Climbing and rambling roses

52-457-1
52-457-2

Perennial Blue™

Perennial

Mehv9601 – Bernard F. Mehring

Mid-saturated crimson-purple base colour with a delicate silvery bloom. Slight bluish tinge in cool weather. - rambler, climbing rose - very faint, barely noticeable scented rose - fresh, fruity character

– Elegant purple clusters in continuous waves
– Vigorous rambler for arches, walls and fences
– Enjoys cooler sites and tolerates partial shade
– Proven garden performance with ADR distinction
– Reliable medium disease resistance in the garden
Special feature: Decorated with Baden-Baden Silver Medal and Baden bei Wien 1st Prize.
Consistent quality – Style in the garden
Perennial Blue™
pharmaROSA® ORIGINAL 2-litre own-root potted rose
22,00 £
Unfortunately, we are currently unable to ship to the United Kingdom; we only deliver to countries within the European Union. For more information, please contact us!
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PERENNIAL BLUE™ – purple climbing rambler rose - Mehring

With its velvety mauve‑purple clusters and relaxed cottage‑garden charm, PERENNIAL BLUE™ brings colour, texture and rhythm to front and back gardens alike, clothing arches, fences and small house walls with airy, small semi‑double blooms. This ADR‑recognised rambler offers reliable flowering from early summer and then again in a generous second flush, giving you a long season of interest with relatively modest care. Own‑root growth supports long‑term stability, gradually forming a well‑balanced framework that settles securely even where stronger winds and rain call for dependable anchoring in the garden. Its climbing habit works beautifully in compact spaces, making vertical features out of pergolas and boundary structures without overwhelming a typical family plot. Over time you can expect the classic rose development arc – first the roots establish, then the framework extends, and by the third year the full ornamental display emerges as a coherent, flower‑laden structure. Medium disease resistance and straightforward seasonal care suit time‑pressed gardeners who still value thoughtful design around the home.


Perennial Blue™ in close-up, showing its very faint, fresh fruity fragrance.
Red, spherical hips on the stem of Perennial Blue™.

Usage options

Target areaReasoning
Front‑garden arch or porch arbour Compact, cluster‑flowered growth and moderate height make this rose ideal for framing a front path or porch without overshadowing windows or doors. Recurrent flowering keeps the entrance welcoming over a long season, even for beginners.
Clothing a fence in a family garden The climbing habit and 2.4–3.8 m height allow it to soften standard garden fencing with a living curtain of mauve‑purple clusters, providing privacy and seasonal colour while remaining manageable with basic annual pruning for homeowners.
Small pergola beside a patio or seating area Its medium vigour covers a modest pergola or sitting area without becoming unmanageable, while the semi‑double flowers and gentle fragrance lend a relaxed cottage feel that suits informal terraces used by families.
Training against a house wall or garage Medium maintenance needs and own‑root resilience make it a dependable choice for vertical greening of walls, where it can be fan‑trained and renewed over time without complex techniques, reassuring busy gardeners.
Classic cottage‑style mixed border backdrop The airy clusters and purple tones blend easily with perennials and traditional cottage favourites, adding height and colour without looking stiff, providing a soft, romantic backdrop prized by cottage‑garden enthusiasts.
Feature on an obelisk or tall support in a bed Its moderate spread lets you spiral it around an obelisk or tripod, creating a vertical focal point in a small bed where space is tight but impact matters, a helpful solution for space‑conscious urbanites.
Family play‑garden boundary or screening strip Used along boundaries, it offers seasonal screening and colour without forming a rigid hedge; own‑root growth allows gradual shaping and renewal, supporting long‑term, low‑fuss structure valued by practical planners.
Exposed, wind‑touched corner trellis Once established on its support, the rambling framework and own‑root anchorage cope well where trellises catch the weather, providing a stable, flowered cover that suits those dealing with breezier plots and coastal‑influenced sites.

Styling ideas

  • Cottage Archway – Train over a slim metal or wooden arch, underplant with chives and dwarf French marigolds for a soft, edible‑ornamental mix – ideal for relaxed cottage‑style front‑garden owners.
  • Velvet Wall Veil – Fan‑train along wires on a sunny wall, pairing with pale foxgloves and white campanulas below to highlight the mauve‑purple clusters – suited to homeowners wanting elegant but simple structure.
  • Family Pergola – Let it ramble over a small seating pergola with fragrant herbs at the base, creating a dappled, flower‑strewn roof – perfect for families seeking a pretty, informal outdoor room.
  • Border Beacon – Spiral around a tall obelisk in a mixed border, surrounded by airy grasses and lilac perennials to echo its tones – good for beginners wanting a strong focal point without complex care.
  • Soft Screen – Weave through trellis panels along a boundary, interplant with cypress spurge ‘Fens Ruby’ for contrasting foliage – attractive to urban gardeners needing privacy and seasonal colour in limited space.

Technical cultivar profile
PropertyData
Name and registration Rambler and large flowered climbing rose; registered as Mehv9601, traded as PERENNIAL BLUE™, Perennial, Mehv9601; exhibition rambler rose category, verified cultivar authenticity.
Origin and breeding Bred by Bernard F. Mehring in the United Kingdom from Super Excelsa × Veilchenblau; first distributed by Eurosa (Germany) and introduced to the market in 2003.
Awards and recognition Holder of ADR certification in Germany (2013), Baden‑Baden Silver Medal (2006) and first prize at Baden bei Wien (2014), reflecting strong garden and show performance.
Growth and structural characteristics Climbing rambler reaching about 240–380 cm high with a 150–260 cm spread; moderately dense, mid‑green, slightly glossy foliage and moderate prickliness; growth suited to arches, pergolas and walls.
Flower morphology Semi‑double, cup‑shaped blooms with 13–25 petals, produced in large clusters of small flowers; remontant, with a notably abundant second flush prolonging display into later summer under normal garden care.
Colour data and phenology Mid‑saturated crimson‑purple with silvery bloom and cool‑weather bluish tinge; buds dark magenta, fading towards greyish lilac in heat; colour richest in cooler spells, giving varied tones through the flowering period.
Fragrance and aroma Fresh, lightly fruity character with very faint scent; fragrance is generally discreet in the garden, allowing flexible siting near seating areas or doors without overwhelming more strongly scented companions.
Hip characteristics Forms small spherical red hips about 6–10 mm across in moderate quantities, extending visual interest into autumn and offering subtle wildlife value without creating heavy self‑seeding issues.
Resistance and winter hardiness Rated to around −21 to −18 °C (H7, USDA 6b, Swedish zone 3); medium resistance to black spot, powdery mildew and rust, benefiting from good airflow and routine monitoring in humid or high‑pressure seasons.
Horticultural recommendations Best on pergolas, arches, fences and walls with basic tie‑in and pruning; tolerates partial shade, prefers regular watering, and should be spaced 190–300 cm apart depending on use to allow full framework development.

PERENNIAL BLUE™ offers long-season purple clusters, manageable climbing growth and durable own-root vigour for arches, walls and pergolas, making it a thoughtful choice if you want a reliable, characterful rambler.

Detailed product attributes

Product Identification Data

Product Name: PERENNIAL BLUE™ – purple climbing rambler rose - Mehring
Product Type: pharmaROSA® ORIGINAL - 2-litre own-root potted rose
Cultivar Authenticity: Verified:23.09.2025
Cultivar Quality Rating: premium silver
Item Number: [514] 52-457 (14.02.2026) pharmarosa.co.uk

Name and Registration

Meaning of Cultivar Name: The name "Perennial Blue" means "everlasting (continuously flowering) bluish-purple".
Original Trade Name: Perennial Blue™
Current Trade Name: Perennial Blue™ Perennial Mehv9601
Rose Group: Rambler, Large Flowered Climber
Commercial Type: rambler, climbing rose
Commercial Group: Climbing rose
Exhibition Category: exhibition rambler rose; climbing rose
Collection: Perennial

Origin and Breeding

Initial Distributor: Eurosa (Germany)
Registration Year: Data not available
Breeder: Bernard F. Mehring
Breeding Company / Institution: unknown / no data
Breeding Year: United Kingdom,
Parentage: Super Excelsa × Veilchenblau

Awards and Honours

Competition and Show Awards: Baden-Baden Silver Medal (2006); Baden bei Wien – 1st Prize (2014)

Growth and Structural Characteristics

Height: 7.9-12.5ft (240-380 cm)
Spread: 4.9-8.5ft (150-260 cm)
Growth Habit: climbing
Foliage: The variety's foliage is moderately dense, with leaves that have a slightly glossy surface and a mid‑green shade.
Prickliness: moderately thorny
Self-Cleaning Description: No data on self-cleaning.
Self-Cleaning Intensity: No data available on self-cleaning strength.

Flower Morphology

Petal Count: 13-25
Flower Fullness: semi double
Flower Shape: cup (cup-shaped)
Flower Size: S (0,5-1,5 in)
Inflorescence Type: cluster-flowered, large
Colour Code: ARS code: m RHS code: 77A (outer), 77B (inner)
Repeat Flowering: Remontant; its second flowering is also abundant.

Colour Data and Phenology

Colour: purple
Flower Colour Description: Mid-saturated crimson-purple base colour with a delicate silvery bloom. Slight bluish tinge in cool weather.
Closed Bud: Dark purplish‑magenta with a deeper-toned shading at the tip.
Newly Opened Flower: Vivid mauve‑purple, outer petal edges slightly crimson.
Full Bloom: Velvety lavender-purple with a paler pastel lilac transition towards the centre.
Before Fading: Greyish-lilac fading with a silvery tone on the petal edges.
Colour Fading Description: In strong sunlight and heat the petals may fade; in cooler conditions their colour is more intense.

Fragrance and Aroma

Fragrance Strength: very faint, barely noticeable scented rose
Fragrance Character: fresh, fruity character
Pollinator Attraction: Semi-double, 13–25-petalled flowers moderately attract pollinators because the semi-double bloom form can partially obscure the stamens, reducing the accessibility of pollen and nectar.
Pollinator-Friendly Rating: Due to its semi-double flowers, it is considered partially pollinator-friendly.

Hip Characteristics

Hip Shape: spherical
Hip Colour: red
Hip Comment: Produced in moderate quantities, 6–10 mm in diameter, spherical red rose hips.

Resistance and Hardiness

Hardiness (°C): -21–-18 °C
Heat and Drought Tolerance Description: No reliable data are available on long‑term drought tolerance; requires moderate watering.
Disease Resistance: medium
  • powdery mildew – medium
  • black spot – medium
  • rust – medium

Horticultural Recommendations

Recommended Planting Distance: for mass planting 200 cm, for hedging 190 cm, as a specimen plant 300 cm
Planting Density: in square planting 0,3 plants/m², in hexagonal arrangement 0,3 plants/m²
Partial Shade Tolerance: Can be grown in partial shade
Maintenance Requirement: Maintenance requirement medium; occasionally requires pest and disease control.
Primary Uses: pergola, arch, fence, wall

Comments

Strengths: Consistent quality – Style in the garden
Companion Plants: Allium schoenoprasum - chives Tagetes patula - dwarf French marigold Euphorbia cyparissias 'Fens Ruby' - cypress spurge
Comment: -
PERENNIAL BLUE™ – purple climbing rambler rose - Mehring
Mid-saturated crimson-purple base colour with a delicate silvery bloom. Slight bluish tinge in cool weather. - rambler, climbing rose - very faint, barely noticeable scented rose - fresh, fruity character
The rose webshop. - purple - rambler, climbing rose - Perennial Blue™ - (7.9-12.5ft (240-380 cm))
Inflorescence: cluster-flowered, large Height: 7.9-12.5ft (240-380 cm) Flower shape: cup (cup-shaped) Winter hardiness: 6b purple - Eurosa (Germany) rambler, climbing rose - Flower size: !- Flower size: !- - Height: 7.9-12.5ft (240-380 cm) Height: 7.9-12.5ft (240-380 cm) - Flower fullness: semi double Perennial Blue™ - Roses in the garden | pharmaROSA® Original - premium silver Bernard F. Mehring

We showcase the external appearance of the roses available for online purchase from our webshop.


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Information

In what condition do we dispatch the rose from our online webshop?

Let us ask ourselves the question: What would I like to use the rose for?
Flower? – Location? – Screening? – Fragrance? – Height? – Breeder? – Rose hip?

Rose purchasing information
Methods of payment – Delivery charges – Delivery – Complaints handling

Care guide

Our product is a rose grown with pharmaROSA®’s unique cultivation technology!

2-litre, own-root, potted rose.
With a shoot system appropriate to the season.
With a root system that thoroughly permeates the growing medium.
Quality compliant with the requirements of the E.N.A. (European Nurserystock Association).
Supplied in unique packaging that prevents damage.
Can be planted during frost-free periods.
True-to-variety rose bush with a unique identifier.

The pharmaROSA® own-root potted rose is a well-rooted plant that supports reliable establishment when planted and cared for properly, so it can be planted whenever the soil is not frozen.


Crop overview: several varieties and growth stages in a short crop section.
Shoot system: intensive growth of fresh basal shoots on a young plant.
Root system: demonstration of a vigorous root system permeating the growing medium, by removing the pot.
Balance: mature plant with root system and shoots in harmony with each other.

Information about the videos
The video series is not a “seasonal showcase”; it illustrates the essence of pharmaROSA® own-root cultivation in a tangible way: how the plant is built up, what the root system is like and how the shoot system regenerates. The recordings were therefore made at different times and with plants at various stages of development, so mixed foliage levels and differing stages of growth may appear in the videos. They are not a ‘sample’ of the batch dispatched, but a visual explanation of how the technology works. The current condition of the rose available to order — typical for the given period and similar to what you can expect to receive in the parcel — is shown in the upper part of the product page.

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Product types

Pages for private customers
Garden roses for the family garden, with minimal care  → ORIGINAL®
Premium garden roses – instant impact, a truly showpiece garden  → EXTRA®
Pages for professionals and private customers
Roses for public spaces – large areas, sustainable maintenance  → NATURAL®
Roses for projects – hedge and row planting, fast implementation  → RAPID®
For professional partners only
Production – propagation material for garden roses, wholesale  → NEONATAL®

Company details

PharmaRosa Ltd.
Company registration number: 01-09-717479
VAT number: 13075314-2-43
Plant health registration no.: HU130721
Bank account (IBAN):
HU85117631891388688400000000
BIC (SWIFT): OTPVHUHB
Bank name: OTP Bank Nyrt.