Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By checking out the USDA zone info for London you will be able to determine when to plant tagetes.

Planting Calendar for Tagetes

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

You can not plant tagetes until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant tagetes 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 tagetes and expect a good harvest is probably August. Any later than that and your tagetes may not have a chance to fully mature. Starting your tagetes indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in London. It might get as low as -5°F during the coldest months of winter.

Always keep in mind that USDA zone info for London is not always accurate and the actual date of last frost 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 tagetes in the event of a late frost.

USDA Zone Info for London

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in London

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