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.

You can figure out when it's the best time to plant alternanthera in Cottage Grove by using the USDA zone info.

Planting Calendar for Alternanthera

Frost tolerance for alternanthera:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since alternanthera require warm weather it is important to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant alternanthera in Cottage Grove 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 alternanthera and expect a good harvest is probably August. Any later than that and your alternanthera may not have a chance to fully mature. Starting your alternanthera indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Cottage Grove. It might get as low as 15°F during the coldest months of winter.

Just be sure to remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Cottage Grove and it is different every year. Since half of the time in Cottage Grove it frosts late in the year after March 15 be ready to cover your alternanthera if you have a surprise late frost.

USDA Zone Info for Cottage Grove

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Cottage Grove

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