Keep in mind when planting that Green Wave is thought of as hardy, so this plant will survive close to or on freezing temperatures.
Prefers cool. Slow to bolt.
Sow
0.39 inches (1.0 cm) deep with a guideline distance of
7.02 inches (18.0 cm).
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Green Wave is a hardy plant.
This was the 1957 All-American Award winner.