One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to determine when it's the best time to plant creeping phlox by checking out the USDA zone info for London.

Planting Calendar for Creeping Phlox

Frost tolerance for creeping phlox:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Creeping Phlox can survive in cold weather which means that you can plant them quite a bit earlier in the year than other frost tender plants.

The earliest that you can plant creeping phlox in London is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant creeping phlox and expect a good harvest is probably September. You probably don't want to wait any later than that or else your creeping phlox may not have a chance to fully mature. You can get started a little bit earlier by starting your creeping phlox indoors.

Last Frost Date

On average the last frost is on April 15 in London. You can expect an average low temperature of -10°F in the coldest months of winter.

It's important to remember that USDA zone info for London is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in London it frosts late in the year after April 15 be ready to cover your creeping phlox in the event of a late frost.

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.