Although the gardener saw me with my camera, he made no apologies and turned on the hose to water the plants. What a letdown. Fortunately, I managed to take some photos of the beautiful bed of Melampodium paludosum (synonym: M. divaricatum; common name: Butter Daisy, Star Daisy, Gold Medallion Flower, African Zinnia; Family: Asteraceae / Compositae), white flower Oxalis and Torenia fournieri (common name: Wishbone Flower, Bluewings Flower, Torenia; Family: Scrophulariaceae) before the water came down on the bed.
Some links on the plants are attached here for reference: