Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to figure out when it's a good idea to plant impatiens by looking at the USDA zone info for Sequim.

Planting Calendar for Impatiens

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

Impatiens require warm weather which means that you need to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant impatiens in Sequim 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. If you wait any later than that and your impatiens may not have a chance to really do well. If you are starting your impatiens indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Sequim. You can expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Sequim is an average the actual date of last frost changes from year to year. Half of the time in Sequim last frost occurs after March 15 so always be ready to cover your impatiens if you have one of those late frosts.

USDA Zone Info for Sequim

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Sequim

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