Genus: Mexican sunflower Tithonia Photo/Illustration: Chris Curless Mexican sunflower (Tithonia) Asteraceae In the genus Tithonia are ten species of bushy annuals, perennials, and shrubs from Mexico and Central America that have bright orange or red daisy-like flowers on thick stems. Plants in this genus attract butterflies, bees, and hummingbirds and are useful in a mixed or annual border or cutting garden. Noteworthy characteristics: Bushy form. Good cut flowers. Care: Tithonia needs warm sunny weather to grow well, and full sun in well-drained, fertile soil. Shelter from strong winds. Stake if necessary and water during dry periods. Propagation: Sow seed indoors in spring or in situ when all danger of frost has passed. Do not allow seedlings to get cold, as leaves will turn yellow. Problems: Slugs and snails may eat new growth. Species, varieties and clutivars for genus Tithonia 1 2 3 4 5 6 7 8 9 10 11 Mexican sunflower Tithonia rotundifolia 'Torch' View the discussion thread.