One of the first steps you take when you are estimating 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.

By reviewing the USDA zone info for Newburgh it's possible to determine when it's a good idea to plant marigold.

Planting Calendar for Marigold

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

Since marigold are not cold tolerant it is necessary to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant marigold in Newburgh 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. Any later than that and your marigold may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your marigold indoors.

Last Frost Date

The average date of last frost is April 15 in Newburgh. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Newburgh may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Newburgh you get a frost after April 15 so be sure to be ready to cover your marigold if you have one of those late frosts.

USDA Zone Info for Newburgh

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 Newburgh

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