When to Plant Monarda in Union City, CA

One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to figure out when it's a good idea to plant monarda by checking out the USDA zone info for Union City.


Planting Calendar for Monarda

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

You can plant monarda a bit earlier in the year because they are one of those plants that can tolerate a tiny bit of cold weather.

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

The earliest that you can plant monarda in Union City 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 monarda and expect a good harvest is probably September. You probably don't want to wait any later than that or else your monarda may not have a chance to fully mature. If you are starting your monarda indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Union City the average date of last frost happens on January 31. It might get as low as 30°F during the coldest months of winter.

Remember that USDA zone info for Union City is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Union City last frost occurs after January 31 be ready to cover your monarda in the event of a late frost.

USDA Zone Info for Union City

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 Low30°F
Highest Expected Low35°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 Union City

You may be interested in your other planting guides for Union City.