Here's an Impatiens you won't find in your local nursery.  In fact, it's likely that no one you know grows it!  Impatiens roingensis is a beautiful, rare species that is new to cultivation, discovered in the Indian Himalayas.  It flowers throughout the year atop long stems 4 to 6 feet tall.  The inflated, white blooms have yellow markings inside and are capped with a lovely purplish-red.  This is a very attractive plant that deserves to be widely grown.

Impatiens roingensis is a perennial species with a tall, upright growth habit.  It's a robust plant, with oversized leaves that get 6 inches long.  Blooms appear in large clusters near the tops of the shoots, which puts them closer to eye level!  The 2 inch blossoms are shaped somewhat like a bird in flight.  The color of the "cap" can vary from deep plum to white in different plants, but i have selected plants with the most vivid color.  Indoors, they flower all year long for me!

The plant is untested in hot conditions, but other Impatiens species from the same region tend to be happiest between 50 and 80 degrees F (10-27 degrees C), and often lag in hot conditions, especially if nights are warm.  Consider it experimental above 85 degrees F (29 C) with warm nights.  I don't think it is frost-hardy, but you may grow it as an annual and collect the seeds each year.  Or grow it indoors in a pot.  Like most Impatiens, it prefers moist, well-draining soil, and filtered sun or bright shade.  Protect it from strong afternoon sun.  Over about 40-45% humidity is recommended.  In the right conditions, it is an easy and vigorous plant.

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Germination tips for this plant