One of the best tools that you have as gardeners to help us figure out 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.

By looking at the USDA zone info for Bristol you will be able to estimate when you can plant myosotis.

Planting Calendar for Myosotis

Frost tolerance for myosotis:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Myosotis can survive in some cold which means that you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant myosotis in Bristol 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 myosotis and expect a good harvest is probably September. If you wait any later than that and your myosotis may not have a chance to grow to maturity. If you are starting your myosotis indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Bristol. In the coldest months of winter you can expect an average low temperature of 0°F.

Keep in mind that USDA zone info for Bristol may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Bristol last frost occurs after April 15 be ready to protect your myosotis in the event of a surprise late frost.

USDA Zone Info for Bristol

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Bristol

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