Philodendron warscewiczii is part of the Araceae family and its native range is S. Mexico to Central America. It is a climber and grows primarily in the seasonally dry tropical biome.
'Flavum' is a cultivar with broad, deeply divided leaves that emerge a vibrant chartreuse, gradually maturing to a bright, golden-yellow.
Genus name comes from the Greek ‘philo’ meaning loving and ‘dendro’ meaning tree. The specific epithet honours the Polish botanist Józef Warszewicz. 'Flavum' is a Latin word meaning yellow or golden, aptly describing the plant's golden-yellow leaf colour.
Light: Philodendron warscewiczii 'Flavum' thrives in bright light that is not direct. Strong, direct sunlight can harm its leaves, potentially causing burning or a fading of its vibrant colour. Insufficient light may result in slower growth and duller, greener foliage. A position near a window with filtered light in a typical UK home is ideal.
Water: The potting mix should be kept consistently damp but not saturated. Allow the upper inch or two of the soil to dry between waterings. Ensure the pot drains exceptionally well to prevent root problems, which can be an issue, especially in the UK's climate. Reduce watering in autumn and winter when the plant's growth naturally slows.
Soil: An airy potting mix that drains well is essential. A mix specifically created for aroids, incorporating materials such as coco coir, perlite, and orchid bark, is often recommended to provide the necessary air circulation and drainage.
Fertilising: Use a diluted liquid fertiliser every two to four weeks during the active growing period in spring and summer. Reduce or stop fertilising during the autumn and winter months.
Temperature: This plant prefers warm temperatures, ideally between 18°C and 27°C. It should be shielded from cold draughts and sudden temperature changes, which can occur indoors, particularly during colder UK months.
Humidity: Higher humidity levels are highly beneficial for Philodendron warscewiczii 'Flavum'. Consider using a humidifier or placing the plant on a pebble tray with water to maintain optimal conditions, especially during drier indoor periods in the UK.
Growth Habit: This Philodendron typically has a bushy, upright growth habit, forming a large, striking plant. It is a semi-self-heading Philodendron that will grow to a considerable size over time.
Toxicity: Like other Philodendrons, this plant is toxic if consumed by humans or pets,