The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Windsor should be read to determine when it's the best time to plant chrysanthemum.

Planting Calendar for Chrysanthemum

Frost tolerance for chrysanthemum:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since chrysanthemum require warm weather you need to wait until after all chance of frost has passed before you can plant them.

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

Last Frost Date

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

Since the USDA zone info for Windsor may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Windsor there is a last frost after February 15 so make sure that you are ready to protect your chrysanthemum if you have a surprise late frost.

USDA Zone Info for Windsor

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 Windsor

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