Shrub · Rosaceae
Rambling Rose
Rosa
Give it sun and a sturdy frame, prune when the moment is right, and even a nervous beginner will watch a rambler drape a fence in early summer flowers.
Full sun
Every 5–7 days
730–1095 days
USDA 4–9
Overview
If a rambling rose sounds like more than you can handle, take heart, because this is one of the most forgiving roses you can plant. It sends up long, whippy canes that clamber across fences, up arches, and into the limbs of old trees, then clothes them in masses of small flowers for one happy burst in early summer. Where a hybrid tea gives a few big blooms, a rambler hands you hundreds of little ones at once, and asks very little in return.
All that generosity comes with one thing to plan for: a rambler grows fast and grows big. It can add as much as 20 feet (6 m) in a single season, and a settled plant spreads 15 to 30 feet (4.6 to 9 m) wide. Do not let that worry you. Just give it a strong frame from day one, since a thin trellis or a small shrub would soon sag under all that weight.
Roses get their fussy reputation from two things, pruning and disease, and both are easy to stay on top of once you know the trick. Cut a rambler at the wrong time and you simply miss a year of flowers, nothing worse. Leave it crowded in damp shade and black spot or mildew may settle in. Get the timing right and keep the air moving, though, and you will find a rambler is about as tough and giving as a plant gets.
Care
The short version: give it full sun, loose soil rich in compost, and a deep drink at the base every 5 to 7 days while it settles in. Prune once the flowers have faded, never in late winter, and gently tie the long canes to a strong support as they climb.
Light
A rambler blooms best in full sun, ideally six or more hours a day, though it will put up with partial sun or a little light shade. Give it less light and you get fewer flowers, and shade also opens the door to the mildew that bothers crowded roses.
Water
Water deeply at the base in the morning so the leaves dry off fast, about every 5 to 7 days while your plant is settling in. Keep water off the foliage in the evening, since wet leaves overnight are just what black spot and mildew want. Once a rambler has its roots down, it copes with dry spells with ease.
Soil
Set your rambler in loose, well-drained loam with plenty of compost mixed through. A pH of 6.0 to 6.8, just on the acid side of neutral, keeps roses happiest, and free drainage protects the roots.
Temperature
Ramblers are hardy souls, comfortable anywhere from -20°F to 95°F (-29°C to 35°C) across their range. Cold winters and hot summers rarely bother them, so you can relax about the weather.
Humidity
Outdoor humidity on its own is nothing to measure or manage, so there is no target number to chase. What matters is airflow, because still, damp air trapped around crowded canes is exactly the conditions black spot and powdery mildew love.
Feeding
Feed your rambler a balanced granular rose or general fertilizer from spring through midsummer. Ease off well before fall, since a late meal pushes out soft new growth that will not toughen up before the cold arrives.
Pruning
Timing is the whole game here: prune right after the summer flowers fade, never in late winter. Ramblers bloom on last year's wood, so a winter cut takes the flowers with it. Once the blooms are spent, lift out a few of the oldest canes at the base, tie the strong young canes to their support, and trim back the side shoots; to freshen an aging plant, take out about a third of the oldest canes each year.
Repotting
Ramblers are big landscape plants and are happiest in the ground, not in a pot. They are hardly ever grown in containers, so repotting simply is not part of the picture; pick a permanent home with room to roam right from the start.
Size & spacing
Expect a large plant, 15 to 30 feet (4.6 to 9 m) tall and 8 to 20 feet (2.4 to 6 m) wide once mature. Plant it well clear of paths and smaller neighbors, and hand it a strong, roomy support it cannot outgrow.
When to plant
Plant your rambler out in early spring once frost has passed, or set dormant bare-root stock in late winter to early spring. It flowers in one lovely flush from late spring into early summer on the canes it grew last year, and it stays hardy right across USDA zones 4 to 9, so most gardens can grow it happily.
Northern hemisphere
Southern hemisphere
Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.
- Sow: not typical; ramblers are propagated vegetatively, not from seed
- Plant: early spring after frost or in fall; plant dormant bare-root stock in late winter to early spring
- Harvest: single flush in late spring to early summer, with large sprays of small flowers on previous year's wood
Hardiness
USDA hardiness zones: 4–9
Temperature: down to -34°C
Troubleshooting
Most of what troubles a rambler is fungal and turns up on the leaves first, with insects a distant second, so try not to fret. Keep the leaves dry and the air moving and you head off the worst of it. Find your plant's symptom below and act early, while it is still easy to fix.
Dark spots edged in yellow, with leaves dropping early
Those dark spots with ragged edges and a yellow ring around them are black spot, the disease that bothers roses more than any other. It takes hold when splashed water leaves the foliage damp for hours, and the marked leaves soon yellow and fall. Pick off the spotted ones, rake up what has dropped, water low and early in the day, and thin the plant so a breeze can pass through it.
Fix:
- Remove and dispose of infected leaves and fallen debris
- Water at the base in the morning so foliage dries quickly
- Improve air circulation by pruning and proper spacing
- Apply a preventive fungicide such as sulfur, neem oil, or potassium bicarbonate when conditions favor infection
A white dusty coating on leaves and fresh shoots
A pale, powdery film across the leaves and shoot tips is powdery mildew, which creeps in with shade, crowding, and old leaf litter left lying about. Fresh growth often curls as it opens. Move the plant into more sun if you can, water at the base instead of overhead, clear away the fallen leaves that hold the spores, and reach for a labeled fungicide only if it gets away from you.
Fix:
- Grow roses in a sunny, open location
- Avoid overhead and nighttime watering
- Clean up dead leaves that harbor spores
- Apply a labeled fungicide if needed
Soft green or pink insects crowding the new tips
Those little pear-shaped insects bunched on the buds and soft tips are rose aphids, out in force from June through October. A small colony does almost no harm, so there is no need to panic or spray straight away. Rinse them off with a brisk jet of water in the morning, let the lady beetles help, and keep insecticidal soap in reserve for a real outbreak.
Fix:
- Hose aphids off with a strong stream of water in the morning
- Tolerate low to moderate numbers, which cause little damage
- Encourage natural predators such as lady beetles
- Use insecticidal soap for heavy infestations
Toxicity
Here is some reassurance for pet owners: true roses are completely non-toxic to cats, dogs, horses, and the rest of the household menagerie. The ASPCA lists them as safe, so a nibbled leaf or petal is nothing to worry over. The only real hazard is a physical one, not a poison: the canes carry sharp thorns that scratch skin and catch fur, so slip on thick gloves and long sleeves before you work among them.
Safe for
People · Cats · Dogs · Horses · Rabbits · Livestock · Birds
Cats None
Roses sit on the ASPCA's non-toxic list, so a curious cat that nibbles a leaf will come to no harm. The one thing to keep an eye on is a scratched nose or paw from the thorns.
Dogs None
A dog can mouth the leaves or petals with no risk of poisoning. It is the thorns that deserve your caution, since a lively dog barging through the canes can collect scrapes on its face and feet.
Horses None
The ASPCA counts roses as safe for horses, and a mouthful of foliage does no damage. Just remember those firm thorns can nick a soft muzzle.
Rabbits Safe
Rabbits can graze the leaves and shoots with no toxic effect at all. It is their lips and tongue you will want to shield from the prickly canes.
Livestock Safe
Cattle, goats, and sheep take rose foliage in their stride, and goats in particular tuck into it. Nothing in the plant poisons them, though the thorns can scratch a grazing animal.
Birds Safe
Roses hold no chemical danger for birds, and plenty of wild birds shelter deep in the thorny growth. There is simply nothing toxic here to keep them clear of.
People Safe
Roses are not poisonous to people. The single genuine hazard is a physical one: the sharp thorns scratch and puncture skin, so pull on thick gloves and long sleeves before you prune or train the long canes.
The main hazard is mechanical: rambler canes bear sharp thorns (prickles) that can scratch or puncture skin. Wear thick gloves and long sleeves when pruning or training the very long, vigorous canes.
Varieties
Ramblers run from wild species roses to treasured old garden names. These three give you a feel for the range, from a big coarse spreader to an almost thornless climber to a rose native to North America.
Rosa multiflora 'Grevillei' (Seven Sisters)
A real powerhouse of a rambler whose coarse, arching canes race away and reach about 15 feet (4.6 m), so hand it plenty of space and a solid frame to lean on.
Rosa 'Veilchenblau'
An almost thornless rambler that carries soft violet-blue flowers which pale as they age, climbing 10 to 15 feet (3 to 4.6 m).
Rosa setigera (Prairie Rose)
A species rose native to North America that will climb to about 15 feet (4.6 m) once it has something to lean on.
Companions
Ramblers do best with aromatic, sun-loving neighbors that share their need for good drainage and help screen the bare bases of leggy canes.
Plant near
Lavender: Aromatic companion that shares full-sun, well-drained conditions and may help deter some pests.
Catmint (Nepeta): Low-growing companion that covers the bare bases of leggy rambler canes and shares sun and drainage needs.
Garlic and other alliums: Often interplanted with roses and reputed to discourage aphids.
How to propagate
Ramblers increase with barely any effort on your part, which is exactly why they spread so freely. Cuttings and layering are the two easy routes for a home gardener, while grafting is best left to the nursery trade.
Stem cuttingsEasy
Summer to early fall using semi-hardwood, or hardwood cuttings in late fall · Several weeks to a few months to root; a year or more to a flowering plant
Ramblers root from cuttings without much trouble at all. Take semi-hardwood pieces from summer into early fall, or move to hardwood cuttings later in fall, and keep them evenly damp in a shady corner. Roots form over several weeks to a few months, though you should count on a year or more before the young plant flowers.
LayeringEasy
During the growing season · One growing season to root before separating
Layering could not suit a rambler better, since those long, bendy canes reach right down to the soil on their own. Peg one against the ground through the growing season and it roots where it lies, ready to part from the parent after a full season of rooting.
GraftingDemanding
Summer (budding) for commercial propagation · One or more seasons
Grafting belongs to the trade rather than the home garden. Nurseries bud a named variety onto a chosen rootstock in summer, and the join needs one or more seasons to fill out into a plant worth selling.
Myths
Rambling roses need a hard late-winter prune, just like hybrid teas.
A rambler flowers once in early summer on the wood it made the year before, so a hard cut in late winter strips away the very canes that were about to bloom. Wait until the flowers have faded, then prune, and next summer's display stays safe.
Ramblers and climbers are one and the same and flower all season long.
A rambler is far more vigorous than most climbers, with longer, more supple canes. Nearly all of them bloom just once a year, and once that early summer flush has passed, they are done flowering until the following year.
Roses will poison a dog or a cat.
The ASPCA lists true roses (Rosa) as non-toxic to cats, dogs, and horses, so a chewed leaf or petal will not poison your pet. The thorns are the only real danger, and they scratch rather than poison.