When to Plant Aegopodium in Johnstown, CO

The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Johnstown you will be able to estimate when it's possible to plant aegopodium.


Planting Calendar for Aegopodium

Frost tolerance for aegopodium: Very tolerant of frost.
When to plant: Up to 7 weeks before last frost.

You can plant aegopodium a lot earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

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

The earliest that you can plant aegopodium in Johnstown 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 aegopodium and expect a good harvest is probably September. If you wait any later than that and your aegopodium may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your aegopodium indoors.

Last Frost Date

In Johnstown the average date of last frost happens on April 15. It might get as low as -15°F during the coldest months of winter.

It's important to remember that USDA zone info for Johnstown may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Johnstown last frost occurs after April 15 be ready to protect your aegopodium if you have a surprise late frost.

USDA Zone Info for Johnstown

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 Johnstown

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