Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Monroe you can estimate when it's the best time to plant erysimum by checking out the USDA zone info.

Planting Calendar for Erysimum

Frost tolerance for erysimum:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Erysimum can survive in moderate cold which means that you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant erysimum in Monroe is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant erysimum and expect a good harvest is probably September. If you wait any later than that and your erysimum may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your erysimum indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Monroe. You should expect an average low temperature of 5°F in the coldest months of winter.

Since the USDA zone info for Monroe may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Monroe you get surprised by a frost after April 15 so always be ready to cover your erysimum in the event of a surprise late frost.

USDA Zone Info for Monroe

Here is the info for USDA Zone 7b.

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

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

Plants to Grow in Monroe

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