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.

One way of determining when it's a good idea to plant myosotis is to check out the USDA zone info for Hillsborough.

Planting Calendar for Myosotis

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

You can plant myosotis a little bit earlier in the year because they do well in moderate cold.

The earliest that you can plant myosotis in Hillsborough 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. Any later than that and your myosotis may not have a chance to fully mature. You can get started a few weeks earlier by starting your myosotis indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Hillsborough. You can expect an average low temperature of 5°F in the coldest months of winter.

Since the USDA zone info for Hillsborough may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Hillsborough it frosts late in the year after April 15 be ready to cover your myosotis in the event of one of those late frosts.

USDA Zone Info for Hillsborough

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°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 10°F.

Plants to Grow in Hillsborough

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