frostdate name logo in white
frostdate name logo in white

When to Plant Mexican Feather Grass in Castle Rock, CO

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.

It's possible to estimate when it's possible to plant mexican feather grass by reviewing the USDA zone info for Castle Rock.


Planting Calendar for Mexican Feather Grass

Frost tolerance for mexican feather grass: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

You can plant mexican feather grass a little bit earlier in the year because they do well in moderate cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant mexican feather grass
Possibly ok, but a risky time to plant mexican feather grass
Probably not a good time to plant mexican feather grass

The earliest that you can plant mexican feather grass in Castle Rock 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 mexican feather grass and expect a good harvest is probably September. You probably don't want to wait any later than that or else your mexican feather grass may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your mexican feather grass indoors.

Last Frost Date

In Castle Rock 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 Castle Rock may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Castle Rock it frosts late in the year after April 15 so just be sure to be ready to protect your mexican feather grass in the event of a surprise 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.