When to Plant Cucumbers in Rosemead, CA

One of the first steps you take when you are determining 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.

You can estimate when you can plant cucumbers in Rosemead by reviewing the USDA zone info.


Planting Calendar for Cucumbers

Frost tolerance for cucumbers: Not tolerant of frost.
When to plant: After the last frost.

Cucumbers are not cold tolerant which means that it's important to wait until it warms up after the last frost has passed before you can plant them.

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

The earliest that you can plant cucumbers in Rosemead 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 cucumbers and expect a good harvest is probably September. Any later than that and your cucumbers may not have a chance to grow to maturity. If you are starting your cucumbers indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is January 31 in Rosemead. In the coldest months of winter you should expect an average low temperature of 30°F.

Keep in mind that USDA zone info for Rosemead is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Rosemead it frosts late in the year after January 31 so make sure that you are prepared to cover your cucumbers if you have one of those late frosts.

USDA Zone Info for Rosemead

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 Rosemead

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