One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to figure out when it's the best time to plant chamomile by using the USDA zone info for San Juan.

Planting Calendar for Chamomile

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

Since chamomile do well in moderate cold you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant chamomile in San Juan is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant chamomile and expect a good harvest is probably October. You probably don't want to wait any later than that or else your chamomile may not have a chance to grow to maturity. If you are starting your chamomile indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in San Juan. You should expect an average low temperature of 25°F in the coldest months of winter.

Just be sure to remember that USDA zone info for San Juan is an average and the actual date of last frost is different every year. Half of the time in San Juan it frosts late in the year after February 15 so make sure that you are prepared to cover your chamomile if you have one of those late frosts.

USDA Zone Info for San Juan

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in San Juan

You may be interested in your other planting guides for San Juan.