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Hydrangea arborescens ‘Dardom’

 

Smooth Hydrangea

KingdomPlantaePlants, but not fungi, lichens, or algae (from Stearn’s Botanical Latin)
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassRosidaeRoses, legumes, proteas, dogwoods, hydrangeas, mistletoes, euphorbias, grapes, many more
OrderRosalesRose family and eight others
FamilyHydrangeaceaeHydrangea family
GenusHydrangeaFrom Greek hydro, “water,” and angeion, “vessel”
SpeciesarborescensWoody or tree-like, becoming like a tree
Cultivar‘Dardom’

About plant names...

Smooth hydrangeas are native to North America. This cultivated variety, developed in 1997, has larger leaves and flowerheads.

Identification: These shrubs are 3-5' (91-152 cm) high. Leaves are elliptical, serrated, 3-8" (7.6-20 cm) long, and dark green. Dome-shaped corymbs 6-10" (15-25 cm) around contain both sterile and mostly fertile flowers. See this Hydrangea comparison table.

Online References:

Hydrangea arborescens ‘Dardom’ on Horticopia

Hydrangea arborescens ‘Dardom’ at the Missouri Botanical Garden

Hydrangea arborescens ‘Dardom’ on patents.justia.com

Hydrangea arborescens ‘Dardom’ description by Thomas H. Kent, last updated 16 Aug 2013.

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Hydrangea arborescens (Smooth Hydrangea)

10/22/2009 · Tom and Susan’s, Pepperell, MA
≈ 6 × 4" (15 × 10 cm)

Hydrangea arborescens (Smooth Hydrangea)

10/22/2009 · Tom and Susan’s, Pepperell, MA
≈ 7 × 4½" (17 × 11 cm)

Hydrangea arborescens (Smooth Hydrangea)

10/22/2009 · Tom and Susan’s, Pepperell, MA
≈ 4½ × 3" (11 × 7.9 cm)

Range: Zones 4-9:

About this map...