Before planting it is a good idea to find your USDA Zone info to figure out 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.

In Bothell you can figure out when to plant carrots by referring to the USDA zone info.

Planting Calendar for Carrots

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

Since carrots do well in moderate cold you can plant them a little earlier in the year than other plants that might not handle the cold.

The earliest that you can plant carrots in Bothell 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 carrots and expect a good harvest is probably September. You probably don't want to wait any later than that or else your carrots may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your carrots indoors.

Last Frost Date

On average the last frost is on March 15 in Bothell. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Bothell is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Bothell you get surprised by a frost after March 15 be ready to protect your carrots in the event of a surprise late frost.

USDA Zone Info for Bothell

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 Bothell

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