Keep in mind when planting that Crimson Flowered is thought of as hardy, so Crimson Flowered will tend to go dormant or grow slowly over the winter months.
Look to ensure a distance
9.75 inches (25.0 cm) between seeds when sowing - bury at a depth of at least
1.95 inches (5.0 cm) deep.
By our calculations, you should look at sowing Crimson Flowered about 1 days after your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Crimson Flowered is a hardy plant.
This broad bean was on the verge of extinction not so long ago but saved by the Henry Doubleday Research Association (HDRA)