Radicchio is a cool-season crop. It can be grown in early spring and in fall.
Sow radicchio seeds immediately inside the garden 2 to 4 weeks quicker than the rest frost in spring. To set out transplants get began seeds indoors 4 to 5 weeks quicker than transplanting. Set transplants inside the garden 4 weeks quicker than to 2 weeks after the rest frost. Transplants will give you a head get began on the season.
Make succession plantings each and every 2 to a few weeks until temperatures begin to warmth in late spring then sow again in late summer season for harvest in cool autumn local weather.
Increase radicchio in moisture-retentive, humus-rich soil. If temperatures warmth you can mulch them with aged compost to stick the vegetation from bolting.
Radicchio matures in about 85 days. Start to harvest outer leaves as soon as they are usable size. This cut-and-come-again method will lengthen the harvest. The flavor and texture of leaves are perfect when leaves are however more youthful and mild.
Radicchio seed sowing dates
(The ones dates are for the Northern Hemisphere)
| Average date of the rest frost | Planting dates |
| Jan. 30 | Jan. 1-Mar. 1 |
| Feb. 8 | Jan. 1-Mar. 1 |
| Feb. 18 | Jan. 15-Mar. 1 |
| Feb. 28 | Feb. 1-Mar. 1 |
| Mar. 10 | Feb. 15-Mar. 15 |
| Mar. 20 | Mar. 1-Apr. 1 |
| Mar. 30 | Mar. 10-Apr. 10 |
| Apr. 10 | Mar. 15-Apr. 15 |
| Apr. 20 | Mar. 25-Apr. 15 |
| Apr. 30 | Apr. 1-Would in all probability 1 |
| Would in all probability 10 | Apr. 15-Would in all probability 15 |
| Would in all probability 20 | Would in all probability 1-30 |
| Would in all probability 30 | Would in all probability 1-30 |
| June 10 | Would in all probability 15-June 1 |
Radicchio planting details
- Sowing depth: ¼ inch (.6 cm)
- Space between vegetation after thinning: 6 inches (15cm)
- Days to sprout: 5-7
- Days to harvest: 40 days or as briefly since the leaves are safe to eat
- Storage period: 1-2 weeks
- Seeds consistent with 100 row ft: ¼ ounce (7 grams)
- Yield consistent with 100 row ft: 100 heads
- Prompt varieties: Astro, Runway, Rocket, Italian Wild Rustic, Treviso
Further about planting radicchio:
Increase Radicchio
Radicchio Seed Starting Tips
