When to Plant Geranium in Mount Rainier, MD

The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Mount Rainier you can estimate when it's possible to plant geranium by looking at the USDA zone info.

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Planting Calendar for Geranium

Frost tolerance for geranium: Not tolerant of frost.
When to plant: After all chance of frost has passed.

Geranium require warm weather which means that it's important to 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 Mount Rainier 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. If you wait any later than that and your geranium may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your geranium indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Mount Rainier. It might get as low as 0°F during the coldest months of winter.

It's important to remember that USDA zone info for Mount Rainier is an average and the actual date of last frost is different every year. Half of the time in Mount Rainier there is a last frost after April 15 so always be ready to protect your geranium if you have one of those late frosts.

USDA Zone Info for Mount Rainier

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 Mount Rainier

You may be interested in your other planting guides for Mount Rainier.