When to Plant Hosta in Spring Grove, IL

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

The USDA zone info for Spring Grove should be looked at to estimate when it's possible to plant hosta.


Planting Calendar for Hosta

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

Hosta do ok in some cold which means that you can plant them a little bit earlier in the year than other frost tender plants.

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

The earliest that you can plant hosta in Spring Grove 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 hosta and expect a good harvest is probably September. You probably don't want to wait any later than that or else your hosta may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your hosta indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Spring Grove. It might get as low as -15°F during the coldest months of winter.

Keep in mind that USDA zone info for Spring Grove is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Spring Grove it frosts late in the year after April 15 be ready to cover your hosta in the event of a late frost.

USDA Zone Info for Spring Grove

Here is the info for USDA Zone 5b.

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

Plants to Grow in Spring Grove

You may be interested in your other planting guides for Spring Grove.