Plant care
Philodendron Lynamii (Lynamii) care
Philodendron lynamii
Also called Lynamii, Lynam's Philodendron.
Watering rhythm
6-9days
When the top 3-4 cm of mix is dry, roughly every 6-9 days
Light
Bright indirect light (just back from a sunny window)
Soil
Chunky, well-aerated aroid mix
Humidity
60-80%
Temp
18-29°C
Pet safety
Toxic to pets
Mature size
Climbs to about 1.5-2.5 m indoors on a pole
Care at a glance
Light
Philodendron Lynamii 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, indirect light brings out the strongest pink-bronze new growth; an east or filtered south exposure suits it. Direct sun bleaches and scorches the leaves, while dim light mutes the colour and produces small, widely spaced foliage. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.
Watering
Water philodendron lynamii when the top 3-4 cm of mix is dry, roughly every 6-9 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 deeply, allowing excess to drain, then let the surface dry before the next round. It likes consistent moisture but rots quickly if the roots stay saturated. Cut back noticeably during the lower-light winter months.
Soil and pot
Philodendron Lynamii grows best in chunky, well-aerated aroid mix. Use orchid bark, perlite, coco coir and a handful of worm castings for an open, free-draining medium. Standard potting soil compacts and holds too much water for this hemi-epiphyte's oxygen-hungry roots. 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
Philodendron Lynamii sits happiest at around 60-80% humidity and 18-29°C (65-84°F). High humidity supports the large leaves and vivid new growth; below 50% the colour flushes are weaker and edges may brown. Use a humidifier or grouping. Many collectors acclimate young plants gradually from a humid cabinet to room air. 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 philodendron lynamii sparingly. Apply a balanced liquid fertiliser at half strength every 3-4 weeks through the growing season to fuel the large leaves and frequent flushes. Stop feeding in winter. Periodically flush the soil to prevent fertiliser-salt buildup 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 philodendron lynamii in the Growli community. Each is annotated with the most common cause so you know where to start.
- Weak or absent pink coloration — New growth stays plain green in low light. Provide brighter indirect light to encourage the characteristic pink-to-bronze flushes.
- Yellowing leaves with mushy stems — Overwatering or a compacted mix. Repot into an airy aroid blend, confirm drainage, and let the top dry before watering again.
- Browning leaf margins — Typically low humidity or salt buildup. Raise humidity, flush the soil, and water with rain or filtered water if tap water is hard.
- Thrips damaging new growth — Thrips love tender pink leaves and leave silvery scarring. Isolate, wipe down foliage, and treat with neem or insecticidal soap repeatedly.
Propagation
Take stem cuttings bearing a node and ideally an aerial root, then root in sphagnum moss, water, or a perlite mix inside a humid, warm enclosure. Pot on once roots are several centimetres long and well-branched. 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
Philodendron Lynamii is toxic to pets. The ASPCA classifies Philodendron as toxic to cats and dogs. It contains insoluble calcium oxalate crystals throughout its tissues; biting or chewing causes oral and tongue irritation, profuse drooling, pawing at the mouth, vomiting and trouble swallowing. Site it well away from pets and small 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.
Philodendron Lynamii care — frequently asked questions
What is the common name for Philodendron lynamii?
Philodendron lynamii is most commonly called Philodendron Lynamii, but it is also known as Lynamii, Lynam's Philodendron. The names refer to the same species, so care instructions for Philodendron Lynamii apply identically to anything sold as Lynamii.
How much light does philodendron lynamii need?
Philodendron Lynamii grows best in bright indirect light (just back from a sunny window). Bright, indirect light brings out the strongest pink-bronze new growth; an east or filtered south exposure suits it. Direct sun bleaches and scorches the leaves, while dim light mutes the colour and produces small, widely spaced foliage.
How often should I water philodendron lynamii?
Water philodendron lynamii when the top 3-4 cm of mix is dry, roughly every 6-9 days. Water deeply, allowing excess to drain, then let the surface dry before the next round. It likes consistent moisture but rots quickly if the roots stay saturated. Cut back noticeably during the lower-light winter months. 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 philodendron lynamii toxic to cats and dogs?
Philodendron Lynamii is toxic to pets. The ASPCA classifies Philodendron as toxic to cats and dogs. It contains insoluble calcium oxalate crystals throughout its tissues; biting or chewing causes oral and tongue irritation, profuse drooling, pawing at the mouth, vomiting and trouble swallowing. Site it well away from pets and small children.
What USDA hardiness zone does philodendron lynamii grow in?
Philodendron Lynamii is rated for USDA zone 11-12 (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.
Philodendron Lynamii deep-dive guides
Every aspect of philodendron lynamii care, each with its own calibrated guide:
- Philodendron Lynamii watering schedule
- Philodendron Lynamii light requirements
- Best soil mix for philodendron lynamii
- Philodendron Lynamii fertilizing guide
- When to repot philodendron lynamii
- How to propagate philodendron lynamii
- Philodendron Lynamii growth rate & size
- Philodendron Lynamii cold hardiness
- Philodendron Lynamii temperature & humidity
- Is philodendron lynamii toxic to cats & dogs?
- Is philodendron lynamii toxic to cats?
- Is philodendron lynamii toxic to dogs?
Featured in these plant shortlists
Philodendron Lynamii qualifies for 5 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 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
Philodendron Lynamii is also commonly called Lynamii or Lynam's Philodendron.