Sweet genus Viburnum ( Viburnum odoratissimum , USDA hardiness zone 7 - 9 ) responds to right tending and appropriate circumstance with steady , moderate growth . Under optimum growing condition , sweet genus Viburnum typically grows 24 inch per year until it achieve maturity , according toCal Poly ’s Urban Forest Ecosystems Institute . It typically spring up fast in its southernmost growing zones , but cool climate result in wearisome one-year outgrowth .
Sweet Viburnum Growth Habit
Sweet genus Viburnum course grows as a bombastic , multi - stemmed bush or diminished tree . When pruned and trained to a single stem , it take form a glossy , spreading canopy . At maturity , scented viburnum generally reaches 10 to 20 feet tall in the northerly ranges of its hardiness zones . Elsewhere , it has been be intimate to surpass that height .
In southern regions , tree diagram - form sweet viburnums may mature up to 30 foot tall and wide-eyed . In its natural , multi - cauline form and institute befittingly , this industrial plant excels as a staggered projection screen or slow , evergreen , fast mature genus Viburnum hedge . In its northmost hardiness compass , theNorth Carolina State Extensionnotes that sweet viburnum may be deciduous , which is a consideration if you ’re wanting a substantial - unripened privacy CRT screen all year long .
Sweet Viburnum Ornamental Features
As its coinage and usual name suggest , sweet genus Viburnum is known by its scent . A fresh , honeyed fragrance emanates from creamy - white flower panicles that cover the plant in later spring . But the leaves — if squelch — give off a distinctively unpleasant olfactory sensation that positively identifies the plant at hand .
sweetened genus Viburnum ’s pyramid - regulate flower cluster originate 3 to 6 inch long and 2 1/2 to 5 in blanket . As summertime progresses , 1/4 - column inch - long red fruits take their place and suck wildlife to the garden . The attractive , ellipse fruits mature to purple - opprobrious .
odorous genus Viburnum leaves grow up to 8 inch long and 4 inches wide . fresh growth sometimes reflects a pink tinge , specially on the cultivar Emerald Lustre , notes theClemson Cooperative Extension .

Growth-Enhancing Sweet Viburnum Culture
cherubic viburnum does well in full sun to fond shade on well - drain soils from sand to Lucius Clay . It favor slightly acid filth pH near 5.5 to 6.5 , but it withstands extremely alkalic condition . modest - maintenance and undemanding , sweet viburnum tolerates drouth , but regular moisture raise steady growth . body of water deeply when you water , then permit soil dry somewhat before watering again .
Overly wet grunge and poor drain lead to root putrefaction disease . Before planting , work a 3 - inch bed of constituent compost into the stain 8 to 12 in cryptical . No further fertiliser are needed . Mulch established plant with 2 to 3 inches of constitutional compost to support intelligent growth .
Growing Considerations for Sweet Viburnum
Sweet genus Viburnum perform admirably in difficult urban configurations , include median strips and concrete islands , but urban challenge can affect its growth charge per unit . Do n’t be entice to manipulate sweet viburnum through unnecessary fertilizers or other measure . Unnatural growth rates go to decrepit , job - prostrate wood . Natural growth advance strength and health .
If needed , prune seraphic viburnum aright after it finishes flowering . To enjoy the fruits , leave the flowering stems inviolate . Use discriminating bypass pruning shear , and hygienise the blades with alcohol before make believe each cut . deflect late - time of year pruning ; it sacrifice bounce rosiness and inhibits hardiness .