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 determine when it's possible to plant alyssum by checking out the USDA zone info for Bremerton.

Planting Calendar for Alyssum

Frost tolerance for alyssum:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

You can plant alyssum much earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

The earliest that you can plant alyssum in Bremerton is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant alyssum and expect a good harvest is probably September. Any later than that and your alyssum may not have a chance to fully mature. You can get started a little bit earlier by starting your alyssum indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Bremerton. In the coldest months of winter you can expect an average low temperature of 15°F.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Bremerton and it changes from year to year. Half of the time in Bremerton last frost occurs after March 15 so make sure that you are ready to cover your alyssum in the event of one of those late frosts.

USDA Zone Info for Bremerton

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 Bremerton

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