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  Black Dragon Japanese Wisteria
  January 21st, 2006

Wisteria floribunda ‘Black Dragon’

Hardiness Exposure Soil Water Flowers Height
USDA Zone 5 to 9 or -25 Deg F

Full Sun to Part Shade Moderate

Moist & Well Drained Drought Tolerant When Established

Blue Violet to Red Violet 30′ to 50′ Long

The Black Dragon Wisteria is known by many names. Yae Kokuryu, Boton Fuji, Yae Fuji and Violacea Plena to name a few. This is certainly not a new plant. This Japanese Wisteria has been grown since at least the 1870’s. It is still one of the few double flowered wisteria vines. The flowers are absolutely stunning. The fully double flowers give the illusion of large clusters of fragrant grapes which cover the plant in mid to late spring. This plant is quite vigorous and can take over a yard if not kept in check. Make sure to cut back this beauty after it blooms in the spring so that the Black Dragon does not think that your yard is hers. She is likely to move right on in if you are not quite diligent. Try staking the main trunk when you plant and grow her as a very elegant weeping tree. This works very well as long as there is not any other structure that she may become attached. The main drawback to that venerable variety is that she is slow to come into bloom. It may take 3 to 5 years after planting before you will enjoy significant bloom. You can try fertilizing with a low nitrogen fertilizer such as a 2-10-10 so that the growth is not so rapid. Another great trick to prod her into flower is to use your shovel and dig down spade depth in a circle that is 12″ to 18″ away from the trunk thereby simply cutting some of the roots. This will once again slow the growth a bit and encourage the spectacular display. So, if you are brave enough to try wisteria in your yard, give the Black Dragon a try. You will discover why she has drawn rave reviews for the last hundred or so years.

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