Radicchio – Grumolo Rosso


Packet (~400 seeds)


Grumolo Rosso Radicchio is a Verona-type radicchio that is praised for its unmatched beauty and cold hardiness. Indeed, it is stunning to witness these deep burgundy rosettes developing through the heart of winter, getting more vivid and filled-out with each passing week.  Leaves are slightly bitter, getting less so with each frost. They are perfect eaten alone in salads or mixed with other hardy chicories, spinach, and kales.  We sow our radicchios indoors in July rather than in the Spring because we prefer to harvest the heads after a light frost- for a fuller head and increased sweetness.  However radicchios can be sown in Spring and will form a lovely rosette.  Thanks to their strong regrowth they make a great cut and come again leafy green any time of the season.

Days to Maturity: 80
Latin name: Chicorium intybus
Life cycle for seed saving: Biennial

Planting Instructions:
Plant Grumolo Rosso Radicchio in July. Optimal soil temp for germination is 70-85°. Planting depth: 1/8”. For full heads – start indoors 4 weeks before desired transplant then plant at 12-18” spacing or direct seed every inch and thin to same spacing.

All of our seed is Non-GMO and Certified Organic by Washington State Department of Agriculture. We grow the majority of our varieties here at Deep Harvest Farm on Whidbey Island while we purchase the rest from other small, organic Northwest seed growers. Finally, all of our offerings are open-pollinated (OP) so that you too can save and share seed from these plants!