One of the best tools that you have as gardeners to help us determine 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 Kelso you can figure out when it's possible to plant chamomile by checking out the USDA zone info.

Planting Calendar for Chamomile

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

Chamomile are moderately cold tolerant which means that you can get them planted earlier than more sensitive plants.

The earliest that you can plant chamomile in Kelso 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 chamomile and expect a good harvest is probably September. You probably don't want to wait any later than that or else your chamomile may not have a chance to really do well. Starting your chamomile indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Kelso. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Kelso may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Kelso you get a frost after March 15 be ready to protect your chamomile in the event of a surprise late frost.

USDA Zone Info for Kelso

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 Kelso

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