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

In Gridley you can figure out when it's a good idea to plant hemerocallis by checking out the USDA zone info.

Planting Calendar for Hemerocallis

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

Hemerocallis do well in some cold which tells us that you can plant them a little earlier in the year than other plants that might not handle the cold.

The earliest that you can plant hemerocallis in Gridley 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 hemerocallis and expect a good harvest is probably October. If you wait any later than that and your hemerocallis may not have a chance to really do well. You can get started a little bit earlier by starting your hemerocallis indoors.

Last Frost Date

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

Always keep in mind that USDA zone info for Gridley is just an average and the actual date of last frost changes from year to year. Half of the time in Gridley you get surprised by a frost after February 15 so be sure to be ready to protect your hemerocallis if you have a surprise late frost.

USDA Zone Info for Gridley

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 Gridley

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