When is the best time to plant catawaba grapes seeds?

The best time to plant Catawba grape seeds is in the spring, after the last frost has passed and soil temperatures have warmed to about 60°F (15°C). This timing allows the seeds to germinate and establish roots during the growing season. Additionally, starting seeds indoors about 6-8 weeks before the last frost can give them a head start before transplanting them outdoors.