When to Plant Ruby Grass in Zone 1a

One of the first steps you take when you are figuring out your gardening schedule is find your 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.

It's a good idea to figure out when it's the best time to plant ruby grass by using the USDA zone info for Zone 1a.


Planting Calendar for Ruby Grass

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

Ruby Grass do well in some cold which means that you can plant them slightly earlier in the year than more sensitive plants.

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

The earliest that you can plant ruby grass in Zone 1a is June. However, you really should wait until July if you don't want to take any chances.

The last month that you can plant ruby grass and expect a good harvest is probably July. You probably don't want to wait any later than that or else your ruby grass may not have a chance to really do well. You can get started a little bit earlier by starting your ruby grass indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on June 15 in Zone 1a. You should expect an average low temperature of -60°F in the coldest months of winter.

It's important to remember that USDA zone info for Zone 1a is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Zone 1a there is a last frost after June 15 be ready to protect your ruby grass if you have one of those late frosts.

USDA Zone Info for Zone 1a

Here is the info for USDA Zone 1a.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-60°F
Highest Expected Low-55°F

This means that on a really cold year, the coldest it will get is -60°F. On most years you should be prepared to experience lows near -55°F.

Plants to Grow in Zone 1a

You may be interested in your other planting guides for Zone 1a.