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Mirabilis jalapa

Mirabilis jalapa
four o'clocks

Common name four o'clocks
Family nyctaginaceae
Life cycle tender perennial (Z7-11)
Flowers various colors (summer)
Size 24-36"
Light sun-part shade
From seed Germinate with bottom heat
detailed seed-starting info below
Seed ripensextended period, starting early September

Grown as an annual. That's fair enough for Pennsylvania, where we first grew it, because it's not supposed to be hardy in zone 6. But even in Houston, where cold hardiness should not be an issue, I've not found it to return after winter, although it self-seeds well enough.
Nearly all of my experience is with the variety 'Broken Colors', whose flowers sport interesting color patterns, variously streaked magenta and yellow, with occasional solid-color blooms as well – sometimes on the same plant. My current plants are the result of many generations of seed collected from previous years' gardens, and the patterning still persists.

Mirabilis jalapa
four o'clocks
Mirabilis jalapa
Flowers before they fully open

In our garden, this plant grows in the following area: back fence border

Seed for this plant is included on my seed trade list

One or more images of this plant are included in my stock photo catalog

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Seed-starting details for this plant

  1. Seed for 'Broken Colors' from '07 trade. Baggy 75F (100%G, 4-8d)
  2. Seed from '08 garden. Baggy 75F (44%G, 4-6d)
  3. Seed from '09 garden. Baggy 75F (92%G, 4-11d)
  4. Seed from garden. Baggy 75F (67%G, 4-6d)
  5. Same seed as above. Baggy 75F (30%G, 8-12d)
  6. Same seed as above. Baggy 75F (47%G, 8-16d)
  7. Seed for 'Broken Colors' from '14 garden. Baggy 75F (90%G, 6-13d)
  8. Seed for 'Broken Colors' from '14 garden. Baggy 70F (78%G, 6-12d)
  9. Same seed as above. Baggy 70F (67%G, 7-11d)

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