One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of estimating when to plant dahlia is to consult the USDA zone info for Jenkintown.

Planting Calendar for Dahlia

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

You can not plant dahlia until after all chance of frost has passed because they require warm weather.

The earliest that you can plant dahlia in Jenkintown 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 dahlia and expect a good harvest is probably August. If you wait any later than that and your dahlia may not have a chance to really do well. You can get started a few weeks earlier by starting your dahlia indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Jenkintown. You can expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Jenkintown is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Jenkintown there is a last frost after April 15 so make sure that you are ready to cover your dahlia in the event of a surprise late frost.

USDA Zone Info for Jenkintown

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 Low	0°F
Highest Expected Low	5°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 Jenkintown

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