Seven weeks ago I gave myself an early Christmas present – a bowl in a classic shape (actually a sort of plastic flower pot) and four succulent plants. I had been inspired by reading Succulent Container Gardens by Debra Lee Baldwin which I had reviewed in this column earlier in December. I am not terribly good at caring for houseplants except for the succulents: a jade tree, an enormous orchid cactus, and Christmas and Thanksgiving cactus I had…