Plant care
Monstera Deliciosa Ronronensis (Ronronensis monstera) care
Monstera deliciosa var. sierrana
Also called Ronronensis monstera, Sierra monstera.
Watering rhythm
7-10days
When the top 5 cm of soil is dry, roughly every 7-10 days
Light
Bright indirect light (just back from a sunny window)
Soil
Chunky, fast-draining aroid mix
Humidity
60-80%
Temp
18-29°C
Pet safety
Toxic to pets
Mature size
Indoors 1.5-2.5 m tall on support
Care at a glance
Light
Monstera Deliciosa Ronronensis is what florists mean by "bright spot, no direct sun" — close enough to a south or east window to feel the brightness, with a sheer curtain or a few feet of distance keeping the sun off the leaves. Bright, filtered light close to an east or south window drives faster fenestration. Direct midday sun scorches; deep shade leaves stay small and entire. Early-morning or late-evening sun is tolerated. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.
Watering
Water monstera deliciosa ronronensis when the top 5 cm of soil is dry, roughly every 7-10 days. 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 thoroughly until it drains, then let the top few inches dry before the next soak. It tolerates brief dryness but resents soggy soil, the main cause of root rot. Reduce frequency in winter.
Soil and pot
Monstera Deliciosa Ronronensis grows best in chunky, fast-draining aroid mix. Blend orchid bark, perlite or pumice, coco coir and a little worm castings for aeration and moisture retention. Mimics epiphytic forest-floor conditions and keeps roots oxygenated. Aim for slightly acidic, free-draining medium. 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
Monstera Deliciosa Ronronensis sits happiest at around 60-80% humidity and 18-29°C (65-85°F). Thrives in high humidity, which speeds leaf maturation and prevents crispy edges. Tolerates 50% indoors but fenestration and growth slow in dry air. A humidifier or pebble tray helps in winter. If you keep the room above 18 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 monstera deliciosa ronronensis sparingly. Feed monthly through spring and summer with a balanced liquid fertiliser diluted to half strength; pause in autumn and winter. Flush the pot occasionally to prevent salt build-up that browns leaf tips. 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 monstera deliciosa ronronensis in the Growli community. Each is annotated with the most common cause so you know where to start.
- Leaves stay entire (no splits) — Immature plants and those in low light or without a climbing support produce solid, unfenestrated leaves. Increase light and add a moss pole to trigger mature, split foliage.
- Yellowing leaves — Usually overwatering and soggy roots; check that the top few inches dry between waterings and that the pot drains freely. Old lower leaves yellowing one at a time is normal.
- Brown, crispy leaf edges — Low humidity or fertiliser-salt build-up. Raise humidity above 50% and flush the soil periodically to leach excess salts.
- Root rot — Caused by dense, water-retentive soil or chronic overwatering. Repot into a chunky aroid mix, trim mushy roots and let the medium dry adequately between drinks.
Propagation
Propagate by stem cuttings with at least one node and ideally an aerial root; root in water, sphagnum moss or straight into airy aroid mix. Air-layering on a node before cutting raises success on this slower-growing variety. 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
Monstera Deliciosa Ronronensis is toxic to pets. ASPCA lists Monstera deliciosa as toxic to cats and dogs. The toxic principle is insoluble calcium oxalate crystals; chewing causes oral irritation, intense burning of mouth and lips, drooling, vomiting and difficulty swallowing. Keep away from pets and children. 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.
Monstera Deliciosa Ronronensis care — frequently asked questions
What is the common name for Monstera deliciosa var. sierrana?
Monstera deliciosa var. sierrana is most commonly called Monstera Deliciosa Ronronensis, but it is also known as Ronronensis monstera, Sierra monstera. The names refer to the same species, so care instructions for Monstera Deliciosa Ronronensis apply identically to anything sold as Ronronensis monstera.
How much light does monstera deliciosa ronronensis need?
Monstera Deliciosa Ronronensis grows best in bright indirect light (just back from a sunny window). Bright, filtered light close to an east or south window drives faster fenestration. Direct midday sun scorches; deep shade leaves stay small and entire. Early-morning or late-evening sun is tolerated.
How often should I water monstera deliciosa ronronensis?
Water monstera deliciosa ronronensis when the top 5 cm of soil is dry, roughly every 7-10 days. Water thoroughly until it drains, then let the top few inches dry before the next soak. It tolerates brief dryness but resents soggy soil, the main cause of root rot. Reduce frequency in winter. 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 monstera deliciosa ronronensis toxic to cats and dogs?
Monstera Deliciosa Ronronensis is toxic to pets. ASPCA lists Monstera deliciosa as toxic to cats and dogs. The toxic principle is insoluble calcium oxalate crystals; chewing causes oral irritation, intense burning of mouth and lips, drooling, vomiting and difficulty swallowing. Keep away from pets and children.
What USDA hardiness zone does monstera deliciosa ronronensis grow in?
Monstera Deliciosa Ronronensis is rated for USDA zone 10-12 (indoor in most US homes) and RHS hardiness H1b. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.
Monstera Deliciosa Ronronensis deep-dive guides
Every aspect of monstera deliciosa ronronensis care, each with its own calibrated guide:
- Monstera Deliciosa Ronronensis watering schedule
- Monstera Deliciosa Ronronensis light requirements
- Best soil mix for monstera deliciosa ronronensis
- Monstera Deliciosa Ronronensis fertilizing guide
- When to repot monstera deliciosa ronronensis
- How to propagate monstera deliciosa ronronensis
- Monstera Deliciosa Ronronensis growth rate & size
- Monstera Deliciosa Ronronensis cold hardiness
- Monstera Deliciosa Ronronensis temperature & humidity
- Is monstera deliciosa ronronensis toxic to cats & dogs?
- Is monstera deliciosa ronronensis toxic to cats?
- Is monstera deliciosa ronronensis toxic to dogs?
Featured in these plant shortlists
Monstera Deliciosa Ronronensis qualifies for 6 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:
- Best plants for a north-facing window — Houseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
- Best trailing & climbing houseplants — Vining and trailing houseplants for shelves, hanging pots, and moss poles — selected by growth habit.
- Best humidity-loving houseplants — Houseplants that thrive in a bathroom, kitchen, or by a humidifier — selected by documented humidity preference.
- Houseplants toxic to cats & dogs — The common houseplants the ASPCA lists as toxic to cats and dogs — the ones to keep out of reach, each with its symptoms and a safe alternative.
- Best houseplants to propagate in water — Houseplants that root from a cutting in a glass of water — the easiest, cheapest way to turn one plant into many.
- Best fast-growing houseplants — Houseplants documented as fast or vigorous growers — quick to fill a pot, cover a pole or trail down a shelf.
- Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more
Related guides
Monstera Deliciosa Ronronensis is also commonly called Ronronensis monstera or Sierra monstera.