The USDA Zone info is a great tool for gardeners to help us determine 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.

The best time to plant steirodiscus in Highland should be estimated by referring to the USDA zone info.

Planting Calendar for Steirodiscus

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

Steirodiscus can survive in mild cold which means that you can plant them slightly earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant steirodiscus in Highland 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 steirodiscus and expect a good harvest is probably September. Any later than that and your steirodiscus may not have a chance to grow to maturity. If you are starting your steirodiscus indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Highland the average date of last frost happens on February 15. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Highland is an average the actual date of last frost is different every year. Since half of the time in Highland last frost occurs after February 15 be ready to protect your steirodiscus if you have a late frost.

USDA Zone Info for Highland

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Highland

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