I guess with the frequent waterings, the soil level went down enough that the stems were exposed. Before I realized what was happening, the stems were soft and rotten. I blame the abundance of leaves for my misfortune! But I can't say I'm that upset, I got some crazy zucchinis off this plant and I'm really sick of watering it, anyway. Frankly, I'm tired of super heat, swarms of mosquitos and eyebrow sweat in general. Are you with me?