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How to Grow Mexican Sunflower (Tithonia Rotundifolia)

A tall, cheerful flower, this annual (grows just one year) offers a fun way to fill the back of a border or add instant color to any landscape. Mexican sunflower produces bright dahlialike flowers in orange, yellow and brilliant red. It also makes a good cut flower.

Things You'll Need

  • Bypass Pruners
  • Compost Makers
  • Fertilizers
  • Garden Hoses
  • Garden Spades
  • Garden Stakes
  • Plants
  • Seeds
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Instructions

    • 1

      Choose a site with average to poor, well-drained soil in full sun.

    • 2

      Plant seeds directly in soil after your region's last average frost date. Or start seeds indoors six to eight weeks earlier.

    • 3

      Thin plants to about 2 feet apart.

    • 4

      Keep soil evenly moist, but don't overwater - this flower likes it a little on the dry side.

    • 5

      Trim faded flowers to promote longer blooming.

    • 6

      Fertilize every 8 to 10 weeks, or work in a slow-release fertilizer (or plenty of compost) at planting time.

    • 7

      Tear out and discard plants in fall, after frost fells them.