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Tithonia rotundifolia

 
Tithonia rotundifolia
Common name Mexican sunflower
Family asteraceae
Life cycle annual
Flowers orange
Size 4 ft
Light sun
Cultural notes ordinary garden soil
From seed Germinate at warm temperature (75F)
detailed seed-starting info below
Seed ripenslate September

Covered in orange daisies mid-summer through fall. One of our favorite large annuals. A favorite of insect life, too, as you can see in the closeup photo!

In our garden, this plant grows in the following area: cutting garden

Seed for this plant is included on my seed trade list

About my plant portraits

Seed-starting details for this plant

  1. Seed from '00 garden. Baggy 70F (62%G)
  2. Seed from '00 garden. Baggy 75F (93%G, 2d)
  3. Seed from '02 garden. Baggy 75F (60%G, 2-5d)
  4. Seed from '03 garden. Baggy 75F (94%G, 3d)
  5. Same seed as above. Baggy 75F (90%G, 2-5d)
  6. Seed from '07 garden. Baggy 75F (75%G, 3d)

Quick to germinate, but also quick to deteriorate in baggy - needs to be potted up within a day or two after sprouting.

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Last modified: March 26, 2008
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