When to Plant Blue Throatwort in Garden City, MI

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.

One way of making a decision about when it's a good idea to plant blue throatwort is to consult the USDA zone info for Garden City.


Planting Calendar for Blue Throatwort

Frost tolerance for blue throatwort: Not tolerant of frost.
When to plant: After the last frost when the weather gets warmer.

Since blue throatwort require warm weather it is important to wait until after the last frost has passed before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant blue throatwort
Possibly ok, but a risky time to plant blue throatwort
Probably not a good time to plant blue throatwort

The earliest that you can plant blue throatwort in Garden City 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 grow to maturity. You can get started a little bit earlier by starting your blue throatwort indoors.

Last Frost Date

The average date of last frost is April 15 in Garden City. It might get as low as -10°F during the coldest months of winter.

Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Garden City and it is different every year. Half of the time in Garden City there is a last frost after April 15 so make sure that you are ready to protect your blue throatwort if you have a surprise late frost.

USDA Zone Info for Garden City

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-10°F
Highest Expected Low-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Garden City

You may be interested in your other planting guides for Garden City.