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

The USDA zone info for Novi should be reffered to in order to estimate when you can plant zinnia.

Planting Calendar for Zinnia

Frost tolerance for zinnia:	Not tolerant of frost.
When to plant:	After the last frost.

Since zinnia require warm weather you need to wait until after the last frost before you can plant them.

The earliest that you can plant zinnia in Novi 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 zinnia and expect a good harvest is probably August. You probably don't want to wait any later than that or else your zinnia may not have a chance to fully mature. If you are starting your zinnia indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Novi. It might get as low as -10°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Novi may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Novi it frosts late in the year after April 15 so just be sure to be ready to cover your zinnia if you have a late frost.

USDA Zone Info for Novi

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Novi

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