- 1). Buy Prime Jim from your local gardening supply store or nursery. Prime Jims don't ship well, so they must be transported from a local store directly to your home.
- 2). Inspect the Prime Jim plants for signs of stress, like wilt or browning leaves. These may be signs that the Prime Jims have been held in storage.
- 3). Check the average fall temperatures for your state before purchasing; temperatures exceeding 85 degrees Fahrenheit in late summer and fall will reduce fruit quality and yield. Prime Jims tend not to grow well in the Deep South and very northern states.
- 4). Find out from your local agricultural extension office which pests and diseases are prevalent in your state. According the The University of Arkansas, Prime Jims avoid double blossom/rosette, a common blackberry disease. They have also been tested for their resistance to the other frequently seen blackberry diseases: orange rust (no cases have been reported) and anthracnose (there is a small chance of this disease). However, they may not have been tested for diseases that occur in your area.
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