When to Plant Creeping Phlox in Sidney, MT

The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when to plant creeping phlox in Sidney by using the USDA zone info.

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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 very cold tolerant you can plant them quite a bit 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 Sidney 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 creeping phlox and expect a good harvest is probably August. If you wait any later than that and your creeping phlox may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your creeping phlox indoors.

Last Frost Date

The average date of last frost is May 15 in Sidney. In the coldest months of winter you can expect an average low temperature of -30°F.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Sidney and it will vary from year to year. Half of the time in Sidney it frosts late in the year after May 15 so just be sure to be ready to cover your creeping phlox if you have a surprise late frost.

USDA Zone Info for Sidney

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-30°F
Highest Expected Low-25°F

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

Plants to Grow in Sidney

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