Select a base for your centerpiece suitable to the occasion or your home decor. Fill the bottom of your base with a substrate that suits your decor scheme. For instance, if you're using a tall, clear vase, fill it with colored pebbles or marbles. A basket of river stone is another pretty idea. Let your creativity run wild with this part of the project.
Place your selection of dendrobium orchid flowers in the center of your centerpiece base. If you're using a flat base with fresh orchids, keep them in a small pot for their vitality. If you're using a vase, simply slide the orchids into it. Keep water in the vase to keep them fresh.
Arrange accent pieces around the central part of the centerpiece. A wreath of eucalyptus leaves proves attractive and also adds a pleasing aroma to the immediate environment around the centerpiece. These foliage accents can be arranged around the flowers or inserted into the base at the center.
Embellish your centerpiece according to your own wants and by whatever matches the theme you enjoy. Positioning battery-operated candles at either side of the centerpiece adds a touch of romance to the conversation-starting ornament.