The USDA Zone info is a great tool for gardeners to help us estimate 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.

By looking at the USDA zone info for Palmer it's possible 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 one of those plants that can tolerate a little bit of cold weather you can plant them just a bit earlier in the year than plants that are more sensitive to the cold.

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

The last month that you can plant roses and expect a good harvest is probably August. Any later than that and your roses may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your roses indoors.

Last Frost Date

On average all chance of frost has passed is on May 15 in Palmer. In the coldest months of winter you can expect an average low temperature of -25°F.

Just be sure to remember that USDA zone info for Palmer is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Palmer it frosts late in the year after May 15 be ready to protect your roses if you have a surprise late frost.

USDA Zone Info for Palmer

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°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 -20°F.

Plants to Grow in Palmer

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