🧅 Welsh Onion
Allium fistulosum
vegetables
Perennial
Amaryllidaceae
☀️ Sun
Full Sun
💧 Water
Moderate
🗺️ Zones
5-9
🧪 Soil pH
6.0-7.0
🪴 Soil Type
Well-draining
🚿 Drainage
Well-drained
📏 Spacing
6-8 in
📐 Height
18-30 in
Key:🤝 Grows well together❌ Keep apart☀️ Sun needs💧 Water🗺️ Hardiness zone
🤝 Companions (4)
Perennial bunching onion for carrot protection
Chamomile (Matricaria chamomilla) has long been used as a companion plant in traditional European horticulture. It attracts beneficial insects including hoverflies and parasitic wasps that prey on aphids. Its feathery foliage and open flowers provide early-season pollen and nectar for beneficial insects. Note: the common claim that chamomile improves the flavor of nearby plants is rooted in Biodynamic farming tradition (Rudolf Steiner) and is not supported by controlled scientific studies.
Deters pests from strawberry beds
Perennial allium companion for tomatoes
⚠️ Keep Apart (3)
📝 Growing Notes
Perennial bunching onion - never buy green onions again. Divide clumps to multiply.
🛒 Buy Seeds & Plants
Baker Creek Heirloom Seeds
Johnny's Selected Seeds
Botanical Interests
True Leaf Market
Burpee
Territorial Seed Company
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