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Hybrid TeaSwim & Weeks, 1964Red

Oklahoma

An almost black, velvety dark-red Hybrid Tea with a powerful scent.

One of the darkest, almost black reds · strong fragrance

Variety profile

Flowering

Repeat-flowering all summer

Feature

State flower

Official state flower of Oklahoma (2004); one of the darkest reds

Plant size

120–150 × 90 cm
person 170 cm120–150 cm
Habit
Upright, tall
Dimensions
120–150 cm (taller in a warm climate) × ~90 cm
Support
Not needed
Shoots
Sturdy, long — good for cutting
Branching
Moderate

Flower

≈ 12 cm

45–50 petals.

Bud shape
Classic pointed, almost black
Open flower
High-centred, double, pointed bud; ~12 cm
Centre
Dense, tall
Fullness
Double, 45–50 petals
Flower carriage
Borne singly, on long canes
Flower durability
In sun, the dark petals can scorch at the edges

Fragrance

Strong

Strong, 'old rose', sweet — one of the most fragrant dark reds.

Disease resistance

4 out of 5

Very good disease resistance.

Sun

Repeat flowering

The dark colour does not 'burn' — it does better in light shade in the afternoon.

Foliage

Dark green, leathery.

All characteristics in a table
Group
Hybrid Tea
Breeder
Swim & Weeks, USA, 1964
Bud shape
Classic pointed, almost black
Open flower
High-centred, double, pointed bud; ~12 cm
Centre
Dense, tall
Colour
Very dark, velvety, blackish red
Fullness
Double, 45–50 petals
Flower carriage
Borne singly, on long canes
Flowering
Repeat-flowering all summer
Fragrance
Strong, 'old rose', sweet — one of the most fragrant dark reds
Flower durability
In sun, the dark petals can scorch at the edges
Habit
Upright, tall
Branching
Moderate
Shoots
Sturdy, long — good for cutting
Thorns
Moderate number of thorns.
Dimensions
120–150 cm (taller in a warm climate) × ~90 cm
Support
Not needed
Foliage
Dark green, leathery
Resistance
Very good disease resistance
Use
Specimen plant, fragrance garden, cut flowers

Colour scheme

Very dark, velvety, blackish red

Rose neighbours

Perennials to plant nearby

Neighbouring roses

Dark burgundy-raspberry roses in this group form a deep, velvety set with Oklahoma.

Perennial companions

Silver and blue perennials freshen the almost black colour:

catmint (Nepeta)lamb's ear (Stachys)sagelavender

Contrast accents

For play of light beside the black-red rose — silver and sky blue:

lamb's ear (Stachys)catmint (Nepeta)lavender

More about the variety

Use
Specimen plant, fragrance garden, cut flowers

How to grow

Where to plant. As a specimen plant, in a fragrance garden near seating areas; lovely for cutting on long stems.

Climate. USDA 7b–10b — less hardy; in Ukraine it needs good winter protection.

Care. As for a classic Hybrid Tea: feeding, prevention, winter protection. The scent is its main value.

About the name

Name. Named after the US state of Oklahoma; its official flower since 2004.

Breeding. Herbert Swim & O. L. Weeks (USA); 1964. 'Chrysler Imperial' × 'Charles Mallerin'.

Significance. One of the darkest, almost black Hybrid Teas; valued for its deep colour and strong scent.

Frequently asked questions about Oklahoma

How many times a season does Oklahoma flower?

Repeat-flowering all summer.

How big does Oklahoma grow?

120–150 cm tall, about 90 cm wide.

Which diseases affect Oklahoma?

Overall resistance: 4 out of 5. Very resistant (according to HelpMeFind).

How much sun does Oklahoma need?

Sun; repeat flowering; the dark colour does not 'burn' — it does better in light shade in the afternoon.

What does Oklahoma smell like?

Strong, 'old rose', sweet — one of the most fragrant dark reds.

Gardeners' photos and reviews

My climate

Choose a reference temperature to compare with the cultivar’s data. This is not an overwintering forecast or advice on winter protection; consider wind, moisture and the duration of frost.

Regional data are generalised. USDA describes average annual extreme minima, not a forecast; the values in the list are rounded. Check the conditions at your site. More information: Roses in Ukraine's climate.