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 you can plant roses is to consult the USDA zone info for Williams.

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 moderately cold tolerant.

The earliest that you can plant roses in Williams 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 fully mature. Starting your roses indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Williams. It might get as low as 25°F during the coldest months of winter.

Remember that USDA zone info for Williams is an average and the actual date of last frost is different every year. Since half of the time in Williams you get a frost after February 15 be ready to protect your roses in the event of a surprise late frost.

USDA Zone Info for Williams

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 Williams

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