Keep in mind when planting that Dark Green Italian is thought of as hardy, so this plant will survive close to or on freezing temperatures. Ideally plant in loamy and potting mix soil and try to keep the ph of your soil between the range of 5.6 and 6.0 as Dark Green Italian likes to be in weakly acidic soil.
Try to aim for a seed spacing of at least
9.91 inches (25.4 cm) and sow at a depth of around
0.25 inches (0.64 cm). Soil temperature should be kept higher than
10°C / 50°F to ensure good germination.
By our calculations, you should look at sowing Dark Green Italian about 35 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Dark Green Italian is a hardy plant.