English dogwood

English dogwood: a deciduous, hardy shrub; native to southern Europe and is now found throughout the northern hemisphere.

Also knows as:
Philadelphus
Sweet mock orange

Related to:
Deutzia

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Philadelphus with leaf beetles in the flowers, photo: PlantEnPlagen
  • English dogwood is not poisonous, even to pets.

English dogwood(Philadelphus coronarius); a deciduous, hardy shrub, belonging to the hydrangea- family (Hydrangeacae). English dogwood is native to southern Europe and is now found throughout the northern hemisphere. The shrub is a fast grower, can grow up to five feet with a matching width. English dogwood blooms with strong-smelling, white flowers. Flowering time in late May/early June – attractive to bees, bumblebees and butterflies.
English dogwood likes slightly moist, calcareous soil. Preferably in a spot in full sun or partial shade.
English dogwood is a strong shrub: it tolerates poor soil, drought, air pollution and sea air well. Also, the shrub is not very susceptible to diseases and pests; except for leafhoppers and aphids. These are almost always present on English dogwood.
Firm pruning every three years keeps the shrub in shape. Pruning is best done after flowering in late August, early September. Older, woody branches can be pruned away to the ground; younger wood to three-quarters of its height. Remove dead and damaged branches as well as crossing branches.
During periods of drought, water English dogwood on sandy soil regularly.

Bugs

Aphids, photo Rasbak – CC BY-SA 3.0

Deformed and crumpled leaf: aphids. Often they are the Black bean aphid (Aphis fabae).

recognizing flee beetles
Flea beetles in the flowers of English dogwood, photo: PlantEnPlagen

Tiny beetles hide in the flowers and feed on the flower and young leaves: Flea beetle (Psylliodes).

Fungi & diseases

Leaf drops prematurely, initially yellow spots appear on the leaves, then the leaves die. Leaves may yellow and wilt prematurely: Bacterial canker (Pseudomonas syringae).

Other

Leaf yellowing (chlorosis): might be a sign of deficiency, for example magnesium. See Deficiency diseases.