One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant cucumbers in London should be determined by looking at the USDA zone info.

Planting Calendar for Cucumbers

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

You can not plant cucumbers until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant cucumbers in London is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant cucumbers and expect a good harvest is probably August. You probably don't want to wait any later than that or else your cucumbers may not have a chance to fully mature. 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

In London the average date of last frost happens on April 15. You should expect an average low temperature of -10°F in the coldest months of winter.

Remember that the actual date of last frost is just an average because it is based on the USDA zone info for London and it will vary from year to year. Since half of the time in London you get a frost after April 15 be ready to protect your cucumbers if you have one of those late frosts.

USDA Zone Info for London

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in London

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