When to Plant Impatiens in Jackson, CA

One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can estimate when it's possible to plant impatiens in Jackson by referring to the USDA zone info.

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Planting Calendar for Impatiens

Frost tolerance for impatiens: Not tolerant of frost.
When to plant: After all chance of frost has passed.

Impatiens are not cold tolerant which means that you must wait until it warms up after the last frost has passed before you can plant them.

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

The earliest that you can plant impatiens in Jackson 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 impatiens and expect a good harvest is probably September. If you wait any later than that and your impatiens may not have a chance to fully mature. If you are starting your impatiens indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Jackson the average date of last frost happens on February 15. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for Jackson is an average the actual date of last frost will vary from year to year. Half of the time in Jackson it frosts late in the year after February 15 so be sure to be ready to protect your impatiens in the event of a late frost.

USDA Zone Info for Jackson

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)February 15
Average Date of First Frost (fall)December 15
Lowest Expected Low20°F
Highest Expected Low25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Jackson

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