It’s a tricky decision as to when to sow these. Sow them too early and they start twisting around each other, sow them too late, and you won’t get a decent crop.

Over the years I have figured out that the best time to sow them inside is 3-4 weeks before I plan on planting them outside (early to mid June). Remember they’re “tender crops”, which means they don’t like the frost. So figure out when your last frost date is and work back from there.