How to Grow Guiding Star
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Guiding Star
Rosa 'Guiding Star'
flowerGuiding Star is a modern shrub rose with deep red blooms that offer excellent disease resistance and winter hardiness. This cultivar produces clusters of medium-sized flowers on a compact, bushy plant and is known for its reliability in cold climates. It makes an excellent landscape rose for borders, hedges, and mass plantings.
When should you plant Guiding Star in your zone?
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Example Guiding Star timeline · Pittsburgh, PA (Zone 6b)
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Plant Guiding Star
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Guiding Star blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Guiding Star dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-8; exceptional cold hardiness for northern gardens
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Get my Guiding Star timeline →Growth Stages
Establishment
4-6 weeksNew canes emerge with fresh green foliage; plant focuses on root development rather than flowering
Water regularly to establish strong roots; avoid heavy fertilizing; remove any flowers to encourage vegetative growth
Vegetative Growth
6-8 weeksVigorous cane development with full green foliage; plant builds framework and density
Begin light pruning to shape plant; apply balanced fertilizer; monitor for pests; mulch well
Flowering
8-12 weeks (spring through fall)Clusters of deep red blooms appear on branch tips; flowers are semi-double to double form
Deadhead spent flowers to encourage continuous blooming; fertilize monthly during bloom season; maintain consistent watering
Repeat Blooming
Repeats every 4-6 weeks until frostAfter deadheading, new flower buds form on new growth; plant cycles through multiple bloom flushes
Continue regular deadheading, watering, and feeding; prune lightly between flushes to maintain shape
Dormancy
12-16 weeks (varies by region)Foliage yellows and drops in fall; plant enters winter rest period and hardens for cold
Stop fertilizing 6 weeks before first frost; reduce watering; apply winter mulch; prune in early spring when forsythia blooms
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick beetles in early morning; use pheromone traps away from roses; apply neem oil or spinosad; encourage native parasitic wasps
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Spray with strong water stream; use insecticidal soap or neem oil; introduce ladybugs or lacewings; avoid over-fertilizing
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Increase humidity and mist foliage; use miticide or neem oil; remove heavily infested leaves; prune for air circulation
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Ensure good air circulation through pruning; apply sulfur or potassium bicarbonate; avoid wetting foliage; remove infected leaves
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Remove infected leaves immediately; water at soil level only; improve air circulation; apply sulfur or copper fungicide; Guiding Star has good resistance
Uses
Cut Flowers & Arrangements
CraftThe deep red blooms are ideal for fresh flower arrangements, bouquets, and garden design focal points. Cut flowers in early morning when stems are fully hydrated. [source]
Edible Rose Petals
CulinaryUntreated rose petals can be candied, added to salads, or used for rose water and culinary infusions. Only use roses grown without pesticides or chemical treatments. [source]
Fragrance & Potpourri
HouseholdDried petals retain fragrance and can be used in potpourri, sachets, and dried floral arrangements for home decoration. [source]
Pollinator Support
WildlifeRose flowers attract bees, butterflies, and other beneficial pollinators to the garden while providing visual interest. Guiding Star's semi-double form allows insect access to pollen. [source]
Rose Hip Remedies
MedicinalAfter flowering, hips develop and contain vitamin C; can be used for herbal tea, syrups, and traditional remedies. Rose hips are particularly rich in antioxidants. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Cut flowers for arrangements when blooms are just opening; cut stems at 45-degree angle above outward-facing leaf node to encourage branching. Deadhead spent flowers by pinching or cutting just above the first 5-leaflet leaf to promote continuous blooming throughout the season. Use sharp, clean pruners to prevent disease transmission.
Fun Facts
- 🌱 Guiding Star is part of the Canadian Roses series, specifically bred by Agriculture & Agri-Food Canada for extreme cold hardiness, making it one of the most winter-tolerant shrub roses available in North America.
- 🌱 The name 'Guiding Star' reflects its role as a reliable, dependable performer in difficult northern climates—a 'guiding light' for cold-climate rose gardeners.
- 🌱 Despite being bred for cold hardiness, Guiding Star performs beautifully in warmer zones and has excellent disease resistance, making it a versatile choice for many garden regions and conditions.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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