One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Castle Rock you can figure out when it's possible to plant neeps by checking out the USDA zone info.

Planting Calendar for Neeps

Frost tolerance for neeps:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since neeps do not do well in cold weather you need to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant neeps in Castle Rock 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 neeps and expect a good harvest is probably August. You probably don't want to wait any later than that or else your neeps may not have a chance to fully mature. If you are starting your neeps indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Castle Rock is just an average the actual date of last frost is different every year. Half of the time in Castle Rock you get surprised by a frost after April 15 so be sure to be ready to cover your neeps if you have one of those late frosts.

USDA Zone Info for Castle Rock

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 Castle Rock

You may be interested in your other planting guides for Castle Rock.