When to Plant Cucumbers in Zone 9b

One of the first steps you take when you are making a decision about 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.

The best time to plant cucumbers in Zone 9b can be determined by looking at the USDA zone info.

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Planting Calendar for Cucumbers

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

You really shouldn't plant cucumbers until after the last frost because they require warm weather.

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 Zone 9b 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. If you wait any later than that and your cucumbers may not have a chance to fully mature. Starting your cucumbers indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Zone 9b. You can expect an average low temperature of 25°F in the coldest months of winter.

Remember that USDA zone info for Zone 9b may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Zone 9b you get surprised by a frost after February 15 be ready to cover your cucumbers if you have one of those late frosts.

USDA Zone Info for Zone 9b

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 Zone 9b

You may be interested in your other planting guides for Zone 9b.