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

You can figure out when to plant chrysanthemums in Coos Bay by using the USDA zone info.

Planting Calendar for Chrysanthemums

Frost tolerance for chrysanthemums:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Chrysanthemums tend to make it in very little cold which means that you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant chrysanthemums in Coos Bay 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 chrysanthemums and expect a good harvest is probably September. If you wait any later than that and your chrysanthemums may not have a chance to grow to maturity. If you are starting your chrysanthemums indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Coos Bay. You should expect an average low temperature of 20°F in the coldest months of winter.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Coos Bay and it can change quite a bit from year to year. Since half of the time in Coos Bay it frosts late in the year after February 15 be ready to cover your chrysanthemums in the event of a late frost.

USDA Zone Info for Coos Bay

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Coos Bay

You may be interested in your other planting guides for Coos Bay.