The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Leominster can be read to estimate when it's a good idea to plant roses.

Planting Calendar for Roses

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

Roses do well in moderate cold which tells us that you can get them planted earlier than other frost tender plants.

The earliest that you can plant roses in Leominster 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 roses and expect a good harvest is probably September. You probably don't want to wait any later than that or else your roses may not have a chance to really do well. Starting your roses indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Leominster the average date of last frost happens on April 15. You can expect an average low temperature of -15°F in the coldest months of winter.

Keep in mind that USDA zone info for Leominster is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Leominster last frost occurs after April 15 be ready to cover your roses if you have one of those late frosts.

USDA Zone Info for Leominster

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Leominster

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