The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when to plant marigold in Ogden by using the USDA zone info.

Planting Calendar for Marigold

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

Marigold are not cold tolerant which tells us that you need to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant marigold in Ogden 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 really do well. You can get started a little bit earlier by starting your marigold indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Ogden. It might get as low as 0°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Ogden may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Ogden you get surprised by a frost after April 15 so just be sure to be ready to cover your marigold if you have a surprise late frost.

USDA Zone Info for Ogden

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Ogden

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