One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to estimate when it's the best time to plant marigold by checking out the USDA zone info for Sedona.

Planting Calendar for Marigold

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

Marigold do not do well in cold weather which means that it's important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant marigold in Sedona 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. You probably don't want to wait any later than that or else 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 all chance of frost has passed is on March 15 in Sedona. In the coldest months of winter you should expect an average low temperature of 15°F.

Keep in mind that USDA zone info for Sedona is not always accurate and the actual date of last frost changes from year to year. Half of the time in Sedona you get a frost after March 15 so always be ready to protect your marigold if you have one of those late frosts.

USDA Zone Info for Sedona

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 Sedona

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