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Primula x kewensis, family Primulaceae, is a hybrid resulting from the cross between Primula verticillata, native to Yemen and Arabia, and Primula floribunda, native to the northwest Himalayas. It appeared spontaneously in the Kew gardens around 1897, and fertile individuals readily reseed themselves.
The rosette of crenate oblong leaves bears stems 20 to 35 cm tall with tiered umbels of bright yellow flowers. Some specimens exhibit a fine white farina on the leaves and stems, while others do not.
Not hardy, it is easily grown in a pot that will find its place in the conservatory in winter. Well-drained soil, good light, moderate watering. It reseeds itself spontaneously. In its natural habitat, its flowering extends from February to April; in cultivation, it blooms from winter to spring depending on conditions.