One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of estimating when to plant bunny tails grass is to refer to the USDA zone info for Helena.

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.

Since bunny tails grass are one of those plants that can tolerate a tiny bit of cold weather you can plant them just a tiny bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant bunny tails grass in Helena 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 bunny tails grass and expect a good harvest is probably August. You probably don't want to wait any later than that or else your bunny tails grass may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your bunny tails grass indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Helena. In the coldest months of winter you should expect an average low temperature of -25°F.

Just be sure to remember that USDA zone info for Helena is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Helena you get surprised by a frost after May 15 so always be ready to protect your bunny tails grass in the event of a surprise late frost.

USDA Zone Info for Helena

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Helena

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