One of the best tools that you have as gardeners to help us estimate 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.

The first opportunity to plant bittercress in Kenmore can be figured out by using the USDA zone info.

Planting Calendar for Bittercress

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

Bittercress do well in very little cold which tells us that you can plant them slightly earlier in the year than other plants that might not handle the cold.

The earliest that you can plant bittercress in Kenmore 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 bittercress and expect a good harvest is probably August. You probably don't want to wait any later than that or else your bittercress may not have a chance to fully mature. You can get started a little bit earlier by starting your bittercress indoors.

Last Frost Date

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

Always keep in mind that USDA zone info for Kenmore is not always accurate and the actual date of last frost is different every year. Half of the time in Kenmore it frosts late in the year after March 15 so make sure that you are prepared to protect your bittercress if you have a surprise late frost.

USDA Zone Info for Kenmore

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 Kenmore

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