When to Plant Cucumbers in Norco, CA

Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant cucumbers in Norco can be estimated by looking at 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 you really should 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 Norco is March. However, you really should wait until April 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 really do well. 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

On average the last frost has passed is on February 15 in Norco. In the coldest months of winter you should expect an average low temperature of 25°F.

Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Norco and it is different every year. Half of the time in Norco it frosts late in the year after February 15 so make sure that you are prepared to protect your cucumbers in the event of a late frost.

USDA Zone Info for Norco

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)February 15
Average Date of First Frost (fall)December 15
Lowest Expected Low25°F
Highest Expected Low30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Norco

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