Thursday, October 2, 2014

Viburnum Odoratissimum - Sweet Viburnum And Other Varieties Of Evergreen Viburnums

Viburnum odoratissimum/ sweet viburnum is just one out of approximately 150 deciduous and evergreen viburnum species (based on data from Clemson University). Sweet Viburnum is among the evergreen species.

Clemson University provides a comprehensive outline of these evergreen viburnum species:

(i) Viburnum Odoratissimum/ Sweet Viburnum:

This plant grows to a height ranging between 10 and 20 feet with 3 to 8 inch long leaves. You just might catch a light scent from its lightly fragrant white flowers in mid-spring. These flowers normally grow in conical clusters, which are about 3 to 6 inches wide.

(ii) Viburnum Awabuki/ Awabuki Viburnum:

The Awabuki is approximately the same height as the sweet viburnum, reaching 15 to 20 feet. However, you can easily differentiate it from sweet viburnum by its slender leaves which are ½ to 2 inch wide, compared to the 1½ to 4 inch wide leaves of the sweet viburnum. Such leaves are also peculiarly thick, shiny and have distinct teeth.

Being relatively drought resistant, this plant will do well in both sun and shade. Just make sure that it isn't exposed to temperatures below 10 oF, which can damage its leaves.

(iii) Viburnum Davidii/ David Viburnum:

The leathery, parallel-veined, dark blue-green leaves of this low growing shrub give it quite an exceptional look. At least, that makes up for its diminutive figure, reaching a height of only 2 to 3 feet. It also holds an interesting surprise for you, when its pink buds open up to white flowers in 2 to 3 inch clusters, during the months of April to May.

An even more interesting aspect of this plant is the fact that it will bear those distinctive bright, metallic blue berries only if it's grown beside a separate clone of the same variety. You should also keep it in the shade, since it isn't tolerant to heat.

(iv) Viburnum Obovatum/ Walter's Viburnum:

Unlike the delicate David, Walter's viburnum can tolerate both drought and heat. This hardy plant will flourish in sun and part shade or wet and dry soils. It has very dense, semi-evergreen foliage, which makes it suitable for hedging. Get ready for the wonderful surprise in winter when its leaves develop an interesting purple tint.

(v) Viburnum Rhytidophyllum/ Leatherleaf Viburnum:

This is one evergreen viburnum that has an inborn talent of prospering in the shade. Just make sure the soil is moist and well-drained and it will grow to a thriving 10 to 15 feet tall, multi-stemmed plant.

It does have the typical large, shiny and dark leaves found in many other viburnum species. Although, it normally won't sprout too many berries, you can enjoy its creamy, white flowers, which open in large clusters during the month of April.

(vi) Viburnum Suspensum/ Sandankwa Viburnum:

The growing habits of sandankwa offer a stark contrast to the leatherleaf. Rather than tolerating shaded conditions, the sandankwa is quite at home in hot, dry areas. It is even able to thrive in sandy soils with full sun. However, this plant is much shorter than the leatherleaf, since it only grows to a height of 6 to 12 feet.


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