Crown (Coronilla glauca)

The Coronilla glauca is a perfect shrub to surprise. It is one of those that, as it has green leaves, goes unnoticed, but when it blooms it is quite a spectacle, since it is covered almost completely with beautiful yellow flowers.

In addition, it resists high temperatures well and is not affected by short periods of drought. Read on to find out more.

Origin and characteristics

It is an evergreen shrub whose scientific name is Coronilla valentina subsp. glauca or Coronilla glauca, popularly known as crown, English rue, sprigs of gold, coletuy, carolinas or spangle. It is native to the Mediterranean region, being found in the center and south of the Iberian Peninsula, on the islands of Mallorca and Menorca, and northwestern Africa, at an altitude from 0 to 1000 meters above sea level,

It reaches a height of between 50 and 100cm, erect and highly branched. The leaves are odd-pinnate, with leaflets in 2 or 3 pairs up to 2cm long. The flowers are yellow, 7-12mm long, and meet in umbels. The fruit is a 1-5cm long and hanging pod containing 1 to 10 seeds.

What are their cares?

Image – Wikimedia/ Júlio Reis

If you want to have a sequin specimen, we recommend providing it with the following care:

  • Location: it must be outside, in full sun.
  • Land:
    • Pot: you can use universal growing medium, or mix black peat with mulch and perlite in equal parts.
    • Garden: grows on calcareous soils.
  • Watering: about 3 times a week in summer, a little less the rest of the year.
  • Fertilizer: from early spring to late summer with fertilizers such as guano, manure or compost. You just have to know that if it is in a pot it is better to use liquid fertilizers, following the instructions specified on the container.
  • Multiplication: by seeds and cuttings in spring.
  • Pruning: late winter. It tolerates it quite well, so you can shape it into a bush or a sapling.
  • Pests and diseases: it is very resistant.
  • Rusticity: it resists frosts down to -7ºC.

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