When to Plant Hollyhocks in Lamar, CO

One of the first steps you take when you are estimating 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.

In Lamar you can estimate when you can plant hollyhocks by referring to the USDA zone info.


Planting Calendar for Hollyhocks

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

Hollyhocks are moderately cold tolerant which tells us that you can plant them earlier than other frost tender plants.

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

The earliest that you can plant hollyhocks in Lamar 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 hollyhocks and expect a good harvest is probably September. Any later than that and your hollyhocks may not have a chance to fully mature. Starting your hollyhocks indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Lamar. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Lamar is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Lamar last frost occurs after April 15 so always be ready to protect your hollyhocks in the event of a surprise late frost.

USDA Zone Info for Lamar

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-10°F
Highest Expected Low-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Lamar

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