Before planting it is a good idea to find your USDA Zone info to estimate 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 common way of making a decision about when it's possible to plant blue throatwort is to refer to the USDA zone info for Telford.

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 means that it is important to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant blue throatwort in Telford 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. Any later than that and your blue throatwort may not have a chance to grow to maturity. If you are starting your blue throatwort indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Telford. You should expect an average low temperature of -5°F in the coldest months of winter.

Remember that USDA zone info for Telford is an average and the actual date of last frost will vary from year to year. Half of the time in Telford it frosts late in the year after April 15 so make sure that you are ready to protect your blue throatwort in the event of a late frost.

USDA Zone Info for Telford

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 Telford

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