Sow at a depth of approx.
0.99 inches (2.54 cm) and aim for a distance of at least
2.92 feet (90.0 cm) between Zucchini plants. Soil temperature should be kept higher than
15°C / 59°F to ensure good germination.
By our calculations, you should look at sowing Κολοκυθάκι about 42 days before your last frost date.
As Κολοκυθάκι is tender, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.
By our calculations, you should look at planting out Κολοκυθάκι about 14 days after your last frost date.