Hybrid Tea rose

90-098-1
90-098-2

Prof. Kownas

Hybrid tea rose

- – Stanisław Żyła

Uniform bright orange shade with a subtle golden tinge. - hybrid tea rose - mild, subtly scented rose - pleasant, floral character

– Bright orange blooms with gentle golden sheen.
– Reliable remontant flowering with rich second flush.
– Upright, compact habit suits borders and specimens.
– Dark, glossy foliage gives elegant contrast.
– Very hardy to Irish winters, H7, USDA 5a.
Gné speisialta: Dath na mbláthanna ag athrú go haibí ó oráiste geal go bánghrianmhar, ór-pastail le linn na bliana.
Everyday elegance – Continuous garden development
Prof. Kownas
antoniaROSE® ORIGINAL rós i bpota 2 lítear ar a fhréamhacha féin
17,60 €
pcs
Direct from the grower
In stock for immediate dispatch
Delivery: 8–11 working days
4.5 (6566)
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PROF. KOWNAS – orange hybrid tea rose – Żyła

Step outside for a few quiet minutes and let PROF. KOWNAS wrap your garden in soft, glowing colour: richly orange buds opening to elegant, double blooms that slowly wash into pastel-gold and salmon tones. Its compact, upright habit and dense, dark foliage make it a natural choice for small Irish front gardens where space is precious but you still want a real “girly” cottage feel. Own-root planting means a reassuringly long-lived investment, with good regeneration if winter or weather cause damage, and consistently stable flowering over the years. In our damp summers and frequent showers it copes reliably with fungal pressure thanks to very good black-spot resistance, needing only occasional care. Think of it as a patient companion: in the first year it concentrates on roots, in the second on stronger shoots, and by the third it settles into full ornamental value for your family garden retreat.



Usage options

Target area Reasoning
Feature rose near the front door The compact, upright shape and medium height make PROF. KOWNAS easy to place beside a path or porch without overwhelming a small space, while the glowing orange flowers give a cheerful welcome on grey, rainy days for the busy urban gardener.
Irish cottage-style mixed border Its repeat-flowering habit ensures colourful flushes across the short Irish summer, pairing beautifully with soft pastels and cottage perennials to create a “girly”, romantic feel in relaxed family borders beloved by nature-oriented homeowners.
Cut-flower and exhibition bed Originally bred as a hybrid tea for cutting, its solitary, well-formed blooms and long, straight stems lend themselves to vases or occasional show work, offering satisfying results for hobby florists and exhibition-minded enthusiasts.
Long-term own-root planting As an own-root rose, PROF. KOWNAS ages steadily and recovers well from weather damage, without the graft issues of budded roses, suiting gardeners who want a reliable, long-lived shrub with minimal replacement worries for patient beginners.
Small family garden focal point Planted as a specimen at around 50 cm spacing, its dense, glossy foliage and glowing orange flowers read clearly from the patio or kitchen window, giving a strong focal point with little effort for homeowners seeking easy visual impact.
Clay soil beds with better drainage In typical Irish heavy clay it responds well to improved drainage and a mulch layer, rewarding that simple preparation with healthy growth and repeat blooms despite our wet winters, ideal for cautious beginners willing to make one good planting effort.
Part-shade side garden or terrace Suitable for partial shade, it performs reliably along east- or west-facing walls where full sun is limited, keeping colour and foliage quality while leaving sunniest spots free for vegetables, herbs or children’s play for practical family gardeners.
Large patio container planting (40–50 litres) In a generously sized pot of at least 40–50 litres, with good drainage and regular watering, PROF. KOWNAS gives an easy-care splash of refined orange near seating areas, perfect for townhouses and balcony owners seeking low-fuss seasonal colour.

Styling ideas

  • COTTAGE SOFTNESS – Mix with sweet alyssum and pale pink perennials for a light, romantic cottage look – ideal for front gardens where a gentle, feminine feel is desired.
  • ORANGE ACCENT – Use three plants in a triangle as a glowing focal point amid green shrubs – suited to homeowners who want a simple but striking feature.
  • PATHWAY WELCOME – Line a short path with evenly spaced bushes, underplanting with creeping phlox for a neat yet flowery entrance – good for those who like order without formality.
  • SCENTED CORNER – Combine its mild floral fragrance with spearmint and other aromatic herbs around a small bench – appealing to fragrance lovers who enjoy quiet evening sits.
  • CONTAINER CHIC – Plant a single rose in a 50-litre terracotta pot with trailing alyssum at the edge – perfect for city terraces needing easy, moveable colour.

Technical cultivar profile
Characteristic Data
Name and registration Hybrid tea rose, trade name PROF. KOWNAS – orange hybrid tea rose – Żyła; named in honour of Polish botanist Professor Stefan Kownas; registered cultivar name not recorded.
Origin and breeding Bred by Stanisław Żyła from (Crepe de Chine × Marina) × Rinacor; introduced in 1996, with registration in 1994; breeder’s institution and initial distributor are not documented.
Growth and structural characteristics Upright, bushy hybrid tea rose 70–95 cm high and 40–55 cm wide; dense, dark green, glossy foliage; moderately thorny shoots; weak self-cleaning, so spent blooms benefit from regular deadheading.
Flower morphology Medium-sized, 4–7 cm, double, 26–39-petalled flowers; solitary, cup-shaped blooms that open fairly flat; remontant habit with a generous second flush, producing well-formed, cutting-quality stems.
Colour data and phenology Uniform bright orange with a subtle golden tinge; ARS orange, RHS 24A outer and 23B inner; colour holds well, then fades gently to salmon-pink and pastel-gold tones toward the end of each bloom.
Fragrance and aroma Mild, pleasantly floral fragrance with a classic rose character; not overpowering near seating areas or open windows, making it suitable for small patios and compact urban gardens.
Hip characteristics Rose hips form only occasionally because of the double flowers; when present they are spherical, 12–17 mm in diameter, and orange-red, adding discreet autumn interest without heavy seeding.
Resistance and winter hardiness Hardy to about −29 to −26 °C (RHS H7, USDA 5a, Swedish zone 4); moderate overall disease resistance with good black spot resistance and moderate susceptibility to powdery mildew and rust.
Horticultural recommendations Use as border, specimen or cut-flower rose; plant 30 cm apart for mass beds, 25 cm for hedging, 50 cm for specimens; suitable for partial shade; medium maintenance with occasional plant-protection treatments.

PROF. KOWNAS offers glowing orange blooms, a compact, easy-to-place shape and dependable repeat flowering on a robust own-root plant; a thoughtful choice if you want lasting colour with modest effort.

Detailed product attributes

Product Identification Data

Product Name: PROF. KOWNAS – orange hybrid tea rose - Żyła
Product Type: antoniaROSE® ORIGINAL - rós i bpota 2 lítear ar a fhréamhacha féin
Cultivar Authenticity: Cigireáilte:17.07.2025
Cultivar Merit Rating: premium bronze
Item Number: [1448] 90-098 (14.02.2026) antoniarose.ie

Name and Registration

Cultivar Name Meaning: The name was given in honour of Professor Stefan Kownas, a Polish botanist.
Trade Name: Prof. Kownas Hybrid tea rose Żyła
Rose Group: Hybrid Tea
Commercial Type: hybrid tea rose
Commercial Group: Rós taehibride
Exhibition Category: cut flower; exhibition hybrid tea
Collection: Hybrid tea rose

Origin and Breeding

Breeder: Stanisław Żyła
Breeding Company / Institution: unknown / no data
Parentage: (Crepe de Chine × Marina) × Rinacor

Growth and Structural Characteristics

Height: 70-95 cm
Spread: 40-55 cm
Growth Habit: upright
Foliage: The variety has dense foliage. The leaves have a glossy surface and a dark green hue.
Prickliness: moderately thorny
Self-Cleaning Description: Spent blooms generally remain on the plant and require deadheading.
Self-Cleaning Intensity: Self-cleaning: weak

Flower Morphology

Petal Count: 26-39
Flower Fullness: double flowered
Flower Form: cup-shaped, flat-opening
Flower Size: M (4 -7 cm)
Inflorescence Type: solitary
Colour Code: ARS code: OB RHS code: 24A (outer), 23B (inner)
Repeat Flowering: Remontant, with a generous second flush of blooms.

Colour Data and Phenology

Colour: orange
Flower Colour: Uniform bright orange shade with a subtle golden tinge.
Closed Bud: Deep, rich orange surface with a slight golden sheen at the tip.
Freshly Opened Flower: The outer petals are bright orange, and the inner surfaces are softer with a golden-orange tone.
Full Bloom: The petals are a uniform orange with a golden sheen in the centre and a subtle salmon blush at the edges.
Pre-Fading Flower: The orange slowly fades to a salmon-rose, pastel-gold shade.
Colour Fading Description: The vivid orange gradually fades to a salmon-pink, pastel-gold hue as the flower reaches the end of its bloom.

Fragrance and Aroma

Fragrance Strength: mild, subtly scented rose
Fragrance Character: pleasant, floral character
Pollinator Attraction: Its strongly double (fully filled) bloom form, which often conceals or restricts access to the stamens, makes it poorly attractive to pollinating insects.
Pollinator-Friendly Rating: Double-flowered variety, pollinator-friendly: limited, attracts few pollinators

Rose Hip Characteristics

Rose Hip Shape: spherical
Rose Hip Colour: orange-red
Rose Hip Notes: Hip formation is likely to be minimal due to the double flowers; occasionally a spherical, orange-red hip 12–17 mm in diameter forms.

Resistance and Hardiness

Hardiness (°C): -29–-26 °C
Heat and Drought Tolerance Description: Has average water needs in warm conditions; requires irrigation during prolonged drought.
Disease Resistance: moderate
  • powdery mildew – moderate
  • black spot – resistant
  • rust – moderate

Horticultural Recommendations

Recommended Spacing: for mass planting 30 cm, for hedging 25 cm, as a specimen plant 50 cm
Planting Density: square planting 10 plants/m², hexagonal arrangement 12 plants/m²
Partial Shade Tolerance: suitable for partial shade
Maintenance Requirements: Maintenance requirement medium; occasional plant-protection treatments required.
Key Uses: border, cut flower, specimen plant

Notes

Strengths: Everyday elegance – Continuous garden development
Companion Plants: Phlox subulata - creeping phlox Mentha spicata - spearmint Alyssum maritimum - sweet alyssum
Note: -
PROF. KOWNAS – orange hybrid tea rose - Żyła
Uniform bright orange shade with a subtle golden tinge. - hybrid tea rose - mild, subtly scented rose - pleasant, floral character
Siopa gréasáin rósanna. - hybrid tea rose - Prof. Kownas - orange - (70-95 cm)
Bláthaireacht: solitary airde: 70-95 cm Cruth na bláthanna: cup-shaped, flat-opening Friotaíocht gheimhridh: 4b orange - - hybrid tea rose - Méid an bhlátha: M (4 -7 cm) Méid an bhlátha: M (4 -7 cm) - airde: 70-95 cm airde: 70-95 cm - Líon bláthanna: double flowered Prof. Kownas - Rósanna sa ghairdín | antoniaROSE® Original - premium bronze Stanisław Żyła

Léirímid cuma sheachtrach ár rósanna atá le ceannach ar líne ónár siopa gréasáin.


Which product type is right for you?


Information

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

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

Rose purchase information
Payment methods – Delivery costs – Delivery – Complaints handling

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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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®
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PharmaRosa Ltd.
Company registration number: 01-09-717479
VAT number: 13075314-2-43
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