Starting at £3.99
Approx 450 seeds per gram
Red Welsh Onion – “Commune Rouge” is a red-stemmed variety of Welsh onion grown for its mild flavour and attractive colour.
It belongs to the species Allium fistulosum.
Stems: Deep red to purple lower stems fading to green tops
Leaves: Hollow, tubular, and upright
Bulb: Does not form a true bulb (unlike common onions)
Growth habit: Clump-forming perennial
Height: About 30–50 cm (12–20 inches)
Mild, fresh onion taste
Less sharp than common onions
Slight sweetness when young
Hardy perennial in many climates
Grows well in cool conditions
Can be harvested repeatedly (cut-and-come-again)
Attractive in ornamental kitchen gardens due to its red coloring
Salads
Stir-fries
Garnishes
Soups
Grilled whole like spring onions
“Commune Rouge” is especially valued for adding colour contrast to dishes while providing a gentle onion flavour.
Early spring: As soon as soil can be worked
Late summer/early autumn: For overwintering crops
In mild climates, it can be sown almost year-round
Soil temperature: ideally 10–20°C (50–68°F)
Prepare well-drained, fertile soil in sun or light shade.
Sow seeds 1 cm (½ inch) deep.
Space rows 20–30 cm (8–12 inches) apart.
Thin seedlings to 5–10 cm (2–4 inches) apart.
Water gently but consistently until established.
Germination usually takes 7–14 days.
Sow in modules or trays 6–8 weeks before last frost.
Transplant when seedlings are 10–15 cm tall.
Plant in small clumps (3–5 seedlings together) for fuller growth.
Prefers moist but well-drained soil.
Feed lightly with compost or balanced fertilizer.
Mulch to retain moisture and suppress weeds.
Divide clumps every 2–3 years to maintain vigour.
Because it’s perennial, plants will regrow year after year in many climates.
Begin harvesting when stems are pencil-thick.
Cut outer stems at the base — plant will continue producing.
For baby onions, harvest earlier for a sweeter flavour.
Very hardy.
In cold regions, mulch in late autumn for protection.
If you tell me your climate or country, I can tailor the sowing times more precisely.
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