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The south border, spanning both sides of the great gate is home to another series of fastigiate (columnar) trees: two tiny groves of sweet gums. The south border has plants mainly suited to dry shade as the two weeping beeches and the katsura absorb much of the rainwater in that area. The north border, flanking the amphitheater, is sunny and contains simple hedges. The large reflecting pool below the amphitheater is dotted with tropical water lilies and other aquatic plants. Goldfish and koi enjoy hiding near these plants.
