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.

The USDA zone info for Castle Rock can be used to estimate when it's a good idea to plant bunny tails grass.

Planting Calendar for Bunny Tails grass

Frost tolerance for bunny tails grass:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Bunny Tails grass do ok in moderate cold which tells us that you can start planting them slightly earlier than plants that are more sensitive to the cold.

The earliest that you can plant bunny tails grass in Castle Rock is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant bunny tails grass and expect a good harvest is probably August. Any later than that and your bunny tails grass may not have a chance to really do well. You can get started a couple of weeks earlier by starting your bunny tails grass indoors.

Last Frost Date

In Castle Rock the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Castle Rock is an average the actual date of last frost changes from year to year. Half of the time in Castle Rock last frost occurs after April 15 so be sure to be ready to cover your bunny tails grass in the event of a late frost.

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.