Hybrid tea rose

02-033-1
02-033-2

Kronenbourg

Hybrid tea rose

MACbo – Samuel Darragh McGredy IV

Two-coloured flower with a crimson-red inner surface and a yellowish underside. The red and yellow contrast is strong. - hybrid tea rose - medium-strength, clearly noticeable scented rose - pleasant, fruity, tea-rose character

– Striking red and golden-yellow bicolour blooms
– Elegant, high-centred flowers for cutting
– Upright, dense growth with glossy dark foliage
– Excellent resistance to major rose diseases
– Good heat and drought tolerance in summer
Special feature: Historic sport of the legendary ‘Peace’ rose, ideal for low-maintenance, naturalistic borders.
Naturalistic style – Low-impact landscaping
Kronenbourg
pharmaROSA® ORIGINAL 2-litre own-root potted rose
18,80 €
Out of stock. In cultivation. Temporarily unavailable.
5 (9423)
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KRONENBOURG – red-golden-yellow hybrid tea rose - McGredy

The bicoloured Kronenbourg hybrid tea brings a classic, high-centred bloom to your garden with a rich red and golden-yellow contrast that looks instantly at home in Irish front gardens. As a pharmaROSA® ORIGINAL own-root plant, it settles in gradually and is bred for a long, reliable lifespan, giving You a rose that matures rather than wearing out. Its upright, medium-tall growth and dense, glossy foliage create a tidy structure that fits well into borders and smaller beds without complicated pruning. Heat- and rain-tolerant, it copes well with our changeable weather and heavier soils once You ensure sensible drainage, so everyday care stays straightforward. Large, exhibition-style blooms appear repeatedly through the season, making it a rewarding cut flower and a strong focal point by paths or near your front door. The medium, fruity tea scent is clearly noticeable when You pass, adding a touch of evening fragrance for family gardens and cottage-style spaces. Because it is own-root and disease resistant, it keeps its ornamental value over many years with minimal spraying, and recovers better from any winter or wind damage. Expect a natural development: the first year focuses on root growth, the second on building shoots, and by the third season You enjoy the full ornamental effect with plenty of high-centred blooms.



Use cases

Target area Reason
Front garden focal point by path or doorway Upright hybrid tea form and large, two-toned blooms draw the eye and give an instant “proper rose” look without needing a big bed, ideal by gates, paths and entrances for homeowners seeking easy elegance for their front garden
Small group of 3–5 roses in a family border Planted in a loose group, their consistent height and dense foliage create a structured, low-maintenance feature that fills a modest border and flowers reliably year after year for busy families wanting a neat, colourful border with ease
Cutting corner for home bouquets High-centred, long-stemmed flowers and repeat blooming make it excellent for cutting, so even a single plant can supply vases through summer for people who enjoy bringing their own garden roses indoors without fuss
Mixed cottage-style bed with perennials The strong red and yellow bicolour pairs beautifully with cottage perennials like Crocosmia and Gaillardia, adding classic rose form among looser plantings for gardeners who like a romantic, naturalistic look with structure
Low-maintenance family garden rose bed Good disease resistance and straightforward care mean fewer treatments and less worry, suiting those who want reliable flowering and healthy foliage rather than intensive rose maintenance, especially new or time-poor gardeners
Sunny border in wetter or heavier-soil situations Once planted with sensible soil preparation, it copes well with humid Irish conditions and heavier ground, provided excess water can drain away, making it a robust choice where some roses might struggle for those managing challenging sites
Standard (stem) rose for a formal accent The upright habit, repeat flowering and bold bicolour look striking when grafted as a standard, giving a formal accent over low planting for people who enjoy a classic, show-garden feel in an average-sized garden
Large container on a sunny patio or balcony In a minimum 40–50 litre container with quality compost and regular watering, it offers impressive colour and scent close to seating, suiting urban or coastal patios where a single statement rose must stay manageable for busy owners

Decorating ideas

  • COTTAGE GLOW – Combine Kronenbourg with Crocosmia ‘Lucifer’ and Gaillardia for a fiery, cottage-style bed that shines in Irish summer light – ideal for those who love warm, lively borders.
  • FRONT-DOOR WELCOME – Place one rose each side of your entrance path, underplanted with lavender for scent and edging – perfect for homeowners wanting a smart, traditional welcome.
  • EVENING PERFUME – Position near a patio bench with white hydrangeas and soft grasses to catch the fruity tea fragrance on still evenings – suited to small gardens where relaxation space is precious.
  • FORMAL FEATURE – Train as a standard rose in a circular bed edged with low box or thyme, creating a classic focal point – great for gardeners aiming for a tidy, show-garden touch.
  • CONTAINER SHOWPIECE – Grow in a 40–50 litre pot with trailing thyme and silver-leaved herbs to highlight the bicolour blooms on a balcony or terrace – perfect for urban dwellers with limited ground space.

Technical cultivar profile
Parameter Data
Name and registration Hybrid tea rose; registered as MACbo, traded as Kronenbourg Hybrid tea rose MACbo, also exhibited as Flaming Peace; collection and commercial group both hybrid tea.
Origin and breeding Sport of the famous ‘Peace’ hybrid tea; bred by Samuel Darragh McGredy IV at Samuel McGredy & Son, Northern Ireland; introduced via NIRP International after 1965.
Growth and structure Upright, medium-tall bush reaching about 100–140 cm high and 70–110 cm wide, with dense, dark green glossy foliage and moderate prickliness; forms a well-filled, structural shrub in beds.
Flower morphology Large, double, high-centred hybrid tea blooms with 26–39 petals; pointed buds on mostly solitary stems; remontant habit with a particularly good second flush in suitable conditions.
Colour and phenology Striking bicolour: crimson-red inner petals and yellowish reverse; buds lemon-yellow with ruby tips; colours shift towards mauve-pink and ochre-yellow as flowers age, staying richest in cooler weather.
Fragrance and aroma Medium-strength perfume with a pleasant, fruity tea-rose character; scent is clearly noticeable at close range around seating areas, paths or cut for indoor arrangements and bouquets.
Rose hip characteristics Rosehip set is generally sparse due to the full, double blooms; where formed, hips are small, egg-shaped, 10–14 mm across and orange-red, adding modest late-season interest.
Resistance and hardiness Good overall disease resistance, with notable tolerance to powdery mildew, black spot and rust; winter hardy to about −26 to −23 °C (RHS H7), suitable for USDA zone 5b and similar climates.
Horticultural recommendations Best in full sun; low maintenance with basic deadheading; well-suited for borders, standards and cutting. Space 55–100 cm depending on use; 2.5–2.9 plants/m² for mass plantings.

KRONENBOURG offers bold bicolour blooms, strong disease resistance and reliable cutting quality on a long-lived own-root plant that matures with your garden, making it a reassuring choice if You want beauty without complex care.

Detailed product attributes

Product Identification Data

Product Name: KRONENBOURG – red-golden-yellow hybrid tea rose - McGredy
Product Type: pharmaROSA® ORIGINAL - 2-litre own-root potted rose
Cultivar Authenticity: Verified:08.06.2025
Cultivar Merit Rating: premium bronze
Item Number: [200] 02-033 (14.02.2026) pharmarosa.ie

Name and Registration

Cultivar Name Meaning: The name refers to the world-renowned French beer brand Kronenbourg.
Synonym Name: Flaming Peace
Trade Name: Kronenbourg Hybrid tea rose MACbo
Rose Group: Hybrid Tea
Commercial Type: hybrid tea rose
Commercial Group: Hybrid tea rose
Exhibition Category: exhibition tea-hybrid
Collection: Hybrid tea rose

Origin and Breeding

Initial Distributor: NIRP International (France)
Year of Introduction: after 1965
Breeder: Samuel Darragh McGredy IV
Breeding Company / Institution: Samuel McGredy & Son, Nurserymen (Northern Ireland)
Breeding Year: United States, 1965 before
Parentage: 'Peace' hybrid tea sport

Growth and Structural Characteristics

Height: 3.3-4.6ft (100-140 cm)
Spread: 2.3-3.6ft (70-110 cm)
Growth Habit: upright
Foliage: The variety has dense foliage; its leaves have a glossy surface and a dark green hue.
Prickliness: moderately prickly
Self-Cleaning Description: Most spent blooms remain on the plant and require subsequent deadheading.
Self-Cleaning Intensity: self-cleaning weak

Flower Morphology

Petal Count: 26-39
Flower Fullness: double-flowered
Flower Form: high-centred, pointed-budded (cut-rose type)
Flower Size: L (2,75-3,95 in)
Inflorescence Type: solitary
Colour Code: ARS code: RB RHS code: 11B, 53A
Repeat Flowering: Remontant, with a plentiful second flowering.

Colour Data and Phenology

Colour: red golden-yellow
Flower Colour: Two-coloured flower with a crimson-red inner surface and a yellowish underside. The red and yellow contrast is strong.
Closed Bud: Bright lemon-yellow outer petals with a ruby-red tip.
Freshly Opened Flower: The inner petals are deep crimson, and the undersides of the outer petals are a brilliant golden yellow.
Full Bloom: The flower's centre is a rich raspberry red, and the backs of the petals are a light sunflower yellow.
Pre-Fading Flower: The red hue fades to a pale mauve-pink, while the yellow reverse shifts to a warmer ochre-yellow.
Colour Fading Description: As the bloom opens, the inner red tones fade to a mauve-pink while the petal reverse yellow shifts to a warmer ochre-yellow; it fades more quickly in hot conditions and remains more vivid in cool conditions.

Fragrance and Aroma

Fragrance Strength: medium-strength, clearly noticeable scented rose
Fragrance Character: pleasant, fruity, tea-rose character
Pollinator Attraction: Double (26–39-petalled) flowers attract pollinators poorly because the double form typically obscures the stamens and reduces their accessibility to insects.
Pollinator-Friendly Rating: Double (26–39-petalled) flowers partially cover the stamens, so its pollinator-friendliness is limited; it is mainly an ornamental variety.

Rose Hip Characteristics

Rose Hip Shape: egg-shaped
Rose Hip Colour: orange-red
Rose Hip Notes: Rosehip formation is expected to be limited because of the double flowers; occasionally an ovoid, orange-red rosehip 10–14 mm in diameter is produced.

Resistance and Hardiness

Hardiness (°C): -26–-23 °C
Heat and Drought Tolerance Description: Tolerates heat well; requires watering during prolonged dry periods.
Disease Resistance: resistant
  • powdery mildew – resistant
  • black spot – resistant
  • rust – resistant

Horticultural Recommendations

Recommended Spacing: for mass planting 65 cm, for hedging 55 cm, as a specimen 100 cm
Planting Density: square planting 2,5 plants/m², hexagonal arrangement 2,9 plants/m²
Partial Shade Tolerance: Best in full sun
Maintenance Requirements: Maintenance requirement low; good disease resistance, generally requires minimal intervention.
Key Uses: border, cut flowers, standard

Notes

Strengths: Naturalistic style – Low-impact landscaping
Companion Plants: Crocosmia x crocosmiiflora 'Lucifer' - garden montbretia
Euphorbia cyparissias 'Fens Ruby' - cypress spurge
Gaillardia x grandiflora - blanket flower
Note: -
KRONENBOURG – red-golden-yellow hybrid tea rose - McGredy
Two-coloured flower with a crimson-red inner surface and a yellowish underside. The red and yellow contrast is strong. - hybrid tea rose - medium-strength, clearly noticeable scented rose - pleasant, fruity, tea-rose character
Rose Shopping Online - red golden-yellow - hybrid tea rose - Kronenbourg - (3.3-4.6ft (100-140 cm))
Inflorescence: solitary Height: 3.3-4.6ft (100-140 cm) Flower shape: high-centred, pointed-budded (cut-rose type) Winter hardiness: 6b red golden-yellow - NIRP International (France) hybrid tea rose - Flower size: L (2,75-3,95 in) Flower size: L (2,75-3,95 in) - Height: 3.3-4.6ft (100-140 cm) Height: 3.3-4.6ft (100-140 cm) - Flower fullness: double-flowered Kronenbourg - Roses in the garden | pharmaROSA® Original - premium bronze Samuel Darragh McGredy IV

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


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Information

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Care guide

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

2 litre, own-root, potted rose.
With shoots appropriate to the season.
With roots thoroughly interwoven through the growing medium.
Quality in line with the requirements of the E.N.A. (European Nurserystock Association).
In unique packaging that prevents damage.
Can be planted during frost-free periods.
True-to-type rose plant with an individual 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.


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

Information about the videos
The video series is not a “seasonal showcase”, but makes the essence of pharmaROSA® own-root production tangible: how the plant is built, what the root system is like and how the shoots renew themselves. The footage was therefore taken at different times, showing plants at different stages of development, so mixed leaf coverage or differing growth stages may appear in the videos. This is not a “sample” of the batch delivered, but an illustration of how the technology works. The current condition of the rose available to order — typical of the given period and similar to what you can expect to receive in the parcel — is shown at the top of the product page.

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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.