Sow
0.25 inches (0.64 cm) deep with a guideline distance of
0.98 inches (2.5 cm). Soil temperature should be kept higher than
20°C / 68°F to ensure good germination.
By our calculations, you should look at sowing Cal Wonder Orange about 32 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Cal Wonder Orange is a tender plant.
Californian Wonder Orange