Plant care
Homalomena 'Maggy' (Shield Plant) (Shield Plant) care
Homalomena rubescens 'Maggy'
Also called Shield Plant, Red Shield Plant, Queen of Hearts, Homalomena Maggy.
Watering rhythm
Bright indirect light (just back from a sunny window)
When the top 2-3 cm (top inch) of soil is dry
Light
Bright indirect light (just back from a sunny window)
Soil
Rich, well-draining, slightly acidic aroid mix
Humidity
50% or higher
Temp
15-32°C
Pet safety
Toxic to pets
Mature size
Typically 60-90 cm (2-3 ft) tall and wide indoors
Care at a glance
Light
Bright but filtered. Homalomena 'Maggy' (Shield Plant) burns within days in unfiltered south-facing summer sun, and stops growing within months in deep shade. Bright, indirect light brings out the best leaf colour, but it adapts well to medium and even low light. Keep it out of direct sun, which scorches the foliage. An east-facing window, or set back from a brighter south or west window, suits it well. If you only have a south window, set the plant back 1.5 m or hang a sheer curtain — both knock the intensity down into the right range.
Watering
Watering homalomena 'maggy' (shield plant): when the top 2-3 cm (top inch) of soil is dry. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Keep the soil consistently moist but never waterlogged; this plant dislikes both drying out and sitting in soggy compost. Water when the top inch feels dry, let excess drain freely, and ease off in winter. Use room-temperature water to avoid cold shock.
Soil and pot
Homalomena 'Maggy' (Shield Plant) grows best in rich, well-draining, slightly acidic aroid mix. Use a loose, moisture-retentive but free-draining mix with an acidic pH below 6.0 — for example peat-free houseplant compost amended with orchid bark, perlite and a little coco coir. Good drainage is essential to prevent root rot. 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
Homalomena 'Maggy' (Shield Plant) sits happiest at around 50% or higher humidity and 15-32°C (59-90°F). As a tropical understorey plant it prefers elevated humidity of 50 percent or more. It tolerates average room humidity but browning leaf edges signal the air is too dry; raise humidity with a pebble tray, grouping with other plants, or a humidifier. If you keep the room above 15 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 homalomena 'maggy' (shield plant) sparingly. Feed with a weak, balanced liquid houseplant fertiliser at roughly half strength once or twice a month during the spring and summer growing season. Stop feeding in autumn and winter when growth naturally slows. 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 homalomena 'maggy' (shield plant) in the Growli community. Each is annotated with the most common cause so you know where to start.
- Yellowing leaves — Most often caused by improper soil moisture, especially overwatering. Check that the mix is well-draining and let the top inch dry before watering again. An occasional yellowing older leaf at the base is natural shedding.
- Root rot — The most likely serious problem, as 'Maggy' is sensitive to wet feet. Prevent it with a free-draining mix and a pot with drainage holes; never let the plant stand in water.
- Brown, crispy leaf edges — A sign the air is too dry. Raise humidity above 50 percent with a pebble tray, humidifier or grouping plants, and keep it away from radiators and draughts.
- Scorched or faded leaves — Direct sun bleaches and burns the foliage. Move the plant to bright, indirect light if leaves look pale, washed out or develop dry brown patches.
- Drooping or cold damage — Exposure to temperatures below about 13°C (55°F) or cold draughts causes wilting and yellowing. Keep it warm and away from cold windows, doors and air-conditioning vents.
- Sap skin irritation — The calcium-oxalate-laden sap can irritate skin on contact. Wear gloves and wash hands when pruning, dividing or repotting.
Propagation
Propagate by division, ideally at repotting time in spring. Lift the plant and carefully separate the clump or lateral rhizome segments, making sure each section has its own roots. Dusting cut surfaces with powdered charcoal can reduce rot; pot divisions into fresh, well-draining mix and keep them warm, humid and in shade until established. 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
Homalomena 'Maggy' (Shield Plant) is toxic to pets. Homalomena is an aroid (family Araceae) and all parts contain insoluble calcium oxalate crystals, which cause mouth and throat irritation, intense drooling, difficulty swallowing, vomiting and diarrhoea if chewed, and the sap can irritate skin. Homalomena is NOT individually named in the ASPCA toxic/non-toxic plant database and no Homalomena species is listed as non-toxic; however, NC State Extension documents it as toxic to dogs and cats, so treat it as toxic and keep it away from pets and children. If ingestion is suspected, contact your vet or the ASPCA Animal Poison Control Center (888-426-4435). 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.
Homalomena 'Maggy' (Shield Plant) care — frequently asked questions
What is the common name for Homalomena rubescens 'Maggy'?
Homalomena rubescens 'Maggy' is most commonly called Homalomena 'Maggy' (Shield Plant), but it is also known as Shield Plant, Red Shield Plant, Queen of Hearts, Homalomena Maggy. The names refer to the same species, so care instructions for Homalomena 'Maggy' (Shield Plant) apply identically to anything sold as Shield Plant.
How much light does homalomena 'maggy' (shield plant) need?
Homalomena 'Maggy' (Shield Plant) grows best in bright indirect light (just back from a sunny window). Bright, indirect light brings out the best leaf colour, but it adapts well to medium and even low light. Keep it out of direct sun, which scorches the foliage. An east-facing window, or set back from a brighter south or west window, suits it well.
How often should I water homalomena 'maggy' (shield plant)?
Water homalomena 'maggy' (shield plant) when the top 2-3 cm (top inch) of soil is dry. Keep the soil consistently moist but never waterlogged; this plant dislikes both drying out and sitting in soggy compost. Water when the top inch feels dry, let excess drain freely, and ease off in winter. Use room-temperature water to avoid cold shock. 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 homalomena 'maggy' (shield plant) toxic to cats and dogs?
Homalomena 'Maggy' (Shield Plant) is toxic to pets. Homalomena is an aroid (family Araceae) and all parts contain insoluble calcium oxalate crystals, which cause mouth and throat irritation, intense drooling, difficulty swallowing, vomiting and diarrhoea if chewed, and the sap can irritate skin. Homalomena is NOT individually named in the ASPCA toxic/non-toxic plant database and no Homalomena species is listed as non-toxic; however, NC State Extension documents it as toxic to dogs and cats, so treat it as toxic and keep it away from pets and children. If ingestion is suspected, contact your vet or the ASPCA Animal Poison Control Center (888-426-4435).
What USDA hardiness zone does homalomena 'maggy' (shield plant) grow in?
Homalomena 'Maggy' (Shield Plant) is rated for USDA zone USDA 10-12 (indoor houseplant elsewhere; not frost hardy). Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.
Homalomena 'Maggy' (Shield Plant) deep-dive guides
Every aspect of homalomena 'maggy' (shield plant) care, each with its own calibrated guide:
- Homalomena 'Maggy' (Shield Plant) watering schedule
- Homalomena 'Maggy' (Shield Plant) light requirements
- Best soil mix for homalomena 'maggy' (shield plant)
- Homalomena 'Maggy' (Shield Plant) fertilizing guide
- When to repot homalomena 'maggy' (shield plant)
- How to propagate homalomena 'maggy' (shield plant)
- Homalomena 'Maggy' (Shield Plant) growth rate & size
- Homalomena 'Maggy' (Shield Plant) cold hardiness
- Homalomena 'Maggy' (Shield Plant) temperature & humidity
- Is homalomena 'maggy' (shield plant) toxic to cats & dogs?
Related guides
Homalomena 'Maggy' (Shield Plant) is also known as Shield Plant, Red Shield Plant, Queen of Hearts, and Homalomena Maggy.