RadicchioCichorium intybus var. foliosum

Radicchio

Radicchio

1. Cichorium intybus convar. foliosum

1. Italian chicory
2. Red chicory

1. Leaf chicory

1. Radicchio di Chioggia
2. Radicchio Rosso di Treviso
3. Radicchio di Verona

1. Radicchio

1. Radicio

1. NameCicerbita alpina

   Languagela

   Shared with

   1. Alpen-Milchlattich

   Clarification

   Incorrectly mapped in provided data; Cicerbita alpina is the Alpine Sow-thistle, not Radicchio.

1. Radicchio
2. Chicory
3. Bitter greens

1. Tracheophyta
2. Angiospermae
3. Eudicotidae
4. Asterids

Aster family

1. Cichorium endivia
2. Cichorium intybus var. sativum

1. Leaves
2. Head

Radicchio is an essential component of Italian cuisine, bringing bold bitterness and vibrant color to the autumn garden. As a member of the chicory family, it is closely related to common chicory and endive. It is particularly valued for its cold tolerance, which allows for harvests deep into the winter months.

1. Taskplanting

   Label

   Spring planting

   Prioritymedium

   Months

   1. 4
   2. 5

   Conditionfrost_free

   Estimated effortmedium

   Notes

   Watch out for slug damage on young plants.

Sunny to semi-shaded

Not strictly necessary

Tolerates cooler autumn weather very well.

Medium-heavy, humus-rich loamy soil

Good drainage required; avoid waterlogging.

Regularly; never let the soil dry out completely.

Tap water or rainwater suitable.

Base fertilization with compost; light organic liquid fertilizer in summer if needed.

Good preceding crops are early potatoes or peas.

1. Peas
2. Beans
3. Early potatoes
4. Cereals

1. Heavy feeders next year
2. Leek
3. Onions

1. Slugs
2. Sucking insects

1. Fungal diseases
2. Rot pathogens

1. Wide planting distances for good ventilation.
2. Ensure consistent irrigation.
3. Avoid cold stimulus in young plants.

Regularly check the heart of the plant for rot or aphids.

1. Slugsclerotinia_rot

   Severityhigh

   Conditions

   1. High soil moisture
   2. Cool temperatures

   Affected parts

   1. Base
   2. Lower leaves

   Prevention

   1. Do not plant too deep
   2. Observe crop rotation

   Organic control

   1. Remove and dispose of infested plants immediately

1. Symptom

   Plant forms a long stem instead of a head

   Possible causes

   1. bolting

   First checks

   1. Check sowing time
   2. Check for temperature extremes

1. Germination
2. Leaf development
3. Head formation
4. Dormancy (for winter cultivation)
5. Bolting (in the second year)
6. Flowering
7. Seed maturation

Radicchio is biennial; vegetative development (heading) occurs in the first year, followed by the generative phase in the second year.

June to August (in the second year)

Sky blue

August to January

150–400 g per plant

Single harvest per plant upon head formation.

1. Firmness of the head under light pressure
2. Reaching variety-specific size
3. Typical color expression (often after first frost)

Cut roots just above the soil; remove unsightly outer leaves.

Cool and humid at 0-1°C.

Short to medium-term storage

Up to 4 weeks in the refrigerator; longer if stored in a root cellar/clamp.

1. Fresh consumption
2. Heeling-in with root ball
3. Grilling/Roasting

High, valued for its bitter notes.

Wash, remove the tough core; soaking briefly in lukewarm water reduces bitterness.

1. Salads
2. Risotto
3. Grilled vegetables
4. Pasta dishes

1. Leaves
2. Flowers
3. Root (roasted as coffee substitute)

1. Tough core (inedibly fibrous)

Non-toxic; the bitter substances (intybin) aid digestion.

Very common as a winter salad.

Medium to high

Plants must be overwintered; allow to flower in the second year. Beware of cross-pollination with wild chicory.

1. Late bolting
2. Good head closure
3. Intense color

Radicchio is a herbaceous biennial vegetable and not a woody crop; classic grafting or woody pruning rules do not apply.

Flowering in its second year, it provides an important food source for wild bees with its sky-blue blossoms.

Now is the peak time for radicchio harvest.