One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Downingtown it's possible to figure out when it's possible to plant nemesia.

Planting Calendar for Nemesia

Frost tolerance for nemesia:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since nemesia do not do well in cold weather you really should wait until after all chance of frost has passed before you can plant them.

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

Last Frost Date

On average the last frost is on April 15 in Downingtown. You can expect an average low temperature of -5°F in the coldest months of winter.

Remember that USDA zone info for Downingtown is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Downingtown you get surprised by a frost after April 15 be ready to cover your nemesia in the event of a surprise late frost.

USDA Zone Info for Downingtown

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 Low	0°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 Downingtown

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