One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Mercer Island you can estimate when it's the best time to plant marguerite daisy by using the USDA zone info.

Planting Calendar for Marguerite Daisy

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

It's a bad idea to plant marguerite daisy until after the last frost has passed because they require warm weather.

The earliest that you can plant marguerite daisy in Mercer Island 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 marguerite daisy and expect a good harvest is probably August. If you wait any later than that and your marguerite daisy may not have a chance to grow to maturity. If you are starting your marguerite daisy indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Just be sure to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Mercer Island and it will vary from year to year. Half of the time in Mercer Island there is a last frost after March 15 so just be sure to be ready to cover your marguerite daisy if you have a surprise late frost.

USDA Zone Info for Mercer 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 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 Mercer Island

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