香蕉欧宝像咖啡渣吗？
as a general rule, i’d recommend against using coffee grounds in any houseplant soil base due to the potential acidity imbalances that can arise. stick to a good organic soil mix and top up with an appropriate fertilizer solution during the spring and summer months only.
folding or curling leaves is often a sign of underwatering, lack of nutrients in the soil base, or insufficient exposure to a light source. check the moisture levels in the soil and give the plant a good watering (ensuring drainage) if the soil appears to be at least 70% dry. move the plant to a position with maximum exposure to the sun’s rays such as a south facing window.