How to Grow Oklahoma Blaze

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Oklahoma Blaze

Rosa 'Oklahoma Blaze'

shrub

Oklahoma Blaze is a stunning shrub rose bred by the Oklahoma State University rose breeding program, known for its vibrant red-orange flowers and exceptional disease resistance. This landscape rose produces clusters of semi-double blooms throughout the growing season and maintains attractive foliage even in challenging conditions. It's an excellent choice for gardeners seeking low-maintenance, repeat-blooming roses.

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Example Oklahoma Blaze timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Oklahoma Blaze

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Oklahoma Blaze

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Oklahoma Blaze dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily (minimum 6 hours; 8+ hours produces best flowering)
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Water: Water deeply and regularly, about 1-2 inches per week depending on rainfall and temperature. Water at soil level to keep foliage dry and prevent disease. Reduce watering frequency once established.
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Spacing: 36-48 inches
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Days to maturity: 60-90 days for first blooms from transplant; full mature size 2-3 years
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Planting depth: Plant grafted roses with the bud union 1-2 inches below soil surface in cold climates (zones 5-6), or just at soil level in warmer zones

Soil

Type: Well-draining loamy soil with organic matter
pH: 6.0-6.5
Amendments:
compost aged manure peat moss or coconut coir perlite for drainage improvement

Growing Zones

Find your zone →

Thrives in zones 5-9; performs exceptionally well in hot, dry climates typical of Oklahoma and surrounding regions

5a 5b 6a 6b 7a 7b 8a 8b 9a

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Growth Stages

1

Establishment

3-4 weeks

New transplant with developing root system and initial shoot growth

Water thoroughly after planting; apply 2-3 inches of mulch around base; avoid fertilizing for first 4-6 weeks to prevent root burn; protect from harsh wind

2

Vegetative Growth

4-8 weeks

Vigorous shoot and leaf development; plant builds framework

Begin regular watering schedule; apply balanced fertilizer every 4-6 weeks; remove any dead or diseased canes; prune lightly to shape

3

Flowering

6-10 weeks (repeats throughout season)

Clusters of vibrant red-orange semi-double blooms appear on stem tips

Deadhead spent flowers regularly to encourage continuous blooming; maintain consistent watering; fertilize every 4-6 weeks through late summer

4

Repeat Bloom Cycles

Continuous from spring through fall frost

Plant cycles through bloom flushes with brief rest periods between

Continue deadheading; reduce fertilizer applications by late summer (August/September) to encourage hardening-off before winter; monitor for pests and disease

5

Dormancy/Winter Hardiness

3-4 months in colder climates; minimal dormancy in zones 8-9

Foliage may decline in fall; plant enters dormant state in winter

In zones 5-6, apply 4-6 inches of mulch after first hard freeze; stop fertilizing in late summer; prune dead or damaged canes in early spring before new growth emerges

Companion Planting

Plan your garden →

Plant with:

Russian sage (Perovskia) catmint (Nepeta) coreopsis ornamental grasses (Panicum, Miscanthus) salvia lavender sedum daylilies

Avoid planting near:

plants that prefer constant moisture or shade apple trees (potential for shared diseases) clematis (competition for resources in tight spaces)

Common Pests

  • Hand-pick early morning; use pheromone traps away from plants; apply neem oil or insecticidal soap; encourage beneficial nematodes in soil

  • Spray with strong water stream; apply insecticidal soap or neem oil; introduce ladybugs or parasitic wasps

  • Increase humidity with regular misting; apply sulfur dust or miticide; remove heavily infested leaves

  • Improve air circulation; apply sulfur dust or fungicide; remove affected leaves; avoid overhead watering

  • Remove infected leaves promptly; apply fungicide at first signs; mulch to prevent splash-up of spores; maintain dry foliage

Uses

🏠

Cut Flower Arrangements

Household

The vibrant red-orange semi-double blooms are excellent for fresh floral arrangements and last 1-2 weeks in a vase. The long stems and abundant flowers make Oklahoma Blaze ideal for creating dramatic bouquets. [source]

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Pollinator Support

Wildlife

The open semi-double flowers provide nectar and pollen for bees, butterflies, and other beneficial insects. Oklahoma Blaze contributes to a pollinator-friendly landscape throughout the growing season. [source]

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Landscape and Garden Design

Household

As a shrub rose, Oklahoma Blaze serves as a landscape focal point, hedge component, or mass planting element. Its disease resistance and heat tolerance make it ideal for low-maintenance ornamental gardens. [source]

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Dried Flower Craft

Household

Semi-double blooms can be dried for craft projects, potpourri, or decorative arrangements. Air-dry flowers by hanging upside-down in a cool, dark, well-ventilated area. [source]

💊

Rose Petal Wellness Uses

Medicinal

Rose petals can be used to make herbal tea, infusions, or water for skincare applications. Oklahoma Blaze petals, if grown without pesticides, may be used in various traditional wellness preparations. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Oklahoma Blaze is an ornamental rose; cut blooms for fresh arrangements by cutting stems at a 45-degree angle just above a leaf node, preferably in early morning or late evening. Cutting flowers encourages more blooms. For best vase life, use sharp pruners and immediately place stems in water; recut stems every few days and change water regularly.

Fun Facts

  • 🌱 Oklahoma Blaze was developed by the Oklahoma State University Rose Breeding Program specifically for heat and drought tolerance, making it one of the most resilient shrub roses for American gardeners.
  • 🌱 This variety was chosen as the official state rose of Oklahoma, celebrating the state's horticultural heritage and breeding achievements.
  • 🌱 Oklahoma Blaze is virtually thornless to low-thorn compared to many traditional roses, making it safer for landscape maintenance and family gardens with children.

Gardening Terms

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