When to Plant Yarrow in London, KY

One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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 earliest that you can plant yarrow in London can be determined by checking out the USDA zone info.


Planting Calendar for Yarrow

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

Yarrow are very cold tolerant which tells us that you can get them planted much earlier than more sensitive plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant yarrow
Possibly ok, but a risky time to plant yarrow
Probably not a good time to plant yarrow

The earliest that you can plant yarrow 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 yarrow and expect a good harvest is probably September. If you wait any later than that and your yarrow may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your yarrow indoors.

Last Frost Date

On average the last frost has passed is on April 15 in London. In the coldest months of winter you should expect an average low temperature of -5°F.

Since the USDA zone info for London is just an average the actual date of last frost is different every year. Half of the time in London you get a frost after April 15 so be sure to be ready to cover your yarrow 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 Low0°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.