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When to Plant Creeping Phlox in Marlborough, MA

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.

By referring to the USDA zone info for Marlborough it's possible to figure out when you can plant creeping phlox.


Planting Calendar for Creeping Phlox

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

Since creeping phlox are one of those plants that can tolerate quite a bit of cold weather you can plant them much earlier in the year than other plants that might not handle the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant creeping phlox
Possibly ok, but a risky time to plant creeping phlox
Probably not a good time to plant creeping phlox

The earliest that you can plant creeping phlox in Marlborough 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 creeping phlox and expect a good harvest is probably September. You probably don't want to wait any later than that or else your creeping phlox may not have a chance to fully mature. Starting your creeping phlox indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Marlborough. In the coldest months of winter you should expect an average low temperature of -10°F.

Remember that USDA zone info for Marlborough may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Marlborough you get a frost after April 15 so make sure that you are prepared to protect your creeping phlox in the event of one of those late frosts.

USDA Zone Info for Marlborough

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 Marlborough

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