Before planting it is a good idea to find your USDA Zone info to determine 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.

In Norristown you can determine when to plant arctotis by using the USDA zone info.

Planting Calendar for Arctotis

Frost tolerance for arctotis:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since arctotis are one of those plants that can tolerate a little bit of cold weather you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant arctotis in Norristown is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant arctotis and expect a good harvest is probably September. If you wait any later than that and your arctotis may not have a chance to fully mature. You can get started a little bit earlier by starting your arctotis indoors.

Last Frost Date

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

Remember that USDA zone info for Norristown is an average and the actual date of last frost will vary from year to year. Half of the time in Norristown there is a last frost after April 15 so just be sure to be ready to cover your arctotis in the event of a late frost.

USDA Zone Info for Norristown

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 Norristown

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