One of the first steps you take when you are figuring out your gardening schedule is find your 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.

The USDA zone info for Pittsburg should be looked at to determine 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.

Since roses are moderately cold tolerant you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant roses in Pittsburg is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant roses and expect a good harvest is probably October. If you wait any later than that and your roses may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your roses indoors.

Last Frost Date

The average date of last frost is February 15 in Pittsburg. You should expect an average low temperature of 25°F in the coldest months of winter.

Keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Pittsburg and it can change quite a bit from year to year. Since half of the time in Pittsburg you get surprised by a frost after February 15 be ready to protect your roses if you have a surprise late frost.

USDA Zone Info for Pittsburg

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Pittsburg

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