Climbing and rambling roses

52-731-1
52-731-2

Alaska®

Klettermaxe®

KORjoslio – Tim -Hermann Kordes

Silky, pure cream-white base colour, with a whisper of pinkish tint along the edges of the outer petals. - climber, climbing rose - mild, restrained scented rose - subtle, delicately sweet fragrance

– Award-winning climbing rose for arches and walls
– Large, very double, elegant creamy-white blooms
– Reliable repeat flowering with abundant second flush
– Good heat and moderate drought tolerance
– Mild, delicately sweet fragrance for close enjoyment
Special feature: Exceptionally winter-hardy climber, bred for cold climates.
Long-term presence – Supports local wildlife
Alaska®
darinaROSE® ORIGINAL 2-litre own-root potted rose
22,70 £
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!
5 (9105)
facebook   twitter

ALASKA® – cream-white climbing rose – Kordes

Create a storybook corner in your garden with ALASKA®, a cream-white climbing rose designed for romance, everyday comfort and reassuring reliability. Its large, very full blooms repeat generously through summer, dressing arches, pergolas and fences in softly glowing cream and gentle light. Bred by Kordes for excellent cold tolerance, it copes calmly with cool winds and unsettled weather, even in exposed, breezy plots where many climbers struggle with driving rain. As an own-root plant in the pharmaROSA® ORIGINAL 2-litre pot, it anchors securely, matures steadily and offers an easy-care route to long-term beauty. Expect a natural development rhythm – roots in the first year, more shoots in the second, full ornamental value by the third – giving you a dependable future focal point beside terrace, lawn or kitchen-garden path.


Usage options

Target areaReasoning
Arbour or arch near a seating area The large, double cream-white flowers and steady repeat flush create a romantic canopy that suits afternoon tea or evening unwinding, while the mild fragrance feels present yet not overpowering for close seating areas, ideal for those seeking cosiness.
Pergola framing a family terrace ALASKA® builds a strong climbing framework over time, giving stable cover for pergolas without demanding complex pruning; own-root growth means it recovers well from winter or accidental damage, reassuring for beginners.
Clothed fence in a small to medium garden Its moderate height and 80–160 cm spread make it easy to manage along an average garden fence, creating a soft, traditional boundary that remains attractive for many years thanks to its long-lived own-root constitution, perfect for the practical homeowner.
Feature climber against a sunny wall The cultivar appreciates sun and tolerates heat and moderate drought, so once established on a house or garage wall it flowers dependably with modest watering, suiting the routines of a busy household.
Rose-and-herb cottage border Clustered, cut-rose-style blooms in calm cream-white blend easily with herbs, gypsophila and irises, giving a soft cottage look without clashing colours, which appeals to lovers of romantic planting.
Traditional entrance or driveway arch Good winter hardiness and award-winning garden performance mean it holds its own through harsher seasons, so an entrance arch remains well-clothed rather than bare, a reassuring choice for long-term-minded planners.
Large container by a patio or balcony edge In a 40–50 litre or larger container with good drainage, ALASKA® can be trained up a slim obelisk or trellis, bringing climbing roses to paved spaces while remaining simple to water and feed, convenient for urban gardeners.
Wildlife-friendly, low-intervention corner Occasional small orange-red hips, along with steady structural cover, add subtle seasonal interest and some support for local birds, even where you keep maintenance light in breezier, rain-exposed spots, appreciated by nature-conscious families.

Styling ideas

  • Cottage Archway – Train ALASKA® over a simple wooden arch, underplant with Verbena hastata ‘Pink Spires’ and soft catmint for a pastel, country-lane feel – ideal for romantic style seekers.
  • Kitchen-Garden Screen – Run it along a wire-strung fence beside raised vegetable beds, mixing with herbs and perennial geraniums to separate work and play areas – for practical family gardeners.
  • Evening Pergola – Let its cream blooms catch the last light above a seating pergola, with white foxgloves and grasses below to extend the calm palette – for those who linger outdoors after work.
  • Front-Door Welcome – Flank the entrance with two matching arches or wall trellises, combining ALASKA® with evergreen box and lavender for year-round structure – suited to homeowners wanting classic kerb appeal.
  • Patio Container Trellis – Grow it in a 50-litre tub with a narrow obelisk, adding trailing thyme and gypsophila around the base for an airy, portable display – perfect for balcony or terrace users.

Technical cultivar profile
ParameterData
Name and registration Large-flowered climbing rose from the Klettermaxe® collection; registered as KORjoslio, marketed as Alaska® Klettermaxe®; exhibition name Future in American Rose Society registers.
Origin and breeding Bred by Tim-Hermann Kordes, W. Kordes & Sons, Germany from ‘Moonlight’ × unnamed seedling; selected 2005, introduced 2014 with EU PBR and later USA plant patent protection.
Awards and recognition Highly decorated climber with Certificat de Mérite at Bagatelle 2014, gold medals at Kortrijk and La Tacita, first prizes at Lyon and Baden, and Best Climber at Belfast 2018.
Growth and structural characteristics Climbing habit reaching about 180–280 cm high with 80–160 cm spread; moderately thorny, medium-green, slightly glossy foliage; moderate self-cleaning so some deadheading improves overall appearance.
Flower morphology Large, very double high-centred blooms with over 40 petals, borne mainly in clusters; strongly remontant with abundant second flush, giving extended display suitable for cutting and vertical accents.
Colour data and phenology Cream-white base colour with delicate pink veiling on buds; flowers open with buttery centres and faint blush, maturing to pearly white; colour holds very well with minimal fading under normal garden conditions.
Fragrance and aroma Displays a mild, delicately sweet fragrance that is noticeable at close range without dominating nearby seating areas; very double form conceals stamens, so it is grown mainly for visual effect.
Hip characteristics Rosehip set is usually light due to very double flowers; where formed, hips are small, spherical and orange-red, around 7–11 mm diameter, adding modest late-season ornamental value.
Resistance and winter hardiness Rated to around -21 to -18 °C (RHS H7, Swedish Zone 3, USDA 6b); tolerates heat and moderate drought; disease resistance is medium, so occasional protection may be needed in high-pressure seasons.
Horticultural recommendations Best on sunny supports such as arches, pergolas or walls; allow 140–240 cm spacing depending on use; in heavier clay or chalk soils, ensure improved drainage and support with regular tying and light pruning.

ALASKA® offers steady repeat flowering, dependable cold-hardy structure and long-lived own-root resilience for arches and pergolas, making it a thoughtful choice if you prefer beauty that quietly endures.

Detailed product attributes

Product Identification Data

Product Name: ALASKA® – cream-white climbing rose - Kordes
Product Type: darinaROSE® ORIGINAL - 2-litre own-root potted rose
Cultivar Authenticity: Verified:22.10.2025
Cultivar Quality Rating: premium silver
Item Number: [423] 52-731 (14.02.2026) darinarose.co.uk

Name and Registration

Meaning of Cultivar Name: The name "Alaska" refers to the northernmost US state, and it signifies the cultivar's excellent winter hardiness and cold tolerance.
Cultivar Synonym: Future®
Current Trade Name: Alaska® Klettermaxe® KORjoslio
Rose Group: Large-Flowered Climber
Commercial Type: climber, climbing rose
Commercial Group: Climbing rose
Exhibition Category: large-flowered climber
Collection: Klettermaxe®

Origin and Breeding

Initial Distributor: W. Kordes’ Söhne (Germany)
Registration Year: 2014 (EU PBR); 2017 (USA plant patent)
Breeder: Tim -Hermann Kordes
Breeding Company / Institution: W. Kordes & Sons (Klein Offenseth -Sparrieshoop, Germany)
Breeding Year: Germany, 2005
Parentage: ‘Moonlight’ (LCl, Kordes 1995) × unnamed breeding line

Awards and Honours

Competition and Show Awards: Bagatelle (Paris) – Certificat de Mérite (2014); Kortrijk / Courtrai – Gold Medal (2014); La Tacita – Gold Medal, Best Climber (2016); Lyon – 1st Prize (2016); Baden bei Wien – 1st Prize (2017); Belfast – Best Climber (2018)

Growth and Structural Characteristics

Height: 5.9-9.2ft (180-280 cm)
Spread: 2.6-5.2ft (80-160 cm)
Growth Habit: climbing
Foliage: The variety has moderately dense foliage, with leaves that have a slightly glossy surface and a medium-green shade.
Prickliness: moderately thorny
Self-Cleaning Description: Some of the spent flowers remain on the plant and require manual removal.
Self-Cleaning Intensity: self-cleaning moderate

Flower Morphology

Flower Fullness: very double-flowered
Flower Shape: high-centred, pointed-budded (cut-rose type)
Flower Size: L (2,75-3,95 in)
Inflorescence Type: clustered
Colour Code: ARS code: wh RHS code: 155C (outer), 155D (inner)
Repeat Flowering: Remontant; the second flowering is also abundant.

Colour Data and Phenology

Colour: cream-white
Flower Colour Description: Silky, pure cream-white base colour, with a whisper of pinkish tint along the edges of the outer petals.
Closed Bud: Ivory white, with a delicate pink veil on the tips, slightly opalescent in the light.
Newly Opened Flower: Pure creamy-white petals with a pale buttery centre and a soft pink blush appearing on the outer edges.
Full Bloom: Uniform matte creamy-white surface, with the pinkish tone almost faded and the inner petals appearing milky white.
Before Fading: The petals fade to pearly white, with a slight creamy tinge at the outer edges and a barely perceptible pink flush.
Colour Fading Description: The colour holds well, fading only slightly; the outer petals of the buds are sometimes slightly pink-tinged.

Fragrance and Aroma

Fragrance Strength: mild, restrained scented rose
Fragrance Character: subtle, delicately sweet fragrance
Pollinator Attraction: The double flower form, with the stamens largely concealed and difficult to access, makes it less attractive to pollinators compared with simple or semi‑double forms.
Pollinator-Friendly Rating: Its very double flowers hide the stamens, making it primarily an ornamental variety.

Hip Characteristics

Hip Shape: spherical
Hip Colour: orange-red
Hip Comment: Rosehip formation is expected to be limited due to the double flowers; occasionally spherical, orange-red hips 7–11 mm in diameter appear.

Resistance and Hardiness

Hardiness (°C): -21–-18 °C
Heat and Drought Tolerance Description: Tolerates heat and moderate drought well.
Disease Resistance: medium
  • powdery mildew – medium
  • black spot – medium
  • rust – medium

Horticultural Recommendations

Recommended Planting Distance: for mass planting 150 cm, for hedging 140 cm, as a specimen 240 cm
Planting Density: in square planting 0,4 plants/m², in hexagonal arrangement 0,5 plants/m²
Partial Shade Tolerance: prefers a sunny position
Maintenance Requirement: Maintenance requirement medium; occasionally requires plant protection.
Primary Uses: pergola, wall, fence, arch support, cut flower, specimen

Comments

Strengths: Long-term presence – Supports local wildlife
Companion Plants: Verbena hastata ‘Pink Spires’ - profusely-flowering pink verbena Gypsophila repens 'Knuddel' - creeping baby's-breath Iris germanica - garden iris
Comment: -
ALASKA® – cream-white climbing rose - Kordes
Silky, pure cream-white base colour, with a whisper of pinkish tint along the edges of the outer petals. - climber, climbing rose - mild, restrained scented rose - subtle, delicately sweet fragrance
Online rose order - climber, climbing rose - Alaska® - cream-white - (5.9-9.2ft (180-280 cm))
Inflorescence: clustered Height: 5.9-9.2ft (180-280 cm) Flower shape: high-centred, pointed-budded (cut-rose type) Winter hardiness: - cream-white - W. Kordes’ Söhne (Germany) climber, climbing rose - Flower size: L (2,75-3,95 in) Flower size: L (2,75-3,95 in) - Height: 5.9-9.2ft (180-280 cm) Height: 5.9-9.2ft (180-280 cm) - Flower fullness: very double-flowered Alaska® - Roses in the garden | darinaROSE® Original - premium silver Tim -Hermann Kordes

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


Which product type is right for you?


Information

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

Let us ask ourselves the question: What do I want to use the rose for?
Flower? - Location? - Cover? - Fragrance? - Height? - Breeder? - Rose hips?

Rose purchase information
Methods of payment - Delivery charges - Delivery - Complaints handling

Care guide

Our product is a rose grown using the unique PharmaRosa® cultivation technology!

2-litre, own-root, potted rose.
With a shoot system appropriate to the season.
With a root system that permeates the growing medium.
Quality in line with the requirements of the E.N.A. (European Nurserystock Association).
In unique packaging designed to prevent damage.
Can be planted at any time during frost-free periods.
True-to-variety rose plant with a unique identifier.

The own-root, potted PharmaRosa® rose is a fully rooted plant that guarantees reliable establishment for you, so it can be planted at any time of the year during frost-free periods.


Crop: several varieties and several stages of development in a short crop section.
Shoot system: intensive growth of fresh basal shoots on a young plant.
Root system: presentation of the strong root system permeating the growing medium, with the pot removed.
Balance: mature plant where the development of the root system and the shoot system is in harmony.

Information about the videos
This video series is not a “seasonal showcase”, but a way of making the essence of own-root PharmaRosa® cultivation tangible: how the plant is structured, what the root system is like, and how the shoot system renews itself. The footage was therefore recorded at different times, showing plants at various stages of development, so mixed leaf cover or differing levels of development may appear in the videos. This is not a “sample” of the consignment delivered, but an illustration of how the technology works. The current condition of the rose You are purchasing, characteristic of the given period (the state in which You can expect to receive it in the parcel), is shown in the upper part of the product page.

pharmarosa.itpharmarosa.dkpharmarosa.sepharmarosa.fipharmarosa.eepharmarosa.compharmarosa.ltpharmarosa.co.ukpharmarosa.atpharmarosa.bgpharmarosa.plpharmarosa.hrpharmarosa.sipharmarosa.grpharmarosa.czpharmarosa.depharmarosa.skpharmarosa.frpharmarosa.bepharmarosa.lupharmarosa.ropharmarosa.espharmarosa.nlpharmarosa.iepharmarosa.lvpharmarosa.rupharmarosa.pt

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.