When to Plant Chamomile in Harlan, IA

One of the first steps you take when you are getting a good idea 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.

The USDA zone info for Harlan can be reviewed to figure out when it's the best time to plant chamomile.


Planting Calendar for Chamomile

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

Chamomile are one of those plants that can tolerate a little bit of cold weather which means that you can plant them earlier than other frost tender plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant chamomile
Possibly ok, but a risky time to plant chamomile
Probably not a good time to plant chamomile

The earliest that you can plant chamomile in Harlan 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. Any later than that and your chamomile may not have a chance to grow to maturity. Starting your chamomile indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Harlan. You can expect an average low temperature of -20°F in the coldest months of winter.

Just be sure to remember that the actual date of last frost is an average because it is based on the USDA zone info for Harlan and it will vary from year to year. Since half of the time in Harlan you get surprised by a frost after April 15 be ready to cover your chamomile in the event of a late frost.

USDA Zone Info for Harlan

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Harlan

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