One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of getting a good idea when it's a good idea to plant asparagus fern is to examine the USDA zone info for Greeley.

Planting Calendar for Asparagus Fern

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

You should not plant asparagus fern until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant asparagus fern in Greeley 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 asparagus fern and expect a good harvest is probably August. If you wait any later than that and your asparagus fern may not have a chance to grow to maturity. Starting your asparagus fern indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Greeley. You can expect an average low temperature of -15°F in the coldest months of winter.

Just be sure to remember that the actual date of last frost is an average because it is based on the USDA zone info for Greeley and it is different every year. Half of the time in Greeley last frost occurs after April 15 so just be sure to be ready to cover your asparagus fern if you have a surprise late frost.

USDA Zone Info for Greeley

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 Greeley

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