One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

By referring to the USDA zone info for Sugar Grove it's a good idea to determine when you can plant phlox.

Planting Calendar for Phlox

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

Phlox do well in moderate cold which means that you can get them planted earlier than plants that are more sensitive to the cold.

The earliest that you can plant phlox in Sugar Grove 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 phlox and expect a good harvest is probably September. Any later than that and your phlox may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your phlox indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Sugar Grove. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Sugar Grove is just an average the actual date of last frost will vary from year to year. Since half of the time in Sugar Grove last frost occurs after April 15 be ready to cover your phlox in the event of one of those late frosts.

USDA Zone Info for Sugar 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 Sugar Grove

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