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.

One way of determining when it's the best time to plant saxifraga is to look at the USDA zone info for Spring Grove.

Planting Calendar for Saxifraga

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

Saxifraga do ok in very little cold which tells us that you can plant them just a tiny bit earlier in the year than more sensitive plants.

The earliest that you can plant saxifraga in Spring Grove 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 saxifraga and expect a good harvest is probably August. Any later than that and your saxifraga may not have a chance to really do well. You can get started a little bit earlier by starting your saxifraga indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Spring Grove. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Spring Grove may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Spring Grove you get a frost after April 15 be ready to protect your saxifraga in the event of a surprise late frost.

USDA Zone Info for Spring Grove

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 Grove

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