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 best time to plant geranium in Marlow should be figured out by reviewing the USDA zone info.

Planting Calendar for Geranium

Frost tolerance for geranium:	Not tolerant of frost.
When to plant:	After the last frost.

Since geranium are not cold tolerant you have to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant geranium in Marlow 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 grow to maturity. If you are starting your geranium indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Marlow. You can expect an average low temperature of 5°F in the coldest months of winter.

Since the USDA zone info for Marlow is an average the actual date of last frost changes from year to year. Half of the time in Marlow last frost occurs after April 15 so be sure to be ready to protect your geranium in the event of a late frost.

USDA Zone Info for Marlow

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°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 10°F.

Plants to Grow in Marlow

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