One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of estimating when to plant roses is to look at the USDA zone info for Broomfield.

Planting Calendar for Roses

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

You can plant roses a little bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant roses in Broomfield 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. If you wait any later than that and your roses may not have a chance to fully mature. You can get started a few weeks earlier by starting your roses indoors.

Last Frost Date

In Broomfield the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -10°F.

Just be sure to remember that USDA zone info for Broomfield is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Broomfield there is a last frost after April 15 be ready to cover your roses in the event of a surprise late frost.

USDA Zone Info for Broomfield

Here is the info for USDA Zone 6a.

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

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Broomfield

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