The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant cucumbers in San Juan can be figured out by referring to the USDA zone info.

Planting Calendar for Cucumbers

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

It's probably a bad idea to plant cucumbers until after the last frost because they require warm weather.

The earliest that you can plant cucumbers in San Juan 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 grow to maturity. You can get started a few weeks earlier by starting your cucumbers indoors.

Last Frost Date

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

It's important to remember that USDA zone info for San Juan is just an average and the actual date of last frost is different every year. Since half of the time in San Juan it frosts late in the year after February 15 be ready to protect your cucumbers if you have a late frost.

USDA Zone Info for San Juan

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 Low	25°F
Highest Expected Low	30°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 San Juan

You may be interested in your other planting guides for San Juan.