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

The USDA zone info for Garden Grove should be looked at to estimate when it's the best time to plant echinacea.

Planting Calendar for Echinacea

Frost tolerance for echinacea:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Echinacea do ok in moderate cold which tells us that you can get them planted just a bit earlier than more sensitive plants.

The earliest that you can plant echinacea in Garden Grove 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 echinacea and expect a good harvest is probably September. Any later than that and your echinacea may not have a chance to really do well. Starting your echinacea indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is January 31 in Garden Grove. You should expect an average low temperature of 35°F in the coldest months of winter.

Remember that USDA zone info for Garden Grove is an average and the actual date of last frost is different every year. Half of the time in Garden Grove there is a last frost after January 31 so make sure that you are prepared to protect your echinacea in the event of a late frost.

USDA Zone Info for Garden Grove

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Garden Grove

You may be interested in your other planting guides for Garden Grove.