One of the best tools that you have as gardeners to help us figure out 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.

One way of figuring out when to plant erysimum is to look at the USDA zone info for Roseville.

Planting Calendar for Erysimum

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

Erysimum tend to make it in moderate cold which means that you can plant them a little bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant erysimum in Roseville 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. Any later than that and your erysimum may not have a chance to really do well. You can get started a little bit earlier by starting your erysimum indoors.

Last Frost Date

The average date of last frost is April 15 in Roseville. In the coldest months of winter you should expect an average low temperature of -5°F.

Keep in mind that USDA zone info for Roseville is just an average and the actual date of last frost is different every year. Since half of the time in Roseville you get surprised by a frost after April 15 be ready to protect your erysimum if you have one of those late frosts.

USDA Zone Info for Roseville

Here is the info for USDA Zone 6b.

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

Plants to Grow in Roseville

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