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Blue Nile
Reference photo

hybrid tea · 1976

Blue Nile

Rosa 'DELblu'

Georges Delbard✦ strong fragrance

3-4 feet

Height

Repeat

Blooming

Full sun

Light

7–9

Zone

Plant & Flower Traits

Rose type

hybrid tea

Bloom size

Large, 4-5 inches

Bloom habit

Usually solitary or small clusters on strong stems

Petal count

25-30

Flowering

repeat blooming

Habit

upright

Color

purple

Fragrance

strong

Foliage

Dark green

Foliage surface

Semi-glossy

Fragrance Notes

Rich, fruity, damask-like fragrance

Color Description

Silvery-lavender or mauve-purple

🌱 Growth & Garden Habits

Light

Full sun

Height

3-4 feet

Spread

2-3 feet

Soil

Rich, well-draining soil with organic matter

Hardiness Zone

Zone 7–9

Disease Resistance

Moderate

🌿 Care Guide

Watering

Regular watering, keep soil moist but well-drained

Fertilizer

Use a balanced rose fertilizer during the growing season

Pruning

Prune in early spring, remove dead wood and thin out older branches

Pests & Diseases

Susceptible to black spot and mildew in humid conditions

🧬 Pedigree

Unspecified

🏆 Awards & Recognition

All-American Rose Selection (AARS) 1977

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