🌿 Milk Thistle
Silybum marianum
medicinal_herbs
annual/biennial
Asteraceae
☀️ Sun
full sun
💧 Water
low
🗺️ Zones
5-9
🧪 Soil pH
6.0-8.0
🪴 Soil Type
adaptable
🚿 Drainage
well-drained
📏 Spacing
18-24 in
📐 Height
3-5ft
⏱️ Maturity
90-120 days
Key:🤝 Grows well together❌ Keep apart☀️ Sun needs💧 Water🗺️ Hardiness zone
🤝 Companions (3)
⚠️ Keep Apart (2)
⚠️ Delicate garden beds
⚠️ Milk thistle is large, spiny, and self-seeds aggressively.
📝 Growing Notes
Spiny , wear gloves. Prolific self-seeder. Can be invasive in some areas.
🛒 Buy Seeds & Plants
Baker Creek Heirloom Seeds
Johnny's Selected Seeds
Botanical Interests
True Leaf Market
Burpee
Territorial Seed Company
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