One of the best tools that you have as gardeners to help us determine 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 Spring Valley you can figure out when to plant twinspur by looking at the USDA zone info.

Planting Calendar for Twinspur

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

You can plant twinspur just a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant twinspur in Spring Valley 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 twinspur and expect a good harvest is probably September. If you wait any later than that and your twinspur may not have a chance to grow to maturity. Starting your twinspur indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Spring Valley. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Spring Valley is not always accurate the actual date of last frost will vary from year to year. Half of the time in Spring Valley there is a last frost after April 15 so always be ready to protect your twinspur if you have a surprise late frost.

USDA Zone Info for Spring Valley

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 Spring Valley

You may be interested in your other planting guides for Spring Valley.