Shrub · Rosaceae
Old Garden Rose
Rosa
Hardy, deeply fragrant, and easygoing on their own roots, old garden roses reward sound culture year after year.
Full sun
Every 5–7 days
USDA 4–9
3–8 ft · 0.9–2.4 m
Overview
Old garden roses are the heritage classes introduced before 1867, the gallicas, damasks, albas, and related groups cultivated long before the modern hybrids. As a group they are hardier and more forgiving than contemporary florist roses, and many carry enough disease resistance to stay off the spray schedule that newer types demand. Their fragrance is as much the point as the flower.
The classes divide into two functional groups defined by where they set flower buds, and that distinction governs the whole pruning approach. The once-blooming roses, gallica, damask, alba, centifolia, and moss, bear their single early-summer flush on old wood carried over from the previous season. The repeat-bloomers, including bourbon, Portland, China, tea, and noisette, flower on current-season growth and rebloom through the season, which is why the timing and severity of the cut differ between the two.
These are durable shrubs that demand less than their reputation implies. Given adequate sun, a decent free-draining soil, and air movement through the canopy, most establish and grow on their own roots for decades. The principal caution is the thorns.
Care
The short version: full sun with strong morning light, loose well-drained soil rich in organic matter, a deep weekly soak delivered at the base in the morning, and pruning matched to whether the class blooms once or repeats.
Light
Old garden roses perform best in full sun, and morning exposure is preferable because it evaporates the overnight dew early and shortens the leaf-wetness period that fungi require. They tolerate light partial shade, but bloom declines and disease pressure rises when the canes remain damp. Provide 6 to 8 hours of direct sun.
Water
Water deeply in the morning so the canopy dries quickly, which denies black spot and powdery mildew the sustained leaf wetness they need to infect. A thorough soak every 5 to 7 days suits most plants, with a shorter interval in heat or on sandy ground. Avoid evening overhead watering, which leaves foliage wet through the night.
Soil
Grow them in loose, well-drained soil amended with ample organic matter, which supplies both aeration and moisture-holding structure. A pH of 6.0 and 7.0, slightly acidic to neutral, keeps nutrients available. Heavy, waterlogged ground is the one condition roses will not tolerate.
Temperature
These are cold-hardy shrubs rated from roughly -20°F to 100°F (-29°C to 38°C) depending on the class. Many old roses withstand zone 4 winters, part of the reason the group has persisted for so long. An established plant supplied with steady moisture rarely suffers under heat.
Humidity
Ambient outdoor humidity is not a factor to manage, so no target range applies. Air movement matters far more than atmospheric moisture, because still air in a crowded canopy is precisely what allows black spot and mildew to establish. Space and thin so air passes freely through the canes.
Feeding
Apply a balanced rose or general-purpose fertilizer beginning when growth begins in spring and again after each flush of bloom. Cease about six weeks before your first frost so the plant can harden new tissue before cold. Excess nitrogen drives soft growth that is more susceptible to mildew.
Pruning
Pruning follows directly from where the class flowers. Once-blooming roses bear on old wood, so prune them lightly just after flowering to shape the plant and remove dead wood without sacrificing next year's buds. Repeat-bloomers flower on new growth and accept a harder cut in late winter or early spring before growth resumes.
Repotting
As long-lived shrubs, old garden roses rarely need repotting once established in the ground. In a container, pot up a size when you observe roots circling the drainage holes, water passing straight through with little uptake, or stunted growth despite adequate watering. Most perform best planted permanently in the ground.
Size & spacing
These shrubs range from about 3 to 8 feet (90 to 245 cm) tall with a spread of roughly 3 to 6 feet (90 to 185 cm) depending on the class. Allow each plant enough room to reach its mature spread so air circulates freely and disease pressure stays low.
When to plant
Old garden roses are planted dormant rather than raised from seed. Set out bare-root or container plants in early spring once the soil is workable, or in fall in regions with mild winters. The once-blooming classes produce a single early-summer flush, while the repeat-bloomers continue flowering into fall.
Northern hemisphere
Southern hemisphere
Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.
- Sow: Not typically grown from seed by home gardeners; propagate vegetatively instead
- Plant: Plant dormant bare-root or container plants in early spring after the soil can be worked, or in fall in mild-winter regions
- Harvest: Late spring to summer; once-blooming classes flower in a single early-summer flush, repeat-blooming classes rebloom into fall
Hardiness
USDA hardiness zones: 4–9
Temperature: down to -34°C
Troubleshooting
Most rose disorders present on the foliage first, and prolonged leaf wetness in a crowded canopy underlies nearly all of them. Detect the early signs and a prompt sanitation usually contains the problem. Match the symptom below, then intervene before the disorder advances up the plant.
Feathery dark lesions and yellowing across the upper leaves
These lesions are black spot, caused by the fungus Diplocarpon rosae, which needs a film of water on the leaf for more than about 7 hours to germinate and infect. Because the spores move by splash, the disease establishes on the lowest foliage and advances upward, defoliating as it climbs. Remove the infected leaves, clear the fallen litter that harbors overwintering spores, and confine watering to the base in the morning so the canopy dries before the wetness threshold is reached.
Fix:
- Remove and dispose of infected leaves and prune out infected canes
- Rake up and discard fallen leaves to reduce spore sources
- Water at the base in the morning so foliage dries quickly
- Apply a labeled fungicide (such as neem oil, potassium bicarbonate, or sulfur) when conditions favor severe infection
Whitish powder-like growth over young shoots and buds
A white to gray coating on young shoots and buds indicates powdery mildew, a fungus that favors shade and high humidity within a temperature band of 68°F to 86°F (20°C to 30°C). Because it colonizes soft, actively expanding tissue, the new growth distorts and the affected leaves yellow, then brown. Excise the worst shoots, thin the canopy to lower humidity and let air move, and withhold excess nitrogen, since the lush growth it drives is exactly what the pathogen exploits.
Fix:
- Prune out and dispose of heavily infected shoots and leaves
- Improve air circulation by thinning and proper spacing
- Wash spores off foliage with a morning water spray
- Apply a protectant or eradicant fungicide at the earliest sign on susceptible plants
Colonies of small sap-feeding insects and honeydew on tender growth
The dense green, pink, or black colonies on the succulent tips are aphids, and the sticky residue below them is honeydew excreted as they feed. They concentrate on soft new growth and buds, but the damage is largely cosmetic and rarely lasting. Dislodge them with a firm morning jet of water, and preserve the lady beetles and lacewings that suppress them by avoiding the broad-spectrum insecticides that would kill those predators alongside the pest.
Fix:
- Hose aphids off plants with a strong stream of water in the morning
- Tolerate light infestations and conserve natural enemies such as lady beetles and lacewings
- Avoid broad-spectrum insecticides that kill beneficial predators
Toxicity
For pet owners the record is reassuring: true roses are non-toxic to cats, dogs, horses, and every other animal kept about the home or pasture, and the petals and hips are edible for people. No toxic principle is present. The one genuine hazard is mechanical, the thorns, which can lacerate a mouth or paw, so management centers entirely on the prickles.
Safe for
People · Cats · Dogs · Horses · Rabbits · Livestock · Birds
Cats None
The genus Rosa contains no toxic principle that affects cats. The only concern is mechanical: the thorns can lacerate an exploring mouth or paw.
Dogs None
A dog can ingest rose tissue without any systemic toxicity. The genuine risk is physical, since swallowing a mass of thorny stem can abrade the gums and, in sufficient volume, obstruct the gut.
Horses Safe
Horses graze roses with no toxic consequence, and many browse the canes voluntarily. The prickles catching the soft lip tissue are the sole thing to monitor.
Rabbits Safe
Rabbits can consume rose foliage and petals with no toxic effect. The prickles remain the only hazard of note.
Livestock Safe
Cattle, goats, and sheep tolerate roses without incident, and goats in particular favor the foliage. The plant holds nothing that poisons them.
Birds Safe
Roses pose no toxic threat to birds, and many consume the ripe hips into autumn. Those hips form a legitimate part of their forage.
People Safe
Roses are non-toxic to people, and the hips and petals are edible. A puncture from the thorns is the only injury to guard against.
The plant is non-toxic, but thorns (prickles) can cause mechanical injury to mouths, paws, and skin, and ingesting large amounts of stem material could risk gastrointestinal obstruction.
Varieties
Old garden roses resolve into a handful of classes, each with a characteristic habit, fragrance, and pruning requirement. These are the ones worth knowing by name.
Gallica (e.g. Rosa gallica 'Officinalis', the Apothecary's Rose)
A compact, upright shrub reaching roughly 4 feet, armed with fine prickles and clothed in deep green foliage, that carries intensely fragrant blooms in a single early flush.
Damask (e.g. Rosa × damascena 'Kazanlik')
A vigorous, arching shrub of 5 to 8 feet whose potent fragrance is distilled commercially into attar of roses, and whose hardiness extends into zone 4.
Alba
A tall, nearly thornless class with smooth arching canes and distinctive blue-green foliage that withstands severe winters and flowers once per season.
Bourbon
A repeat-flowering class that produces bloom on both old and new wood, which is why it accepts a harder pre-bloom cut than the once-blooming classes.
Centifolia (Provence or Cabbage Rose) and Moss
A class of full, many-petaled, fragrant flowers, with the moss forms distinguished by a resinous, scented glandular growth over their buds and stems.
How to propagate
Old garden roses propagate readily, and most establish well on their own roots without recourse to grafting. Select the method according to your patience and the growth habit of the plant.
Stem cuttingsModerate
Take softwood or hardwood cuttings from late spring through summer or fall · Several weeks to root; one growing season to establish
Most old garden roses root readily from cuttings and perform well on their own roots, so grafting is unnecessary. Take either softwood or hardwood material at any point from late spring through fall, matching the wood type to the season. Roots form over several weeks, and the plant requires a full growing season to establish.
LayeringEasy
Spring to summer while canes are flexible · One growing season for layered canes to root before separating
Layering is the simplest method for the arching old classes, since it roots the cane while it remains attached to and supplied by the parent. While the canes are still pliable in spring or summer, pin a low one to the soil and let it root in place. Allow a full growing season before severing it from the parent plant.
GraftingDemanding
Dormant season or late summer budding · One season to unite and establish
Grafting is the most exacting method, performed in the dormant season or by budding in late summer. It unites a selected cultivar with a rootstock and needs a season for the graft union to knit and establish. Most old garden roses make it optional, since they grow satisfactorily on their own roots.
Myths
Rosa species contain compounds that are toxic to cats and dogs.
The ASPCA classifies true roses as non-toxic to both dogs and cats, listing no toxic principle whatsoever. The only real hazard is mechanical, from the thorns, which can lacerate a mouth or paw, and a quantity of woody stem could theoretically impact the gastrointestinal tract. No chemical poisoning is involved.
Heirloom rose classes share the disease susceptibility and high maintenance of modern hybrids.
Many old garden roses resist the pests and diseases that afflict modern hybrids. They generally require less water and fertilizer, perform well on their own roots without grafting, and tolerate cold considerably better than the newer types.