1. Hibiscus - any (I am a Hibiscus fanatic. I get tempted by them very easily.)
2. Pussy Willow (Salix) - any
3. Dragon Wing Begonia (red)
4. Peanut Butter Shrub (Clerodendrum trichotomum)
5. any Tropical/Houseplants
6. Lipstick Plant (Aeschynanthus pulcher)
7. Ceropegia/Stapelia - any that can be grown from seed
Updates:
8. Cyclamen - any especially Cyclamen hederifolium Silver Leaf
9. any Arisaema (Jack in the Pulpit)
10. Amorphophallus bulbifer (Pink Voodoo Lily)
11. Arum creticum
12. Gloxinia
13. any red Sunflowers - Moulin Rouge, ProCut Red
14. Medinilla magnifica
15. Torenia - any color besides blue
16. Chirita/Primulina - any
17. Sinningia - any