Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of figuring out when it's the best time to plant scarlet pimpernels is to refer to the USDA zone info for Half Moon Bay.

Planting Calendar for Scarlet Pimpernels

Frost tolerance for scarlet pimpernels:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since scarlet pimpernels are barely cold tolerant you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant scarlet pimpernels in Half Moon Bay 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 scarlet pimpernels and expect a good harvest is probably September. Any later than that and your scarlet pimpernels may not have a chance to really do well. You can get started a little bit earlier by starting your scarlet pimpernels indoors.

Last Frost Date

In Half Moon Bay the average date of last frost happens on January 31. In the coldest months of winter you should expect an average low temperature of 30°F.

Remember that USDA zone info for Half Moon Bay may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Half Moon Bay you get surprised by a frost after January 31 so always be ready to cover your scarlet pimpernels in the event of one of those late frosts.

USDA Zone Info for Half Moon Bay

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Half Moon Bay

You may be interested in your other planting guides for Half Moon Bay.