When can I plant Geranium in Zone 6b

The USDA Zone info is a great tool for gardeners to help us determine our gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

A way of getting a good idea when it's the best time to plant geranium is to look at the USDA zone info for Zone 6b.


Planting Calendar for Geranium

Frost tolerance for geranium: Not tolerant of frost.
When you should plant them: After the last frost when the weather gets warmer.

Geranium require warm weather which tells us that you really should wait until it warms up after all chance of frost has passed before you can plant them.

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

The earliest that you can plant geranium in Zone 6b is April. However, you really should wait until May if you don't want to take any chances.

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

Last Frost Date

The average date of last frost is April 15 in Zone 6b. We can expect an average low temperature of -5°F in the coldest months of winter.

Remember that our actual date of last frost is an average because it is based on the USDA zone info for Zone 6b and it will vary from year to year. Since half of the time in Zone 6b we get surprised by a frost after April 15 be ready to cover your geranium if we have a surprise late frost.

USDA Zone Info for Zone 6b

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 Zone 6b

You may be interested in our other planting guides for Zone 6b.