The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. 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 calibrachoa in Mukilteo can be determined by checking out the USDA zone info.

Planting Calendar for Calibrachoa

Frost tolerance for calibrachoa:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Calibrachoa tend to make it in mild cold which means that you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant calibrachoa in Mukilteo 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 calibrachoa and expect a good harvest is probably August. You probably don't want to wait any later than that or else your calibrachoa may not have a chance to grow to maturity. If you are starting your calibrachoa indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Mukilteo. It might get as low as 15°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Mukilteo is an average and the actual date of last frost is different every year. Half of the time in Mukilteo last frost occurs after March 15 so make sure that you are ready to protect your calibrachoa in the event of a surprise late frost.

USDA Zone Info for Mukilteo

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 Mukilteo

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