Primulas are extreamly varied and attractive group of plants. These are easily grown in moist shady places where there is good deal of humus such as leafmould. Gardener’s favorite is primula vulgaris however there are many different species and some of the best are given below.
P. beesiana is one one of the candelabra types – that is, the purple flowers grow in whorls spaced up the 60 cm (2 ft) stems.
P. bulleyana grows slightly taller, to 75 cm (2ift), and has orange, apricot, light red and buff coloured flowers. Grown together with Primula beesiana, they hybridize easily, and seed profusely, though moisture is vital, and a stream-side position in light shade perfect. Both flower May-June.
P. denticulata has a grey mealy coating on the leaves and stems, and rounded ball-like heads of lilac flowers, about 6 cm (2 in) in diameter. Primula denticulata flowering time is April-May.
P. florindae has bright yellow hanging flowers in large clusters at the top of 90 cm (3 ft) stems in June and July. It is fragrant.
The Juliana Primroses are very eye-catching with their glowing colours: yellow, purple, wine, crimson, blue, deep red and orange. They are small – 1 cm (4 in) – like well-drained cool soil, and flower in early-mid-spring.
The Primula group contains a marvellous collection of easily grown flowers, providing colour from March to August. With plenty of humus, it should always be possible to make use of the shaded parts of the garden for most of the species mentioned above, and many of the others, which will be described in catalogues. Division and seed are the usual methods of propagation. Also in conditions that suit the plants, self-sown seedlings frequently occur.