September. Any later than that and your monkey flower may not have a chance to grow to maturity. You can get started a little bit earlier by starting your monkey flower indoors.

Last Frost Date

In Costa Mesa the average date of last frost happens on January 31. It might get as low as 35°F during the coldest months of winter.

Since the USDA zone info for Costa Mesa is an average the actual date of last frost will vary from year to year. Since half of the time in Costa Mesa there is a last frost after January 31 be ready to cover your monkey flower if you have one of those late frosts.

USDA Zone Info for Costa Mesa

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 Costa Mesa

You may be interested in your other planting guides for Costa Mesa.