When to Plant Lupine in Webster City, IA

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

A way of getting a good idea when you can plant lupine is to consult the USDA zone info for Webster City.


Planting Calendar for Lupine

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

You can plant lupine a little earlier in the year because they are moderately cold tolerant.

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

The earliest that you can plant lupine in Webster City 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 lupine and expect a good harvest is probably September. Any later than that and your lupine may not have a chance to really do well. You can get started a little bit earlier by starting your lupine indoors.

Last Frost Date

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

Since the USDA zone info for Webster City is not always accurate the actual date of last frost is different every year. Since half of the time in Webster City there is a last frost after April 15 be ready to protect your lupine in the event of one of those late frosts.

USDA Zone Info for Webster City

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 Webster City

You may be interested in your other planting guides for Webster City.