When can I plant Astilbe in Hillview, KY

Before planting it is a good idea to find our USDA Zone info to figure out our garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

You should be able to estimate when it's the best time to plant astilbe by using the USDA zone info for Hillview.


Planting Calendar for Astilbe

Frost tolerance for astilbe: Tolerant of a very small amount of frost.
When you should plant them: Up to 3 weeks before last frost.

Since astilbe do ok in moderate cold you can plant them slightly earlier in the year than plants that are more sensitive to the cold.

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

The earliest that you can plant astilbe in Hillview is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant astilbe and expect a good harvest is probably August. You probably don't want to wait any later than that or else your astilbe may not have a chance to grow to maturity. If you are starting your astilbe indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Hillview. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Hillview may not be accurate from year to year our actual date of last frost changes from year to year. Since half of the time in Hillview there is a last frost after April 15 be ready to protect your astilbe if we have a late frost.

USDA Zone Info for Hillview

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-5°F
Highest Expected Low0°F

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

Plants to Grow in Hillview

You may be interested in our other planting guides for Hillview.