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Coronilla valentina ssp. glauca

Scientific Name: Coronilla valentina ssp. glauca

Family: Fabaceae

Category: Dicot

Growth:

Duration:

Other Names:

       

Coronilla valentina subsp. glauca 'Citrina'

This attractive shrub, often referred to as 'Citrina', is a cultivar of Coronilla valentina subsp. glauca, known for its lemon-yellow flowers and blue-grey foliage. It's a popular choice for gardeners seeking winter and early spring blooms.

Common Names

  • Glaucous scorpion-vetch
  • Bastard senna 'Sulphurea'
  • Mediterranean crownvetch
  • Carolina del jardin (Spanish)
  • Coronilla (Spanish)
  • Ruda inglesa (Spanish)
  • Coletuy (Spanish)
  • Coronille glauque (French)

Taxonomy and Nomenclature

  • Scientific Name: Coronilla valentina subsp. glauca 'Citrina'
  • Family: Papilionaceae (Fabaceae)
  • Synonyms: Coronilla glauca (for the subspecies glauca)

Considerations for Pets

  • The text mentions that the plant has pea-like flowers, which could be attractive to pets.

Distribution and Habitat

  • Native to Southern Europe, particularly the Iberian Peninsula (Portugal).
  • Often found in the Mediterranean region.
  • Thrives in warm, sunny, and sheltered locations.

Morphological Characteristics and Growth Habits

  • Small, evergreen shrub.
  • Typically reaches a height and width of 0.6 to 1 meter.
  • Pinnate leaves with a blue-grey hue.
  • Fragrant, lemon-yellow, pea-like flowers that appear in clusters, primarily in late winter and early spring, but may produce some flowers throughout the year.
  • Can be fan-trained on wires.
  • Broom-like shrub.
  • Dense, rounded, compact shrub with pinnate leaves, usually with 5-7 leaflets.

Cultivation

  • Prefers well-drained soils and full sun.
  • Fertile, humus-rich, moist, well-drained soil is ideal.
  • Suitable for sheltered sites.
  • Propagated by seed or semi-hardwood cuttings.

Awards

  • The subspecies C. valentina subsp. glauca and its cultivar 'Citrina' have received the Royal Horticultural Society's Award of Garden Merit (AGM).

Quirky Facts

  • One source describes it as a "gawky plant" but also notes its clusters of yellow scented pea flowers. This suggests that its aesthetic appeal may be subjective.
  • Another source describes a variegated form of the plant as possibly "obscure," but hopefully not for long.

Further Information

  • RHS (Royal Horticultural Society) provides help and information on Coronilla valentina subsp. glauca 'Citrina'.
  • Deeproot Plant Base is an online database with information on Coronilla valentina ssp. glauca 'Citrina'.