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Plant care

Cinco de Mayo Rose (Cinco de Mayo) care

Rosa 'Cinco de Mayo'

Also called Cinco de Mayo, WEKcitrusp.

RHS H6USDA 5-10Pet-safeIndoor Around 0.9-1.2 m tall and 0.9 m wide (3-4 ft x 3 ft)

Watering rhythm

Direct sun (at least 4-6 hours)

Deeply once or twice a week through the growing season, more in heat

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Light

Direct sun (at least 4-6 hours)

Soil

Fertile, well-drained loam, pH 6.0-7.0

Humidity

40-70%

Temp

-23 to 32°C

Pet safety

Pet-safe

Mature size

Around 0.9-1.2 m tall and 0.9 m wide (3-4 ft x 3 ft)

Care at a glance

Light

Cinco de Mayo Rose needs sun on the leaves, not just bright ambient room light. Full sun for at least 6 hours daily gives the heaviest, most continuous bloom. The distinctive smoky tones intensify in cooler weather and in bright but not scorching light. A south or west-facing windowsill in the northern hemisphere is the default; anywhere else, expect the plant to stretch and pale out within a season.

Watering

Water cinco de mayo rose deeply once or twice a week through the growing season, more in heat. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Water at the base to soak the root zone and keep leaves dry. Establish new plants with consistent moisture; this variety is fairly forgiving once rooted but blooms best with regular water.

Soil and pot

Cinco de Mayo Rose grows best in fertile, well-drained loam, ph 6.0-7.0. Prefers moisture-retentive but free-draining soil amended with compost or aged manure. Improve heavy or compacted ground with organic matter; avoid waterlogged spots. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Cinco de Mayo Rose sits happiest at around 40-70% humidity and -23 to 32°C (-10 to 90°F). An outdoor garden rose unaffected by ambient humidity, though good spacing and airflow keep the already strong disease resistance working in humid climates. If you keep the room above year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed cinco de mayo rose sparingly. Apply a balanced rose fertiliser in early spring and again after each major flush; this repeat-bloomer responds well to light, regular feeding. Stop feeding 6-8 weeks before first frost so growth hardens off. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on cinco de mayo rose in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Spider mites — Fine stippling and webbing on hot, dry, dusty plants; hose down foliage undersides and keep plants well watered to discourage them.
  • Aphids — Colonies on new buds and shoots in spring; wash off with water or use insecticidal soap before they cause distortion.
  • Spent-bloom clutter — Cluster flowers fade to a muddy look if left on; deadhead spent trusses to keep the plant tidy and encourage rapid rebloom.
  • Powdery mildew — Although resistant, it can show white mildew if roots dry out in humid air; water consistently and keep the centre open.

Propagation

Commercially propagated by budding or grafting onto rootstock; can also be grown from semi-hardwood or hardwood cuttings. As a patented (WEKcitrusp) variety, asexual propagation for sale is prohibited during the patent term. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Cinco de Mayo Rose is pet-safe. ASPCA-listed as non-toxic to cats, dogs, and horses (Rosa species, family Rosaceae, no toxic principle). The thorns are a physical hazard only, so plant where pets won't brush the canes. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Cinco de Mayo Rose care — frequently asked questions

What is the common name for Rosa 'Cinco de Mayo'?

Rosa 'Cinco de Mayo' is most commonly called Cinco de Mayo Rose, but it is also known as Cinco de Mayo, WEKcitrusp. The names refer to the same species, so care instructions for Cinco de Mayo Rose apply identically to anything sold as Cinco de Mayo.

How much light does cinco de mayo rose need?

Cinco de Mayo Rose grows best in direct sun (at least 4-6 hours). Full sun for at least 6 hours daily gives the heaviest, most continuous bloom. The distinctive smoky tones intensify in cooler weather and in bright but not scorching light.

How often should I water cinco de mayo rose?

Water cinco de mayo rose deeply once or twice a week through the growing season, more in heat. Water at the base to soak the root zone and keep leaves dry. Establish new plants with consistent moisture; this variety is fairly forgiving once rooted but blooms best with regular water. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is cinco de mayo rose toxic to cats and dogs?

Cinco de Mayo Rose is pet-safe. ASPCA-listed as non-toxic to cats, dogs, and horses (Rosa species, family Rosaceae, no toxic principle). The thorns are a physical hazard only, so plant where pets won't brush the canes.

What USDA hardiness zone does cinco de mayo rose grow in?

Cinco de Mayo Rose is rated for USDA zone 5-10 and RHS hardiness H6. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Cinco de Mayo Rose deep-dive guides

Every aspect of cinco de mayo rose care, each with its own calibrated guide:

Featured in these plant shortlists

Cinco de Mayo Rose qualifies for 11 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

  • Best pet-safe houseplants — Houseplants the ASPCA lists as non-toxic to cats and dogs — every one verified against the ASPCA toxic and non-toxic plant list.
  • Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
  • Best pet-safe flowering plants — Flowering houseplants the ASPCA lists as non-toxic to cats and dogs — colour and blooms in a pet home, without the worry.
  • Best pet-safe plants for bright light — Non-toxic to cats and dogs and happy in a bright, sunny spot — safe plants for your best-lit windowsill.
  • Best pet-safe large indoor plants — Big, floor-standing houseplants the ASPCA lists as non-toxic to cats and dogs — a statement plant that is safe around pets.
  • Best houseplants for full sun — Houseplants that want direct sun — the species for a hot south or west-facing windowsill where shade-lovers scorch.
  • Best houseplants for a cool room — Houseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
  • Best fast-growing houseplants — Houseplants documented as fast or vigorous growers — quick to fill a pot, cover a pole or trail down a shelf.
  • Best fragrant houseplants — Indoor plants with scented flowers or aromatic foliage — greenery you can smell, selected from our care library.
  • Best cat-safe plants — Houseplants the ASPCA lists as non-toxic to cats (and dogs) — safe greenery for a home with a curious cat.
  • Best dog-safe plants — Houseplants the ASPCA lists as non-toxic to dogs (and cats) — safe greenery for a home with a curious dog.
  • Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Cinco de Mayo Rose is also commonly called Cinco de Mayo or WEKcitrusp.