I live in a temperate area so I'm only familiar with these plants. This list consists of plants that I currently grow or have grown in the past.
Agapanthus africanus (Lily of the Nile) - nectar source for hummingbirds
Aloe maculata (Soap Aloe) - nectar source for hummingbirds
Asclepias curassavica (Tropical Milkweed) - nectar source for bees, butterflies, hummingbirds; host food for Monarch Caterpillar
Asparagus densiflorus 'Sprengheri' - food source for birds
Buddleja davidii (Butterfly Bush) - nectar source for bees, butterflies
Callicarpa americana (American Beautyberry) - nectar source for bees, fruit is food source for birds
Callistemon rigidus (Stiff Bottlebrush) - nectar source for bees, butterflies, hummingbirds
Callistemon viminalis (Weeping Bottlebrush) - nectar source for bees, butterflies, hummingbirds
Catharanthus roseus (Madagascar Periwinkle) - nectar source for butterflies
Clerodendrum paniculatum (Pagoda Flower) - nectar sourse for bees, butterflies, hummingbirds
Cuphea hyssopifolia (Mexican False Heather) - nectar source for bees, butterflies
Echinacea purpurea (Purple Coneflower) - nectar source for bees and butterflies
Eriobotrya japonica (Loquat) - nectar source for bees, fruit is a food source for birds
Flaveria linearis (Yellowtop) - nectar source for bees, butterflies
Koelreuteria elegans (Golden Rain Tree) - nectar source for bees
Hamelia patens (Firecracker Shrub) - nectar source for bees, butterflies, hummingbirds
Helianthus annus (Common Sunflower) - food source for birds
Hibiscus rosa sinensis (Tropical Hibiscus) - nectar source for bees
Lantana camara - nectar source for bees, butterflies and moths, fruit is food source for birds
Monarda punctata (Dotted Bee Balm) - nectar source for bees, butterflies
Nandina domestica 'Compacta' - nectar source for bees, butterflies
Odontonema strictum (Firespike) - nectar source for butterflies, hummingbirds
Passiflora - nectar source for butterflies, host food source for Gulf Fritillary Butterfly
Pentas lanceolata (Egyptian Star Flower) - nectar source for bees, butterflies, hummingbirds
Plumbago auriculata (Blue Plumbago) - nectar source for bees and butterflies
Prunus caroliniana (Carolina Cherry Laurel) - nectar source for bees, berries are food source for birds
Prunus serotina (Wild Black Cherry) - nectar source for bees, fruit is food source for birds
Salvia coccinea (Tropical Sage) - nectar source for bees, butterflies
Salvia coerulea (Anise-scented Sage - nectar source for bees, butterflies
Senna bicapsularis (Christmas Senna) - nectar source for butterflies, host food for Cloudless Sulphur Caterpillar
Spaghneticolia trilobata (Creeping Daisy) - nectar source for bees, butterflies
Tecoma stans (Yellow Bells) - nectar source for bees
Trachelospermum jasminoides (Confederate Jasmine) - nectar source for bees, butterflies
Viburnum odoratissimum (Sweet Viburnum) - nectar source for bees
Wisteria frutescens - (American Wisteria) - nectar source for bees and butterflies
