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.

The first chance to plant echinacea in Roy should be figured out by referring to the USDA zone info.

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.

You can plant echinacea slightly earlier in the year because they do ok in moderate cold.

The earliest that you can plant echinacea in Roy is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant echinacea and expect a good harvest is probably August. If you wait any later than that and your echinacea may not have a chance to grow to maturity. You can get started a little bit earlier by starting your echinacea indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Roy. You should expect an average low temperature of 0°F in the coldest months of winter.

Keep in mind that USDA zone info for Roy is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Roy you get surprised by a frost after April 15 be ready to protect your echinacea if you have a late frost.

USDA Zone Info for Roy

Here is the info for USDA Zone 7a.

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

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Roy

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