When to Plant Scaevola in Union City, CA

One of the best tools that you have as gardeners to help us determine 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.

The USDA zone info for Union City can be reffered to in order to figure out when you can plant scaevola.


Planting Calendar for Scaevola

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

Since scaevola are not cold tolerant you really should wait until after the last frost before you can plant them.

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

The earliest that you can plant scaevola 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 scaevola and expect a good harvest is probably September. If you wait any later than that and your scaevola may not have a chance to grow to maturity. Starting your scaevola indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is January 31 in Union City. You can expect an average low temperature of 30°F in the coldest months of winter.

Since the USDA zone info for Union City may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Union City you get surprised by a frost after January 31 be ready to cover your scaevola 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.