Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of estimating when it's a good idea to plant rhubarb is to use the USDA zone info for Guadalupe.

Planting Calendar for Rhubarb

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

Rhubarb are one of those plants that can tolerate a little bit of cold weather which tells us that you can plant them earlier than more sensitive plants.

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

The last month that you can plant rhubarb and expect a good harvest is probably October. You probably don't want to wait any later than that or else your rhubarb may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your rhubarb indoors.

Last Frost Date

On average the last frost has passed is on February 15 in Guadalupe. It might get as low as 25°F during the coldest months of winter.

Keep in mind that USDA zone info for Guadalupe 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 Guadalupe you get a frost after February 15 so be sure to be ready to cover your rhubarb in the event of a surprise late frost.

USDA Zone Info for Guadalupe

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Guadalupe

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