One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to figure out when it's a good idea to plant saxifraga by reviewing the USDA zone info for Montgomery.

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 moderate cold which tells us that you can plant them slightly earlier than other frost tender plants.

The earliest that you can plant saxifraga in Montgomery 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 grow to maturity. Starting your saxifraga indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Montgomery. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Montgomery may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Montgomery last frost occurs after April 15 so always be ready to protect your saxifraga in the event of one of those late frosts.

USDA Zone Info for Montgomery

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Montgomery

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