Soil & potting mix
Best soil for Radicchio 'Rossa di Verona' (Cichorium intybus var. foliosum 'Rossa di Verona')
Also called Verona radicchio, round red chicory.
More about radicchio 'rossa di verona'
About Radicchio 'Rossa di Verona'
Cichorium intybus var. foliosum 'Rossa di Verona' · also called Verona radicchio, round red chicory · edible
'Rossa di Verona' is the classic round-headed radicchio, forming a tight cabbage-like ball of deep red leaves veined with white. Cool autumn weather and frost trigger the colour change and sweeten its crisp, bitter leaves. Sown in summer, it hearts up for autumn and early-winter cutting in temperate gardens.
Preferred mix: Fertile, moisture-retentive loam, pH 6.0-6.8
Watch for — Failure to heart up: Plants sometimes stay open and leafy instead of forming a tight ball, usually from sowing too early, warm weather or loose soil. Sow in summer for autumn hearting and grow on firm, fertile ground.
Why radicchio 'rossa di verona' needs this mix
Radicchio 'Rossa di Verona' hates drying out, so it wants a mix that stays evenly moist — but it still needs perlite so "moist" never tips into "waterlogged".
- Radicchio 'Rossa di Verona' comes from damp, shaded forest floors and has fine roots that scorch and brown the moment the rootball dries — the mix has to hold a steady reserve.
- Coir and compost give that reserve, while perlite keeps enough air that the constantly-moist mix does not turn anaerobic.
- Even moisture also keeps its thin leaves from crisping at the edges, which is this plant’s most visible stress signal.
For the full picture on what makes up a good mix, see our guide to the main types of soil and potting media — it explains why each ingredient above behaves the way it does.
What goes wrong with the wrong mix
The wrong soil is one of the most common reasons radicchio 'rossa di verona' struggles, and the damage often shows up weeks later as a watering problem. For this species specifically:
- A free-draining, gritty mix dries too fast for radicchio 'rossa di verona' — you get crispy brown edges and frond or leaf drop within days of one missed watering.
- A pure, airless peat mix swings the other way: it holds water but suffocates the fine roots and rots the crown.
- Letting the mix dry to the point it shrinks from the pot is very hard to re-wet evenly and stresses the plant badly.
Using a sharp, fast-draining "houseplant" or cactus-leaning mix that lets radicchio 'rossa di verona' dry out. It needs a moisture-retentive but still airy blend.
pH — does it matter for radicchio 'rossa di verona'?
Radicchio 'Rossa di Verona' prefers a slightly acidic mix (around pH 5.5-6.5); a peat-free compost-and-coir blend sits there naturally, so routine pH testing is unnecessary.
If you want to check or adjust it, the soil pH guide walks through testing and the safe ways to nudge a mix more acidic or more alkaline.
DIY mix vs a bagged one
A good peat-free houseplant compost works for radicchio 'rossa di verona' straight from the bag if you mix in some perlite for air. The DIY ratio above gives a more reliable moisture-to-air balance.
Drainage and the pot
Use a pot with a drainage hole but a less-porous material (plastic or glazed) so it does not dry too fast. Bottom-watering keeps the mix evenly moist without sogging the crown.
Peat-free mixes slump and compact as they hold moisture, so refresh radicchio 'rossa di verona''s mix every 12-18 months to keep air in the rootball even if the pot size is unchanged. When the time comes, our repotting guide for radicchio 'rossa di verona' covers the timing and technique step by step.
Radicchio 'Rossa di Verona' soil — frequently asked questions
What is the best soil mix for radicchio 'rossa di verona'?
3 parts peat-free houseplant compost : 1 part coco coir : 1 part perlite. Radicchio 'Rossa di Verona' comes from damp, shaded forest floors and has fine roots that scorch and brown the moment the rootball dries — the mix has to hold a steady reserve.
Can I use normal potting soil for radicchio 'rossa di verona'?
A free-draining, gritty mix dries too fast for radicchio 'rossa di verona' — you get crispy brown edges and frond or leaf drop within days of one missed watering. A good peat-free houseplant compost works for radicchio 'rossa di verona' straight from the bag if you mix in some perlite for air. The DIY ratio above gives a more reliable moisture-to-air balance.
Does radicchio 'rossa di verona' need a special pH?
Radicchio 'Rossa di Verona' prefers a slightly acidic mix (around pH 5.5-6.5); a peat-free compost-and-coir blend sits there naturally, so routine pH testing is unnecessary.
Should I buy a bagged mix or make my own for radicchio 'rossa di verona'?
A good peat-free houseplant compost works for radicchio 'rossa di verona' straight from the bag if you mix in some perlite for air. The DIY ratio above gives a more reliable moisture-to-air balance.
How often should I refresh the soil for radicchio 'rossa di verona'?
Peat-free mixes slump and compact as they hold moisture, so refresh radicchio 'rossa di verona''s mix every 12-18 months to keep air in the rootball even if the pot size is unchanged. Use a pot with a drainage hole but a less-porous material (plastic or glazed) so it does not dry too fast. Bottom-watering keeps the mix evenly moist without sogging the crown.
Keep reading
- Radicchio 'Rossa di Verona' care — the full brief (light, water, humidity, problems, pet safety)
- How often to water radicchio 'rossa di verona' — the schedule the mix feeds into
- Repotting radicchio 'rossa di verona' — when and how to refresh the mix
- Soil pH guide — test it and adjust it safely
- Underwatered plant — signs and how to rehydrate it
- Why is my plant wilting? Wet vs dry diagnosis
- Should I water my plant? The simple check first
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- All 5561 soil and potting-mix guides in the Growli library