Grow “Black Kniolas” Morning Glory from fresh flowering vine seeds. “Black Kniolas” produces a deep violet, almost black flower that will bloom to about 1.5 to 2 inches in width. Greatly used to cover a fence or trellis, and exceptionally gorgeous when sown near a white background / fence. For an eye popping contrast Kniolas Black Ipomoea can be sown with or near white Ipomoea plants such as the Moonflower, Shiva, or Milky Way varieties.
Ipomoea purpurea will grow to a mature length of about 6 to 8 feet long. Morning Glory is an annual plant that will bloom profusely up until the first frost. It may return the following year if seeds fall to the ground below it.
Growing the Morning Glory vine is simple. Because it has a hard outer shell, nicking the seeds with a knife, or scratching them with sandpaper is recommended. After nicking the seeds, simply place them in warm water overnight to soften the hard outer shell. They can be sown the next day.
Morning Glories can be started indoors, in peat pots for easy transplanting later on. They can also be started directly in the area of your choice when the weather becomes warm. Temperatures should be at least 65F for the seedlings to thrive. Sow the seeds about 1/4” under topsoil. Provide at least 6 hours of sunlight each day, and a fair amount of moisture. Small sprouts should begin poking through the earth in roughly 10 to 20 days, sometimes even sooner.