Fungal Wilting Sunflowers are a moisture-loving plant. Without sufficient water, new plants are susceptible to fungal wilting. Fungi living in the soil attack sunflowers, moving upward and causing dark brown spots on the leaves and stem of the plant. New plants also appear wilted and dry.Click to see full answer. Also asked, why are my sunflower leaves dying?Water the sunflower more often than you have been if you allowed its soil to dry too much, the plant no longer grows well and its lower leaves yellow and drop. Avoid overwatering and rot by dumping the excess water that collects in the pot’s drainage dish, and water the soil only when it feels dry when you touch it.Likewise, how do you keep sunflowers alive? 5 Tips On How To Keep Sunflowers Alive And Fresh! Water thoroughly a few hours before picking. Sunflowers grow very tall and need a lot of water to survive. Pick in the early morning. Cut stems at an angle. Put stems in water immediately after picking. Change the water every day. Likewise, how often should sunflowers be watered? Although sunflowers require a lot of water to germinate, they only require an inch of water per week during the growing season. Use a watering nozzle to easily water once a week until the top 6 inches of soil is moist.How do you get rid of fungus on sunflowers?Spray the upper and lower surfaces of the leaves, and reapply every 7 to 14 days until the chance of infection is past. To cure fungal diseases on sunflowers, spray every seven days until all the symptoms have disappeared. Remove and discard any infected leaves to help prevent the spread of diseases.
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