The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can estimate when it's possible to plant zinnia in Springdale by referring to the USDA zone info.

Planting Calendar for Zinnia

Frost tolerance for zinnia:	Not tolerant of frost.
When to plant:	After the last frost.

Zinnia require warm weather which means that it's necessary to wait until it warms up after the last frost before you can plant them.

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

The last month that you can plant zinnia and expect a good harvest is probably August. If you wait any later than that and your zinnia may not have a chance to grow to maturity. If you are starting your zinnia indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Springdale. You should expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Springdale is an average the actual date of last frost will vary from year to year. Since half of the time in Springdale it frosts late in the year after April 15 be ready to protect your zinnia in the event of a late frost.

USDA Zone Info for Springdale

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 Springdale

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