Watering schedule

How often to water Philodendron Selloum (Tree Philodendron) (Philodendron bipinnatifidum (syn. Thaumatophyllum bipinnatifidum, P. selloum)) — the schedule

Also called Tree philodendron, Selloum, Lacy tree philodendron, Horsehead philodendron, Hope philodendron, Split-leaf philodendron.

More about philodendron selloum (tree philodendron)

Watering at a glance

Base rhythm	When the top 2-3cm of compost feels dry, roughly weekly in summer
Spring / summer	Spring and summer: water when the top of the soil is dry to roughly a knuckle deep — typically when the soil tells you it is time.
Autumn	Autumn: growth slows, so stretch the interval and let it dry a little more between waterings.
Winter	Winter: water noticeably less — often half as often — because low light and dormancy slow water use right down.
Light	Bright indirect light (just back from a sunny window)

About Philodendron Selloum (Tree Philodendron)

Philodendron bipinnatifidum (syn. Thaumatophyllum bipinnatifidum, P. selloum) · also called Tree philodendron, Selloum · tropical

The tree philodendron is a large, non-climbing tropical aroid grown for its dramatic, deeply lobed evergreen leaves and self-heading rosette habit. Its one defining need is bright, filtered light paired with consistently moist but well-drained soil. Give it room to spread, warmth and steady humidity, and it makes a bold, low-maintenance statement houseplant.

Ideal humidity: 50-60%

Watch for — Yellowing lower leaves: Usually a watering issue. Soft, drooping yellow leaves with damp, sour-smelling compost point to overwatering and incipient root rot; let the soil dry further and check drainage. Widespread yellowing can also signal a nitrogen, potassium or iron shortfall during the growing season.

The watering schedule, season by season

Philodendron Selloum (Tree Philodendron) likes a soak-then-partly-dry rhythm — let the top of the soil dry before watering again, and never leave it standing in water. The base rhythm for philodendron selloum (tree philodendron) is when the top 2-3cm of compost feels dry, roughly weekly in summer, but the real interval moves with the season, the light and the pot — so treat the figures below as a starting point and always confirm with the plant itself.

Spring & summer (active growth): Spring and summer: water when the top of the soil is dry to roughly a knuckle deep — typically when the soil tells you it is time.
Autumn (slowing down): Autumn: growth slows, so stretch the interval and let it dry a little more between waterings.
Winter (rest / dormancy): Winter: water noticeably less — often half as often — because low light and dormancy slow water use right down.

Keep the compost consistently lightly moist in active growth, watering once the top 2-3cm has dried, then reduce sharply in winter. It is intolerant of drought but equally sensitive to waterlogging, so never let the pot stand in a saucer of water. Use tepid water and ensure the pot drains freely to avoid root rot.

Want this turned into a live reminder that adjusts to your home and the weather? The Growli watering calculator takes your pot size, light and season and returns a starting interval for philodendron selloum (tree philodendron) in seconds.

How to tell philodendron selloum (tree philodendron) needs water

A calendar is the worst way to water philodendron selloum (tree philodendron). Check the plant and the soil instead — for this species, look for these signals in order:

The top 2-3 cm of soil is dry to the touch (or a knuckle-deep finger test comes back dry).
Lifting the pot, it feels distinctly light.
Leaves droop slightly or lose a little of their gloss just before they truly need water.

The most reliable single check is the first one on that list. When two signals agree, water; when they disagree, wait a day and look again — under-watering philodendron selloum (tree philodendron) for a day is almost always safer than over-watering it.

Overwatering vs underwatering philodendron selloum (tree philodendron)

The two failure modes can look alike at a glance, so check the soil weight and wetness before you decide. For philodendron selloum (tree philodendron) specifically:

Signs you are overwatering

Yellowing lower leaves and a pot that stays wet and heavy for days.
Soft, brown, mushy stems or a sour soil smell — root rot.
Fungus gnats breeding in permanently damp soil.

Signs you are underwatering

Drooping, curling leaves with crispy brown edges that perk up after watering.
The rootball shrinks away from the pot and water runs straight down the sides.
Slow growth and a generally tired, washed-out look.

Watering philodendron selloum (tree philodendron) on a fixed weekly calendar regardless of season is the most common mistake — in dim winter light the same routine drowns it. Check the soil, not the date.

Water quality notes

Tap water is generally fine for philodendron selloum (tree philodendron). If your water is very hard and you see brown leaf tips, switch to filtered or rainwater.

Seasonal and environmental adjusters

Every figure above shifts with the conditions in your home. For philodendron selloum (tree philodendron), the levers that matter most are:

More light and warmth speed drying; the brighter the spot, the shorter the real interval.
Pot size and material matter — small terracotta pots dry far faster than large glazed or plastic ones.
Lifting the pot to feel its weight is more reliable than any calendar for judging when to water.

Pot choice is part of this too — work out the right size with the pot size calculator, since a pot that is too big stays wet long enough to rot the roots of philodendron selloum (tree philodendron).

Philodendron Selloum (Tree Philodendron) watering — frequently asked questions

How often should I water philodendron selloum (tree philodendron)?

Water philodendron selloum (tree philodendron) when the top 2-3cm of compost feels dry, roughly weekly in summer. Spring and summer: water when the top of the soil is dry to roughly a knuckle deep — typically when the soil tells you it is time. Winter: water noticeably less — often half as often — because low light and dormancy slow water use right down.

How do I know when philodendron selloum (tree philodendron) needs water?

The top 2-3 cm of soil is dry to the touch (or a knuckle-deep finger test comes back dry). Lifting the pot, it feels distinctly light. Leaves droop slightly or lose a little of their gloss just before they truly need water. The single most reliable test for philodendron selloum (tree philodendron) is the first signal on that list — checking the soil or the plant directly always beats watering by the calendar.

What does an overwatered philodendron selloum (tree philodendron) look like?

Yellowing lower leaves and a pot that stays wet and heavy for days. Soft, brown, mushy stems or a sour soil smell — root rot. Fungus gnats breeding in permanently damp soil. Watering philodendron selloum (tree philodendron) on a fixed weekly calendar regardless of season is the most common mistake — in dim winter light the same routine drowns it. Check the soil, not the date.

What are the signs of an underwatered philodendron selloum (tree philodendron)?

Drooping, curling leaves with crispy brown edges that perk up after watering. The rootball shrinks away from the pot and water runs straight down the sides. Slow growth and a generally tired, washed-out look.

Can I use tap water on philodendron selloum (tree philodendron)?