One of the best tools that you have as gardeners to help us figure out 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.

You should be able to figure out when it's a good idea to plant rudbeckia by using the USDA zone info for Medford.

Planting Calendar for Rudbeckia

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

Rudbeckia are moderately cold tolerant which tells us that you can get them planted earlier than other frost tender plants.

The earliest that you can plant rudbeckia in Medford 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 rudbeckia and expect a good harvest is probably September. Any later than that and your rudbeckia may not have a chance to fully mature. You can get started a few weeks earlier by starting your rudbeckia indoors.

Last Frost Date

The average date of last frost is March 15 in Medford. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Medford is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Medford last frost occurs after March 15 so just be sure to be ready to protect your rudbeckia if you have one of those late frosts.

USDA Zone Info for Medford

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Medford

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