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.

In Hillsboro you can estimate when to plant arctotis by reviewing 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.

Arctotis can survive in moderate cold which tells us that you can plant them just a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant arctotis in Hillsboro 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. You probably don't want to wait any later than that or else your arctotis may not have a chance to really do well. Starting your arctotis indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Hillsboro. In the coldest months of winter you can expect an average low temperature of 10°F.

Keep in mind that USDA zone info for Hillsboro is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Hillsboro last frost occurs after March 15 so always be ready to protect your arctotis if you have a late frost.

USDA Zone Info for Hillsboro

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Hillsboro

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