Bulle’s primrose live up to their name and enchant in summer with their multi-tier inflorescences. This is how planting and care succeed.
Profile of Bulle’s primrose:
Scientific name: Primula x bullesiana
Plant family: primrose family (Primulaceae)
Other names: –
Sowing time: spring
Planting time: spring or autumn
Flowering period: June to August
Location: partially shaded
Soil quality: sandy to loamy, nutrient rich, humus rich
These information are for temperate climate!
Use in: flower beds, bouquets, group planting, pond planting, flower garden, natural garden, water garden
Winter hardiness: hardy, USDA Plant Hardiness Zones: 6
Bee and insect friendly: Yes
Plant characteristics and classification of Bulle’s primrose
Plant order, origin and occurrence of Bulle’s primrose
The Bulle’s primrose (Primula x bullesiana, often only referred to as Primula bullesiana) are hybrids that result from a cross between the yellow-flowering species Primula bulleyana (Bulley’s primrose) and Primula beesiana (candelabra primroses) with their purple flowers. The parent species Primula bulleyana is native to southwestern China, where the primrose likes to thrive on moist meadows and on river banks.
Characteristics of Bulle’s primrose
Bulle’s primrose form clusters, the height of the pretty flowers is about 30 to 60 centimeters (12 to 24 in).
The elongated, egg-shaped leaves are finely serrated and stand together in a basic rosette. The tall stems of Primula bullesiana are leafless.
The flowers are on top of each other, with several floors always blooming at the same time. The range of flower colors of the bee-friendly plants ranges from yellow, orange and pink to red and violet. The flowering period usually begins somewhat later than in other primrose species in June and lasts until July, sometimes even into August.
The fruits of these primroses are capsule fruits.
Bulle’s primrose – cultivation and care
Bulle’s primroses feel most comfortable in partially shaded areas.
The soil should be fresh to moist, but waterlogging should be avoided. A loamy, sandy substrate that is rich in humus and nutrients is ideal.
It is best to plant Bulle’s primrose in spring or autumn. To give them a good start, some compost is added to the soil when planting. The planting distance should be around 30 centimeters (12 in).
Care / Watering / Fertilization
During their growing season, the Primula Bullesiana hybrids need sufficient moisture. It is therefore important to water them regularly. They are also supplied with compost for spring shoots.
The Bulle’s primrose can best be propagated by division after flowering. Some hybrids also like to seed itself.
A division is recommended to rejuvenate or propagate Bulle’s primroses. A good time to do this is after flowering.
Diseases and pests
If the location is too wet, gray mold or root rot can appear on the floor primroses. Weevils, aphids or snails are occasionally found among the pests on the plants.
The Bulle’s primroses are quite frost hardy. As a precaution, they should only be covered during very severe night frosts. Potted plants are wintered frost-free.
Use in the garden
Bulle’s primroses come into their own in natural gardens, for example on the edge of water such as a garden pond or on the edge of woody plants. Beautiful companions are alumroot, irises, ferns and rhododendrons. The Primula Bullesiana hybrids are also suitable as cut flowers.
There are some different varieties of Primula Bullesiana hybrids available, which differ in color.