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

In Twin Lakes you can figure out when you can plant marigold by reviewing the USDA zone info.

Planting Calendar for Marigold

Frost tolerance for marigold:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since marigold are not cold tolerant it is important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant marigold in Twin Lakes 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 marigold and expect a good harvest is probably August. If you wait any later than that and your marigold may not have a chance to fully mature. If you are starting your marigold indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Twin Lakes. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Twin Lakes is just an average the actual date of last frost will vary from year to year. Half of the time in Twin Lakes there is a last frost after April 15 so always be ready to protect your marigold in the event of a late frost.

USDA Zone Info for Twin Lakes

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°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 -10°F.

Plants to Grow in Twin Lakes

You may be interested in your other planting guides for Twin Lakes.