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.

In Cottage Grove you can estimate when it's a good idea to plant lunaria by referring to the USDA zone info.

Planting Calendar for Lunaria

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

Lunaria are moderately cold tolerant which means that you can plant them a little bit earlier than other frost tender plants.

The earliest that you can plant lunaria in Cottage Grove 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 lunaria and expect a good harvest is probably September. You probably don't want to wait any later than that or else your lunaria may not have a chance to grow to maturity. Starting your lunaria indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Cottage Grove. In the coldest months of winter you should expect an average low temperature of -20°F.

Since the USDA zone info for Cottage Grove is just an average the actual date of last frost will vary from year to year. Half of the time in Cottage Grove there is a last frost after April 15 so be sure to be ready to protect your lunaria if you have one of those late frosts.

USDA Zone Info for Cottage Grove

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Cottage Grove

You may be interested in your other planting guides for Cottage Grove.