Philadelphus — 7 species
Botanical species in the genus Philadelphus recorded in the PlantPeers database.

Philadelphus coronarius
Philadelphus coronarius
Family: Hydrangeaceae
Cultivation
Philadelphus coronarius is a very cold-hardy plant, being able to tolerate temperatures down to around -25°c when fully dormant. A very easily grown plant, succeeding in any moderately fertile soil, and also in thin soils over chalk. Grows well in heavy clay soils.
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Philadelphus delavayi
Philadelphus delavayi
Family: Hydrangeaceae
Cultivation
Philadelphus delavayi is a moderately cold-hardy plant, being able to tolerate short periods with temperatures down to around -15°c or lower when fully dormant. An easily grown plant, succeeding in any moderately fertile soil, and also in thin soils over chalk. Grows well in heavy clay soils.
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Philadelphus lewisii
Philadelphus lewisii
Family: Hydrangeaceae
Cultivation
Philadelphus lewisii is a moderately cold-hardy plant, being able to tolerate temperatures down to around -20°c or lower when fully dormant. It is found wild in areas where the mean annual precipitation is within the range 360 - 1,750mm. Succeeds in semi-shade but prefers a position in full sun where it will flower more freely.
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Philadelphus microphyllus
Philadelphus microphyllus
Family: Hydrangeaceae
Cultivation
Philadelphus microphyllus is a moderately cold-hardy plant, able to tolerate temperatures down to around -20°c when fully dormant. A native of hot and sunny climates, plants do not grow or flower so freely when grown in more maritime climates with their cooler summers Easily grown in any moderately fertile preferably dry soil, succeeding in thin soils over chalk and tolerating poor soils. Grows well in heavy clay soils.
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Philadelphus pubescens
Philadelphus pubescens
Family: Hydrangeaceae
Cultivation
Philadelphus pubescens is a moderately cold-hardy plant, being able to tolerate short periods with temperatures down to around -15 to -20°c when fully dormant. Easily grown in any moderately fertile soil, succeeding in thin soils over chalk. Grows well in heavy clay soils.
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Philadelphus purpurascens
Philadelphus purpurascens
Family: Hydrangeaceae
Cultivation
Philadelphus purpurascens is a moderately cold-hardy plant, able to tolerate temperatures down to around -15 to -20°c when fully dormant. Easily grown in any moderately fertile soil, succeeding in thin soils over chalk. Prefers a dry soil.
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Philadelphus × virginalis
Philadelphus × virginalis
Family: Hydrangeaceae
Cultivation
Philadelphus × virginalis is a moderately cold-hardy plant, able to tolerate temperatures down to around -15 to -20°c when fully dormant. Easily grown in any moderately fertile soil, succeeding in thin soils over chalk. Grows well in heavy clay soils.
Full cultivation guide →