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Rosemary Dieback After Heavy Rain: Likely Fungus, Try Kelp Spray

Symptoms (nodules, yellowing, dieback from tips) after prolonged rain + cloudy days = classic fungal conditions.

Take samples to county extension (csrees.usda.gov/Extension).
Spray liquid kelp (1 Tbsp/gal) — boosts resistance to fungus, drought, frost.
Kelp safe even if not fungus.
Contact herb growers (cuhsa.org) for peer advice.

Extension agent unsure (cotton/peanut focus). Kelp worth trying.

Herbs: Asparagus (Asparagus officinalis): Perennial Vegetable with Feathery Foliage; Barbeque Rosemary (Rosmarinus officinalis 'Barbeque'): Flavorful Upright Shrub with Blue Flowers; Borage (Borago officinalis): Edible Blue Flowers for Herb Gardens; Calendula officinalis: Edible Pot Marigold for Summer Color; Creeping Rosemary (Rosmarinus officinalis 'Prostratus'): Aromatic Groundcover; 'Salem' Rosemary (Rosmarinus officinalis 'Salem'): Upright, Hardy Culinary Herb; Common Sage (Salvia officinalis): Classic Culinary & Ornamental Herb; Rosemary (Rosmarinus officinalis): Mediterranean Herb for Sun, Drainage & Air Flow; Salvia officinalis 'Sage Berggarten': Culinary Sage with Ornamental Foliage; Rosemary (Rosmarinus officinalis): Aromatic Evergreen for Landscape & Kitchen

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Prostrate Rosemary (Rosmarinus officinalis 'Prostratus'): Trailing Herb

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Great Design Plant: 'Hummelo' Betony (Stachys officinalis 'Hummelo')

'Berggarten' Sage: The Culinary Favorite

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