One of the first steps you take when you are estimating 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.

The first opportunity to plant impatiens in King City can be determined by looking at the USDA zone info.

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 it's necessary to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant impatiens in King City 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 grow to maturity. You can get started a few weeks earlier by starting your impatiens indoors.

Last Frost Date

On average the last frost has passed is on February 15 in King City. You can expect an average low temperature of 20°F in the coldest months of winter.

Keep in mind that USDA zone info for King City is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in King City last frost occurs after February 15 be ready to protect your impatiens if you have a late frost.

USDA Zone Info for King City

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 Low	20°F
Highest Expected Low	25°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 King City

You may be interested in your other planting guides for King City.