Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of figuring out when it's a good idea to plant chrysanthemum is to examine the USDA zone info for Ogdensburg.

Planting Calendar for Chrysanthemum

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

It's a bad idea to plant chrysanthemum until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant chrysanthemum in Ogdensburg is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant chrysanthemum and expect a good harvest is probably August. Any later than that and your chrysanthemum may not have a chance to really do well. Starting your chrysanthemum indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Ogdensburg. In the coldest months of winter you should expect an average low temperature of -25°F.

It's important to remember that USDA zone info for Ogdensburg is not always accurate and the actual date of last frost is different every year. Half of the time in Ogdensburg there is a last frost after May 15 so make sure that you are ready to protect your chrysanthemum if you have one of those late frosts.

USDA Zone Info for Ogdensburg

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 Ogdensburg

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