Sunflower Leaves Brown & Translucent: Hot Water or Season End?

South Florida organic gardener: sunflower leaves brown and translucent.

Possibilities

1. Fungus: Usually spotty, not whole leaf. Needs damp conditions.
2. Hot hose water: Sun-heated hose water hits leaves → translucent "cooked" look.
3. Natural senescence: True sunflowers live 2–3 months, bloom, seed, die. If flowered and seeded, they're done.
4. Drought: Leaves yellow then brown.

Diagnose

Check for seed heads. If present, plant's life cycle ended. If not, test watering—deep soak less often. Avoid hot hose water on foliage.