Philodendron spiritus-sancti is part of the Araceae family, the native range of this species is Brazil (Espírito Santo) where it grows as a climber primarily in the wet tropical biome.
Philodendron spiritus-sancti was first published in 1987 by George Bunting in Phytologia 61(7); until 2023 only three natural populations were known, one being the state of Espirito Santo near the town of Domingos Martins (Brazil) at an elevation of 800m above sea level. It is considered a hemiepiphytic vine which means it either begins life as a seed which has fallen to the ground which proceeds to climb a tree or a species that begins life as an epiphyte and then climbs downward to set root in the soil.
Leaves are typically an elongated triangle shape, matte dark green and sit upon long petioles.
Genus name comes from the Greek ‘philo’ meaning loving and ‘dendro’ meaning tree. The specific epithet is from the Portuguese ‘Espirito Santo’ meaning ‘holy spirit’, its likely to have been latinized to be ‘Spiritus-sancti’.
Light: Philodendron spiritus-sancti thrives in bright light that is not direct. Strong, unfiltered sunlight can harm its leaves. Insufficient light may result in slower growth and less vibrant 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. Using purified water, such as rainwater or distilled water, can be beneficial.
Soil: An airy potting mix that drains well is essential. A blend specifically created for aroids, incorporating materials such as orchid bark, perlite, and coco chips or sphagnum moss, is often recommended to provide the necessary air circulation and drainage. It prefers slightly acidic to neutral soil.
Fertilising: Use a diluted liquid fertiliser every four to six weeks during the active growing period in spring and summer. Reduce or stop fertilising during the autumn and winter months. This plant is not a heavy feeder.
Temperature: This plant prefers warm temperatures, ideally between 19-26°C. It should be shielded from cold draughts and sudden temperature changes, which can occur indoors, particularly during colder UK months. Consistent warmth and stable conditions are crucial.
Humidity: High humidity levels are highly beneficial for Philodendron spiritus-sancti, ideally between 60-80%. Consider using a humidifier or placing the plant on a pebble tray with water to maintain optimal conditions, particularly during drier indoor periods in the UK. Maintaining stable humidity is very important.
Growth Habit: This Philodendron typically has a climbing growth habit. Providing a sturdy support such as a moss pole or wooden plank is crucial for encouraging its impressive leaf size and vigorous vertical development. It is often found growing on rocky walls in its natural habitat.
Toxicity: Like other Philodendrons, this plant is toxic if consumed by humans or pets,