Look to ensure a distance
11.7 inches (30.0 cm) between Juhr Spider 05 seeds when sowing to make sure your seedlings have enough space.
By our calculations, you should look at sowing Juhr Spider 05 about 42 days before your last frost date.
As Juhr Spider 05 is hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.