When to Plant Asters in Bainbridge Island, WA

One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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.

In Bainbridge Island you can determine when it's possible to plant asters by referring to the USDA zone info.


Planting Calendar for Asters

Frost tolerance for asters: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Since asters are moderately cold tolerant you can plant them a bit earlier in the year than more sensitive plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant asters
Possibly ok, but a risky time to plant asters
Probably not a good time to plant asters

The earliest that you can plant asters in Bainbridge Island 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 asters and expect a good harvest is probably September. If you wait any later than that and your asters may not have a chance to grow to maturity. Starting your asters indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

It's important to remember that USDA zone info for Bainbridge Island may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Bainbridge Island it frosts late in the year after March 15 be ready to protect your asters if you have a surprise late frost.

USDA Zone Info for Bainbridge Island

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 Low15°F
Highest Expected Low20°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 Bainbridge Island

You may be interested in your other planting guides for Bainbridge Island.