Hydrangea arborescens ‘Dardom’ (Smooth hydrangea)

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Hydrangea arborescens ‘Dardom’

Smooth hydrangea

Kingdom	Plantae	Plants, but not fungi, lichens, or algae
Subkingdom	Tracheobionta	Vascular plants—plants with a “circulatory system” for delivering water and nutrients
Division	Magnoliophyta	Flowering plants, also known as angiosperms
Class	Magnoliopsida	Dicotyledons—plants with two initial seed leaves
Subclass	Rosidae	Roses, legumes, proteas, dogwoods, hydrangeas, mistletoes, euphorbias, grapes, many more
Order	Rosales	Rose family and eight others
Family	Hydrangeaceae	Hydrangea family
Genus	Hydrangea	From Greek hydro, “water,” and angeion, “vessel”
Species	arborescens	Woody 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:

The Missouri Botanical Garden

Patents.justia.com

Hydrangea arborescens ‘Dardom’ description by Thomas H. Kent, last updated 25 May 2020.

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

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

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

Range: Zones 4-9:

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