How to plant and cultivate the philadelphus?

How to plant and cultivate the philadelphus?

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The characteristics of the philadelphus

  • Type: flowering shrub
  • Height: from 80 cm to 1 m, from 1 to 2 m, from 2 to 5 m
  • Flower colors: White
  • Desired exposure: sunny, semi-shaded
  • Type of soil: rich in humus
  • Foliage: spent
  • Interview: frequent watering
  • sanitizer: no
  • diseases: powdery mildew
  • variety: philadelphus burfordensis, philadelphus inodorus, philadelphus grandiflorus, philadelphus microphyllus…

Origins and peculiarities of the philadelphus

The philadelphus, also called seringat or jasmine poets is a flowering shrub of the hydrangea family. Robust and easy to maintain, its flowering is particularly pleasant. Indeed, at the time of summer, the syringe sports pretty little white flowers very fragrant whose smell reminds that of the orange tree. They are also so fragrant and their fragrance so persistent that in the language of flowers, the philadelphus symbolizes memory!

The genus philadelphus includes about 50 species distributed in temperate regions of the globe. The most commonly cultivated species is the philadelphus coronarius or garden syringe, but we can also cite the philadelphus microphyllus, particularly fragrant, or the "ermine coat" whose small size (1 m) makes it a shrub very suitable for balconies or other tight spaces.

Indeed, because of the large number of existing varieties as well as its robustness and ease of cultivation, the philadelphus can be integrated into a wide range of environments. Thus, it can just as easily join a hedge within a garden, a flower bed in the open ground or be planted isolated on a ground as decorate an entry or even a balcony for the less tall species cultivable in pots.

Planting and flowering of the philadelphus

The philadelphus is an extremely robust shrub that can grow in all types of soil, but with better growth in rich, humus soil. However, it is relatively greedy in the sun and will appreciate good exposure.

Regarding thewatering the philadelphus, again, you will not have excessive work: just be sure to water it between spring and autumn so that its soil is always moist. Do not have a heavy hand, however: in case of excessive humidity, the roots of the shrub may rot.
Its flowering occurs during the summer (May, June and July) and you can then enjoy the orange scent released by its small white or sometimes pink flowers.

Maintenance of the philadelphus

The syringe is the friend of lazy gardeners: it requires very little maintenance! Indeed, after planting in the open ground, you can wait 3 years before pruning it! In the spring, you can add compost or fertilizer if you are growing your philadelphus in pots, but it is not compulsory.

After flowering, fold back the long deflowering stems so as not to tire the plant and stimulate regrowth.

Diseases and parasites of the philadelphus

The syringe is not very susceptible to diseases in general, but can however be affected by powdery mildew - even if it is rather rare, because it is a shrub very resistant to fungi in general.

In terms of parasites, aphids can also affect it; as the shrub is very sensitive to it, try to act in a preventive way (place your philadelphus near a pot of lavender for example). Alternatively, you can treat a philadelphus attacked by aphids by spraying your shrub with a solution of soapy water or a decoction of tenesia.


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