One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to determine when it's possible to plant rhubarb by using the USDA zone info for Roseville.

Planting Calendar for Rhubarb

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

Since rhubarb do well in moderate cold you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant rhubarb 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 rhubarb and expect a good harvest is probably September. You probably don't want to wait any later than that or else your rhubarb may not have a chance to grow to maturity. Starting your rhubarb indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Since the USDA zone info for Roseville 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 Roseville last frost occurs after April 15 so just be sure to be ready to cover your rhubarb in the event of 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.