Saving a Sunburned Zamia integrifolia (Coontie)

Rescuing a Cycad from Heat Stress

A plant purchased without a label was identified as Zamia integrifolia, a cycad commonly called coontie. After an afternoon on a hot Austin balcony, the tender new growth suffered sunburn while older fronds remain green.

Immediate Care

• Pot size: The plant is in an excessively large pot, which retains moisture too long. Repot into a container only 2-3 times wider than the base.
• Watering: Allow the soil to become very dry between waterings. In a large pot, this is difficult; repotting now (spring/summer) will help prevent root rot.
• Light: Provide only morning or evening sun (2-3 hours). Full-day exposure requires shading during peak afternoon heat. The plant tolerates heat but not intense sun.
• Patience: Wait at least six months before removing damaged fronds; they may recover or become less noticeable as they mature.

Night temperatures must stay above 50°F for outdoor placement. With proper conditions, the plant should stabilize and produce healthy new growth.