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

One way of figuring out when it's possible to plant impatiens is to look at the USDA zone info for Pasco.

Planting Calendar for Impatiens

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

It's probably a bad idea to plant impatiens until after the last frost because they require warm weather.

The earliest that you can plant impatiens in Pasco is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant impatiens and expect a good harvest is probably August. Any later than that and your impatiens may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your impatiens indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Pasco. In the coldest months of winter you should expect an average low temperature of 0°F.

Since the USDA zone info for Pasco is not always accurate the actual date of last frost is different every year. Since half of the time in Pasco there is a last frost after April 15 be ready to protect your impatiens in the event of one of those late frosts.

USDA Zone Info for Pasco

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Pasco

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