Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Hummelstown it's possible to figure out when it's the best time to plant nasturtium.

Planting Calendar for Nasturtium

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

Since nasturtium require warm weather you really should wait until after the last frost has passed before you can plant them.

The earliest that you can plant nasturtium in Hummelstown 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 nasturtium and expect a good harvest is probably August. Any later than that and your nasturtium may not have a chance to grow to maturity. Starting your nasturtium indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Remember that USDA zone info for Hummelstown may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Hummelstown it frosts late in the year after April 15 be ready to cover your nasturtium in the event of one of those late frosts.

USDA Zone Info for Hummelstown

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 Hummelstown

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