When to Plant Hosta in Middleton, ID

Before planting it is a good idea to find your USDA Zone info to estimate 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 earliest that you can plant hosta in Middleton should be determined by using the USDA zone info.


Planting Calendar for Hosta

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

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

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 Middleton 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. Starting your hosta indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Middleton. In the coldest months of winter you should expect an average low temperature of 0°F.

Since the USDA zone info for Middleton is just an average the actual date of last frost is different every year. Since half of the time in Middleton last frost occurs after April 15 be ready to cover your hosta if you have a surprise late frost.

USDA Zone Info for Middleton

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low0°F
Highest Expected Low5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Middleton

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