Overview
Primula florindae 'Rasp Red' is a rosette-forming, clump-forming perennial in the genus Primula, part of the Primulaceae family, with deciduous, semi-evergreen or evergreen; rosettes of crinkled or mealy leaves foliage. Primula florindae 'Rasp Red' grows best in partial shade; alpines and auriculas take more sun, and tolerates fertile humus-rich loam; alpine kinds need gritty free-draining soil soils and neutral to slightly acid; asiatic species dislike lime pH. Its UK hardiness is rated H4-H7 depending on group. Suggested uses include bog gardens, streamside planting and moist woodland gardens. It is native to Southeastern Tibet.
About
Primula florindae 'Rasp Red' is a rosette-forming, clump-forming perennial Primula that favours reliably moist sites. It bears basal rosettes of crinkled or mealy leaves and produces its spring flower display between February and June. Plant in partial shade on a north, east or west-facing, sheltered spot. It suits boggy ground and stream margins in moist woodland settings.
Wikipedia contributors, CC BY-SA 4.0 — Primula florindae
About the genus
Primula is a genus of herbaceous flowering plants in the family Primulaceae. They include the primrose, a familiar wildflower of banks and verges. Other common species are P.
Wikipedia contributors, "Primula", CC BY-SA 4.0 — Primula
In the garden
Primula florindae 'Rasp Red' originates from southeastern Tibet and belongs to the Primulaceae family. As a rosette-forming perennial it develops clumps of crinkled or mealy basal leaves that set the structure for its spring flowering period, which runs from February to June. For cultivation, place the plant in partial shade on a north, east or west-facing, sheltered site and give it fertile, humus-rich loam that remains reliably moist — this matches the needs of candelabra and woodland types. Avoid alkaline, lime-rich soils as Asiatic species prefer neutral to slightly acid conditions. While alpine primulas need sharply drained, gritty mixes, Primula florindae forms perform best where water is available rather than where soil dries out. Winter hardiness spans H4 to H7, that is average to fully hardy in much of the UK, provided roots do not run dry through cold spells. Use Rasp Red at the edges of bog gardens, along streams or in damp woodland borders where its clump habit sits well against taller moisture-loving perennials. Expect the basal rosettes to remain the plant’s most persistent feature as it carries its spring flowers from February to June.
Growing conditions
Best soil and position for Primula
- Sunlight
- Partial shade; alpines and auriculas take more sun
- Soil type
- Fertile humus-rich loam; alpine kinds need gritty free-draining soil
- Soil pH
- Neutral to slightly acid; Asiatic species dislike lime
- Soil moisture
- Reliably moist for candelabra and woodland kinds; sharply drained for alpines
- Aspect
- North, east or west facing
- Exposure
- Sheltered
- UK hardiness
- H4-H7 depending on group
Plant details
Primula florindae 'Rasp Red' size, habit and characteristics
- Plant type
- Perennial
- Habit
- Rosette-forming, clump-forming
- Foliage
- Deciduous, semi-evergreen or evergreen; rosettes of crinkled or mealy leaves
- Suggested uses
- Bog gardens, streamside planting, moist woodland gardens
- Native to
- Southeastern Tibet
Care notes
Pruning and caring for Primula florindae 'Rasp Red'
- Cultivation
- Match the group to the site and these are easy plants; ignore the distinction and they are short-lived. Candelabra and sikkimensis types want ground that never dries, so a streamside or bog garden suits them perfectly, while auriculas and the alpine species need gritty compost, protection from winter rain, and are traditionally grown in pots in an open frame. Woodland primulas ask for nothing more than leaf mould and dappled shade.
- Pruning
- No pruning required. Deadhead to prevent self-seeding where it is not wanted, and remove dead outer leaves from the rosettes to reduce rot.
- Propagation
- Divide after flowering, ideally every second or third year, as congested rosettes decline. Seed germinates best sown fresh and given a cold period, and many species self-sow freely.
- Pest resistance
- Vine weevil is the principal enemy, especially in pots, along with slugs, aphids and red spider mite under glass.
- Disease resistance
- Prone to grey mould and crown rot in stagnant damp. Primula brown core, a root rot, causes gradual decline in long-established plantings.
Frequently asked questions
How do I grow Primula florindae 'Rasp Red'?
Match the group to the site and these are easy plants; ignore the distinction and they are short-lived. Candelabra and sikkimensis types want ground that never dries, so a streamside or bog garden suits them perfectly, while auriculas and the alpine species need gritty compost, protection from winter rain, and are traditionally grown in pots in an open frame. Woodland primulas ask for nothing more than leaf mould and dappled shade.
Where is the best place to plant Primula florindae 'Rasp Red'?
Primula florindae 'Rasp Red' prefers partial shade; alpines and auriculas take more sun. It suits sheltered positions.
What soil does Primula florindae 'Rasp Red' need?
Primula florindae 'Rasp Red' grows best in fertile humus-rich loam; alpine kinds need gritty free-draining soil soil. It prefers neutral to slightly acid; asiatic species dislike lime soil. Aim for soil that stays reliably moist for candelabra and woodland kinds; sharply drained for alpines.
How do I prune Primula florindae 'Rasp Red'?
No pruning required. Deadhead to prevent self-seeding where it is not wanted, and remove dead outer leaves from the rosettes to reduce rot.
Is Primula florindae 'Rasp Red' hardy in the UK?
Primula florindae 'Rasp Red' has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.
How do I propagate Primula florindae 'Rasp Red'?
Divide after flowering, ideally every second or third year, as congested rosettes decline. Seed germinates best sown fresh and given a cold period, and many species self-sow freely.
More in the Primula genus
- Primula aurantiaca
- Primula burmanica
- Primula helodoxa
- Primula microdonta
- Primula waltonii
- Primula 'Asthore Hybrids'
- Primula 'Devon Cream'
- Primula 'Ravenglass Vermilion'