Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Great Falls you can figure out when to plant garden orache by referring to the USDA zone info.

Planting Calendar for Garden Orache

Frost tolerance for garden orache:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Garden Orache are one of those plants that can tolerate a little bit of cold weather which means that you can plant them a little bit earlier than plants that are more sensitive to the cold.

The earliest that you can plant garden orache in Great Falls 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 garden orache and expect a good harvest is probably August. If you wait any later than that and your garden orache may not have a chance to grow to maturity. Starting your garden orache indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Great Falls the average date of last frost happens on May 15. You can expect an average low temperature of -30°F in the coldest months of winter.

Remember that USDA zone info for Great Falls is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Great Falls you get surprised by a frost after May 15 so make sure that you are prepared to protect your garden orache if you have one of those late frosts.

USDA Zone Info for Great Falls

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Great Falls

You may be interested in your other planting guides for Great Falls.