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When to Plant Myosotis in Costa Mesa, CA

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.

It's a good idea to estimate when it's a good idea to plant myosotis by using the USDA zone info for Costa Mesa.


Planting Calendar for Myosotis

Frost tolerance for myosotis: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Myosotis are one of those plants that can tolerate a little bit of cold weather which means that you can plant them a little bit earlier than other plants that might not handle the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant myosotis
Possibly ok, but a risky time to plant myosotis
Probably not a good time to plant myosotis

The earliest that you can plant myosotis in Costa Mesa is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant myosotis and expect a good harvest is probably October. Any later than that and your myosotis may not have a chance to grow to maturity. You can get started a little bit earlier by starting your myosotis indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Costa Mesa. You can expect an average low temperature of 35°F in the coldest months of winter.

It's important to remember that USDA zone info for Costa Mesa may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Costa Mesa last frost occurs after January 31 so make sure that you are ready to protect your myosotis in the event of 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 Low35°F
Highest Expected Low40°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.