The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. 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 determine when it's a good idea to plant anchusa by reviewing the USDA zone info.

Planting Calendar for Anchusa

Frost tolerance for anchusa:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Anchusa do well in quite a bit of cold which means that you can plant them much earlier in the year than more sensitive plants.

The earliest that you can plant anchusa 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 anchusa and expect a good harvest is probably September. Any later than that and your anchusa may not have a chance to fully mature. If you are starting your anchusa indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

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

Remember that USDA zone info for Spring Valley may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Spring Valley you get a frost after April 15 so always be ready to protect your anchusa if you have a surprise late frost.

USDA Zone Info for Spring Valley

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Spring Valley

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