Bullace Rose
rosa corymbifera
Also known as: ["Bullace Rose","Cluster Rose"]
Overview
A deciduous shrub rose with clusters of small, fragrant pink flowers and small, round, edible fruits (hips) that are often used in jams and teas.
Benefits & Perks
["fragrant flowers","wildlife attractant (bees, butterflies, birds)","disease resistant","cold hardy"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Rosales |
| Family: | Rosaceae |
| Genus: | Rosa |
| Botanical Name: | Rosa corymbifera |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: outdoor garden bed in a sunny, open area
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"–25–35°C"}
- Hardiness: {"zones":"4–8"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining loamy soil with organic matter. Tolerates poor soils but thrives with added compost.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: Annually in late winter or early spring before new growth starts.
- Pruning Intensity: Moderate to heavy, depending on the plant's age and condition.
Care Details
Ideal Sunlight Coverage:
Full sun (6–8 hours of direct sunlight daily). Tolerates partial shade but may produce fewer blooms.
Sunlight Tolerance Tips:
Acclimate plants gradually to full sun if moved from shade. Protect from intense midday sun in hot climates to prevent scorching. Outdoor placement is ideal, but ensure adequate light if grown indoors.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun
Rotate plant for even light exposure; use sheer curtains to filter harsh sun; supplement with grow lights if indoors.
Watering
every 7–10 days during active growth, less frequently in winter
Water thoroughly until runoff, allow soil to dry between waterings, and avoid overhead watering to prevent fungal issues.
Soil
well-drained, loamy soil with added organic matter
pH: Slightly acidic to neutral (pH 6.0–7.0).
Ensure good drainage to prevent root rot; amend with organic matter for fertility; test pH periodically.
Temperature
Hardy in USDA zones 3–8. Prefers cool winters (below freezing) and moderate summers (up to 80°F/27°C).
Protect from frost in early spring; avoid placing near heat sources indoors; ensure winter dormancy for vigor.
Fertilizing
every 4–6 weeks during spring and summer
Avoid over-fertilizing, which can burn roots; water before applying fertilizer to prevent root shock; use organic options like compost for slow release.
Propagation
Methods
Stem cuttings or hardwood cuttings taken in late autumn or winter.
Step-by-Step Propagation Guide
- Select a healthy stem.
- Cut below a node.
- Apply rooting hormone.
- Plant in medium.
- Keep moist and warm.
- Transplant when rooted.
Best Time: Late autumn or winter when the plant is dormant, or early spring before active growth begins.
Environment
Cool, humid environment with indirect light. Maintain temperatures around 60–70°F (15–21°C).
Medium
Well-draining medium like a mix of peat and perlite or coarse sand.
Hormone
Recommended to use rooting hormone to improve success rates.
Timeline
Roots may develop in 4–8 weeks; establishment can take an additional growing season.
Tools Needed
Pruning shears, rooting hormone, propagation tray, misting bottle, plastic wrap.
Quick Tips
Use healthy, non-flowering stems; maintain consistent moisture; provide bottom heat if possible.
Pruning & Repotting
Pruning Guide
Method
Remove dead, damaged, or crossing branches. Cut back old canes to the base to stimulate new growth. Shape the plant as needed.
Pruning Plan
Prune to maintain shape, remove dead or diseased wood, and encourage vigorous flowering. Focus on removing old canes to promote new growth.
Tools
Pruning shears, loppers, saw (for thick canes), disinfectant.
Checklist
Disinfect tools; remove dead/diseased wood; thin overcrowded areas; shape the plant; clean up debris.
Repotting Guide
Best Season
Early spring before new growth begins.
Pot Size
Increase pot size by 2–3 inches in diameter if repotting.
Method
Gently remove the plant; trim any circling roots; place in a new pot with fresh soil; water thoroughly.
Suggestions
Repot only if the plant becomes root-bound or outgrows its container. Outdoor plants typically do not require repotting.
Checklist
Choose appropriate pot; prepare fresh soil mix; handle roots carefully; water after repotting; monitor for stress.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture before watering; water deeply; ensure drainage; avoid wetting foliage.
How to Apply Water Properly
Water at the base of the plant, ensuring moisture reaches the root zone. Water early in the morning to minimize evaporation and allow foliage to dry before nightfall. Ensure excess water drains away to prevent root rot.
Watering Schedule Tips
Water deeply once per week during active growth; reduce frequency to every 2–3 weeks in winter. Adjust based on rainfall and soil moisture retention.
Soil Improvement
Add compost or well-rotted manure to enhance fertility and structure. Incorporate sand or perlite to improve drainage if needed.
Temperature Stress Management
Signs of Temperature Issues
Chlorosis or leaf drop in extreme heat; dieback or delayed bud formation in insufficient cold exposure.
Cold Stress
Low temperatures induce dormancy, which is necessary for healthy growth. However, extreme cold without protection can cause stem dieback or root damage.
Solution: Mulch heavily around the base in winter. Protect from harsh winds. In containers, move to a sheltered location if temperatures drop below -20°F (-29°C).
Hot Stress
Excessive heat can cause wilting, bud drop, and reduced flowering. Prolonged heat may stress the plant, making it vulnerable to pests and diseases.
Solution: Provide afternoon shade in hot climates. Water deeply and mulch to retain soil moisture. Increase air circulation to reduce heat buildup.
Fertilizing Guide
Fertilizing Checklist
Choose balanced fertilizer; apply in spring; follow label dilution; avoid late-season feeding.
Fertilizing Method
Use a balanced, slow-release fertilizer in early spring before new growth. Repeat monthly during the growing season. Reduce or stop fertilizing in late summer to prepare for dormancy.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicRosa corymbifera is not considered toxic to cats. There are no known toxic effects or physiological impacts on felines.
⚡ Toxic If:
Generally non-toxic
Dogs
Non-toxicRosa corymbifera is not considered toxic to dogs. There are no known toxic effects or physiological impacts on canines.
⚡ Toxic If:
Generally non-toxic
Humans
Non-toxicRosa corymbifera, commonly known as the cluster-flowered rose, is generally considered non-toxic to humans. There are no significant toxic effects or physiological impacts associated with this plant.
⚡ Toxic If:
Generally non-toxic
Frequently Asked Questions
Q: Is Rosa corymbifera suitable for beginners?
A: Yes, it is moderately easy to care for and can be a good choice for beginners with some gardening experience.
Q: Does Rosa corymbifera attract wildlife?
A: Yes, it attracts bees, butterflies, and birds due to its fragrant flowers and edible hips.
Q: Are the fruits of Rosa corymbifera edible?
A: Yes, the small, round hips are edible and often used in jams and teas.
Quick Reference
| Family: | Rosaceae |
| Care: | moderate |
| Light: | full sun |
| Water: | every 7–10 days during activ |
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