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

– Bicolour blooms in dramatic red-gold tones.
– Elegant, high-centred flowers ideal for cutting.
– Resistant to mildew, black spot and rust.
– Good heat and drought tolerance once established.
– Dense, glossy dark green foliage for strong impact.
– Special feature: Medium, fruity tea fragrance adds classic charm in the garden and vase.

Exclusive finished product

pharmaROSA® NEONATAL rooted rose cutting

28,34 £

Due to courier service regulations – and the introduction of customs clearance – delivery to Ireland is temporarily suspended.

5 (9152)

Kronenbourg Hybrid tea rose MACbo – pharmaROSA® NEONATAL propagation material

This Hybrid tea selection offers a distinctive colour blend of crimson-red and yellow, combined with high-centred flowers suitable for premium container production and cut-flower oriented ranges. As own-root material in the pharmaROSA® NEONATAL line, tray-rooted cuttings provide a stable base for building uniform 5–7 L bush-trained crops with 3–5 strong framework canes and predictable, low-intervention maintenance. Its good disease resistance, H7 winter hardiness and reliable repeat flowering support nursery and wholesaler programmes aiming at exclusive finished product offers for retail and reseller channels, while ensuring dependable performance even in cooler northern UK conditions with strong winter and wind exposure. Over a natural development arc where roots consolidate in year one, structural shoots establish in year two and full ornamental value expresses by year three, own-root longevity and regeneration help maintain consistent stock quality and reduce replacement needs.

Usage options

Target area	Reasoning
Premium 5–7 L bush for retail-focused ranges	The combination of strong Hybrid Tea flower quality and form with bush-trained release form and 3–5 framework canes suits a premium 5–7 L route where visual impact at point of sale is critical. Low maintenance requirements and good disease resistance keep crop interventions limited during the grow-on period, supporting predictable scheduling for exclusive finished product positioning into retail and reseller channels serving discerning rose buyers in the UK. Retail / reseller
Colour-focused thematic and show-garden lines	The two-coloured crimson-red and yellow blooms with high-centred, exhibition-type morphology provide a clear visual signature for thematic ranges and collection beds. Using own-root NEONATAL material as the propagation base for 5–7 L containers allows nurseries to assemble coherent colour-story collections with stable identity and long-term planting value, matching exclusive finished product concepts aimed at show-garden orientated retailers and specialist resellers. Retail / reseller
Durable outdoor border production in colder regions	With H7 hardiness, USDA 5b and Swedish Zone 4 ratings, this cultivar is structurally well suited to outdoor border production cycles in cooler or more exposed UK sites. Own-root propagation material enables long-lived, renewable stands with an upright habit, while low-intervention disease resistance stabilises quality through variable seasons, supporting premium container programmes that must also perform reliably in northern and more wind-exposed garden markets. Retail / reseller
Low-intervention nursery stock for integrator networks	Good resistance to powdery mildew, black spot and rust significantly reduces the need for reactive treatments, which benefits integrator and multi-site nursery systems targeting uniform container crops. Starting from tray-rooted own-root cuttings streamlines intake, benching and potting, and supports consistent 5–7 L premium container production with minimal variability, aligning well with exclusive finished product branding for retail chains and high-end reseller partners. Retail / reseller
Cut-flower capable garden rose lines	High-centred, pointed-budded flowers of L size, developed from a ‘Peace’ sport, give stems that are visually aligned with cut-rose expectations for garden-use cutting. Positioning it as a premium container bush with strong framework canes enables growers to market multi-purpose plants suited both to borders and home cutting, adding perceived value to exclusive ranges intended for design-led garden centres and specialist rose retailers. Retail / reseller
Fragrance-emphasis premium bush assortments	The clearly noticeable, medium-strength fragrance with a pleasant fruity, tea-rose character allows inclusion in scented rose assortments where aroma is a defined selling point. Producing own-root 5–7 L bushes with bush-trained form ensures the structural base to deliver repeated scented flushes, supporting retailers and resellers looking to curate exclusive, sensorially distinctive Hybrid Tea selections. Retail / reseller
Heat-tolerant lines for sunnier garden centres	Good heat tolerance, provided irrigation is managed during prolonged dry periods, makes this cultivar adaptable to sunnier, south-facing sales areas and end-use sites, while own-root structure supports recovery after stress. Integrating it into the premium container product path allows nurseries to offer reliable, exclusive Hybrid Tea options for retail and reseller outlets serving warmer southern and south-eastern UK catchments with increasing summer heat exposure. Retail / reseller
Collection and brand-heritage assortments	As a ‘Peace’ sport bred by Samuel Darragh McGredy IV and introduced via NIRP International, this cultivar carries clear breeding heritage interest for collection ranges. Using NEONATAL own-root material for 5–7 L premium containers supports long-term cultivar maintenance and identity stability, aligning with exclusive finished product lines that highlight historical or breeder-focused narratives in specialist retail and reseller environments. Retail / reseller

Finished-product ideas

5–7 L premium exhibition Hybrid Tea bush – Own-root, bush-trained plants with 3–5 strong canes and high-centred flowers emphasising colour contrast and form in a premium 5–7 L container route – retail / reseller premium rose tables.
Themed “Red & Gold Heritage” series – Collection SKU combining this two-coloured ‘Peace’ sport with other heritage types, produced from NEONATAL own-root cuttings into 5–7 L pots for stable, long-lived displays – specialist garden centres and rose boutiques.
Scented cut-and-border feature rose – Upright Hybrid Tea bushes in 5–7 L containers promoted for both border planting and home cutting, leveraging flower quality and medium-strength fragrance – design-led retailers targeting keen gardeners.
Cold-hardy premium border line – H7-hardy own-root stock grown in 5–7 L containers for resilient border plantings where long-term structure and disease resistance reduce after-sales issues – regional nurseries and wholesalers supplying cooler UK areas.
Low-intervention exclusive container programme – Uniform own-root NEONATAL intake scaled into premium 5–7 L bush production with low maintenance needs and strong disease resistance – integrator networks and branded retail programmes.

Technical cultivar profile

Parameter	Data
Name and registration	Hybrid Tea rose MACbo, traded as Kronenbourg Hybrid tea rose MACbo with ARS exhibition name Flaming Peace; collection classification Hybrid tea rose, commercial exhibition tea-hybrid type.
Origin and breeding	Sport of ‘Peace’ Hybrid Tea bred by Samuel Darragh McGredy IV at Samuel McGredy & Son, Nurserymen, Northern Ireland; registered 1965 and introduced after 1965 via NIRP International, France.
Growth and structural characteristics	Upright Hybrid Tea shrub 100–140 cm high and 70–110 cm spread, with dense, glossy dark green foliage and moderate prickles; spent blooms persist and typically require deadheading due to weak self-cleaning.
Flower morphology	Large, double (26–39 petals) flowers of high-centred, pointed-budded cut-rose type; mostly solitary on stems, remontant with plentiful second flowering providing repeated ornamental and cutting opportunities.
Colour data and phenology	Two-coloured blooms: crimson-red inner petals with yellow reverse; colour shifts towards mauve-pink and warmer ochre-yellow as flowers age, with quicker fading in heat and more intense tones in cooler conditions.
Fragrance and aroma	Medium-strength, clearly noticeable fragrance combining fruity notes with classic tea-rose character; primarily ornamental, with scent level suitable for fragrance-focused premium garden and container assortments.
Hip characteristics	Rosehip set is generally low because of the double flower form; where present, hips are small, ovoid, orange-red, around 10–14 mm diameter and of limited significance for ornamental or production planning.
Resistance and winter hardiness	Rated resistant to powdery mildew, black spot and rust; hardy to approximately −26 to −23 °C (RHS H7, Swedish Zone 4, USDA 5b), supporting reliable outdoor cultivation and overwintering across most UK regions.
Horticultural recommendations	Suited to borders and cut-flower use with low maintenance demands; own-root NEONATAL material is best grown on as bush-trained plants in 5–7 L premium containers, with occasional deadheading to maintain display.

Kronenbourg Hybrid tea rose MACbo offers distinctive bicolour flower quality, reliable hardiness and disease resistance on a regenerative own-root base that supports predictable, long-lived stands; please contact us to discuss scheduling and capacity for your programmes.

Detailed product attributes

Product Identification Data

Product Name: KRONENBOURG – red-golden-yellow hybrid tea rose - McGredy

Product Type: pharmaROSA® NEONATAL - rooted rose cutting

Product Quality: -

Cultivar Authenticity: Verified:02.08.2025

Cultivar Quality Rating: premium bronze

Item Number: [200] 20-039 (14.02.2026) pharmarosaneonatal.co.uk

Name and Registration

Meaning of Cultivar Name: The name refers to the world-renowned French beer brand Kronenbourg.

Cultivar Synonym: Flaming Peace

Registered Cultivar Name: MACbo

Original Trade Name: Flaming Peace

Former Name: -

Current Trade Name: Kronenbourg Hybrid tea rose MACbo

American Rose Society Approved Exhibition Name: Flaming Peace

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)

Introduction Year: after 1965

Registration Year: 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

Awards and Honours

Global and Lifetime Awards: -

Horticultural Ratings and Recommendations: -

Competition and Show Awards: -

Collectors' Recommendations: -

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 Shape: 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 Description: 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.

Newly 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.

Before Fading: 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.

Colour Retention Level: moderate

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.

Soap and Cosmetic Use: -

Hip Characteristics

Maximum Hip Diameter: 10-14 mm

Hip Shape: egg-shaped

Hip Colour: orange-red

Hip Comment: 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

RHS Hardiness Rating: H7

Swedish Hardiness Zone: Zon 4

USDA Hardiness Zone: 5b

Heat and Drought Tolerance Description: Tolerates heat well; requires watering during prolonged dry periods.

Heat and Drought Tolerance Level: good

Disease Resistance: resistant

powdery mildew – resistant
black spot – resistant
rust – resistant

Horticultural Recommendations

Recommended product path: Premium container

Recommended target pot: 5–7 L

Release form: Bush-trained, with 3–5 strong framework canes

Recommended use: Maintenance requirement low; good disease resistance, generally requires minimal intervention.

Primary Uses: border, cut flowers, standard

Comments

Positioning: Exclusive finished product

Target customer/channel: Retail / reseller

Main value proposition: Flower quality, form

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

Online rose purchase - red golden-yellow - medium-strength, clearly noticeable scented rose - Kronenbourg - hybrid tea rose - (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® Neonatal - 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

In what condition do we dispatch the roses from our online shop?

Ask yourself the question: What final product do I want to create from it?

Wholesale of cuttings

PharmaRosa® NEONATAL is the cost‑effective starting point for rose product production.

As a uniform, own‑rooted propagation material, it provides a stable basis for further growing-on and can be integrated flexibly into different finished product production technologies.
Rooted in trays (rooted), 3–6‑month‑old, own‑rooted rose cutting.
Uniform developmental stage, with a root system that has thoroughly penetrated the plug.
For professional growing‑on.
Tray packaging: 10 pcs/tray.
Quality and varietal identity: production supported by a dedicated identification and traceability logic.
Can be transplanted during frost‑free periods, designed for finished product production.

PharmaRosa® NEONATAL provides a controlled, uniform starting stock for planned growing‑on that can be integrated into your own technology – especially where scheduling and varietal identity are paramount.

PharmaRosa® NEONATAL own-rooted rose propagation material in a plug, with a root system penetrating the plug (semi-finished product / semi-finished rose). PharmaRosa® NEONATAL rose propagation material size: 3–6‑month‑old, own-rooted cutting with a uniform developmental stage. PharmaRosa® NEONATAL tray stock: own-rooted rose propagation material in trays, uniform developmental stage (10 pcs/tray).

Captions (from left to right): Semi-finished product (NEONATAL own-rooted rose propagation material in a plug with a fully developed root system) • Size demonstration (3–6‑month‑old, uniform cutting) • Root system detail (plug penetrated by the root system) • Tray stock (10 pcs/tray, uniform developmental stage)