One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. 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 asters in Marion by reviewing the USDA zone info.

Planting Calendar for Asters

Frost tolerance for asters:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Asters do well in moderate cold which means that you can plant them earlier than more sensitive plants.

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

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Marion. You can expect an average low temperature of -5°F in the coldest months of winter.

Keep in mind that USDA zone info for Marion is an average and the actual date of last frost is different every year. Half of the time in Marion you get a frost after April 15 so be sure to be ready to protect your asters in the event of a late frost.

USDA Zone Info for Marion

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Marion

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