Extension > Garden > Diagnose a problem > What's wrong with my plant? > Vegetable > Broccoli > Hollow stem on flower head
Broccoli > Head > Hollow stem on flower head
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Nitrogen Toxicity
- Can cause hollow stem in cauliflower and broccoli
- Can cause "ricing" in broccoli and cauliflower, in which small flower buds develop in the curd creating a fuzzy or velvety appearance
- More information on Nitrogen Toxicity
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Boron Deficiency
- Can cause hollow stem in broccoli and cauliflower
- Curds become discolored and deformed in cauliflower
- Florets turn brown in broccoli
- More information on Boron Deficiency
