Johnny's Radicchio Planting Program

Johnny's RADICCHIO Planting Program

Radicchio Succession Planting & Season Extension

There are several types of radicchio, also known as Italian chicory (Cichorium intybus, Asteraceae). When different varieties are planted, their varying cultural characteristics enable growers to produce this crop across the seasons.

Johnny's Radicchio Planting Program is specifically designed to take the guesswork out of succession-planting the different varieties, allowing you to maximize your harvest window. To achieve a successful extended harvest, choose varieties by their transplanting and harvesting slots, as depicted in our chart below, as well as by their days to maturity.

Additional distinguishing features to consider as you formulate your planting program include each variety's open-pollinated or hybrid status; availability of organic or conventional seed; and the type of radicchio, names for which reflect selection and preservation of various head forms and coloration characteristics by families and farmers in different regions of Northern Italy — round rosso di Chioggia, speckled variegata di Luisia and variegata di Castelfranco, and tall rosso di Treviso and sugarloaf types, among others.

Sowing & Harvesting Period
Cool/
Spring
Warm/
Summer
Cool/
Fall
Cold/
Winter
Transplanting
Harvesting
Features
Type Days to Maturity Notes
Round Chioggia 55 Extra-early; smaller heads for denser plantings. Open-pollinated. Conventional seed.
Sowing & Harvesting Period
Cool/
Spring
Warm/
Summer
Cool/
Fall
Cold/
Winter
Transplanting
Transplanting
Harvesting
Harvesting
Features
Type Days to Maturity Note
Variegato di Lusia 60 Deep red- and pink-spotted heads for year-round harvest. Open-pollinated. Conventional seed.
Sowing & Harvesting Period
Cool/
Spring
Warm/
Summer
Cool/
Fall
Cold/
Winter
Transplanting
Transplanting
Harvesting
Harvesting
Features
Type Days to Maturity Note
Round Chioggia 65 Excellent uniformity and high yield potential for summer harvest. Hybrid. Conventional seed or conventional seed with NOP-compliant pelleting.
Sowing & Harvesting Period
Cool/
Spring
Warm/
Summer
Cool/
Fall
Cold/
Winter
Transplanting
Harvesting
Features
Type Days to Maturity Notes
Round Chioggia 65 Uniform, dense, bright-purple heads for fall and winter harvest. Hybrid. Organic or conventional seed.
Sowing & Harvesting Period
Cool/
Spring
Warm/
Summer
Cool/
Fall
Cold/
Winter
Transplanting
Harvesting
Features
Type Days to Maturity Notes
Tall Treviso 66 Suitable for all cropping seasons. Hybrid. Organic or conventional seed.
Sowing & Harvesting Period
Cool/
Spring
Warm/
Summer
Cool/
Fall
Cold/
Winter
Transplanting
Transplanting
Harvesting
Harvesting
Features
Type Days to Maturity Note
Sugarloaf 68 Can be grown right through the season but performs best in spring and fall. Hybrid. Organic seed.