One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to figure out when to plant blue throatwort by reviewing the USDA zone info for Manlius.

Planting Calendar for Blue Throatwort

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

Blue Throatwort require warm weather which tells us that you must wait until it warms up after the last frost before you can plant them.

The earliest that you can plant blue throatwort in Manlius is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant blue throatwort and expect a good harvest is probably August. If you wait any later than that and your blue throatwort may not have a chance to really do well. You can get started a couple of weeks earlier by starting your blue throatwort indoors.

Last Frost Date

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

Remember that USDA zone info for Manlius may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Manlius there is a last frost after April 15 so make sure that you are ready to cover your blue throatwort if you have one of those late frosts.

USDA Zone Info for Manlius

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Manlius

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