Star Windowpane Plant
Haworthia retusa
A striking Haworthia with sharply angled, translucent-tipped leaves forming a star-like rosette.
The essentials at a glance
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Watering
Every 14 days
-
Light
Bright indirect light
-
Humidity
40–60 %
-
Temperature
10–27 °C
How to care for your Star Windowpane Plant
Everything you need to keep your Star Windowpane Plant healthy: watering, light, humidity, feeding, repotting and pruning.
Haworthia retusa, often called the Star Windowpane Plant, is a fascinating succulent prized for its distinctively shaped, plump leaves. These leaves are typically triangular and end in a flattened, translucent tip, allowing light to penetrate the plant's interior, an adaptation to its natural habitat where it often grows partially buried. The rosettes have a somewhat 'retuse' or blunted appearance. It's an easy-care plant that thrives in bright, indirect light and well-draining soil, perfect for indoor enthusiasts.
Watering your Star Windowpane Plant
Every 14 days
Water deeply when the potting mix is entirely dry.
How to know it needs water
- Leaves lose some plumpness
- Soil feels completely dry
How much light a Star Windowpane Plant needs
Bright indirect light
Bright indirect light, avoiding intense direct sun.
- Direct sun tolerated
- 0 to 2 h a day
- Orientations that suit it
- North, North-east, East, South-east, South, South-west, West, North-west
Humidity and misting
40–60 %
Low to medium (40-60%) Misting is not recommended; it can lead to fungal issues.
Feeding and fertiliser
Every 90 days
Fertilize sparingly during active growth, typically spring and early summer.
- Recommended feed
- Diluted succulent fertilizer (low nitrogen). · 1-2-1
Repotting your Star Windowpane Plant
Every 24 months
Unpot, check roots, repot in fresh, well-draining succulent mix.
- When
- Spring
- Potting mix
- Cactus and succulent mix
- Mix in
- perlite, pumice, coarse sand
The tell-tale signs
- Roots circling the pot
- Plant appears root-bound
- Reduced growth rate
Pruning your Star Windowpane Plant
Remove spent flower stalks and any yellowed or dead leaves. Cut stalk near base with clean snips.
Through the year
Watering is not set once and for all: it follows the light and the growth. Allow 25 days between waterings in the depth of winter, against 11 in the growing season.
- 25 J
- 21 F
- 14 M
- 13 A
- 11 M
- 11 J
- 11 J
- 13 A
- 14 S
- 17 O
- 21 N
- 25 D
Active growth · Days between waterings
Good to know
- Known for its truncated, triangular leaves with translucent tips.
- The rosette often has a flattened top, allowing light into the leaf windows.
Frequently asked questions about the Star Windowpane Plant
How do you care for a Star Windowpane Plant?
Water it every 14 days. Give it bright indirect light. Ideal humidity: 40–60 %. Ideal temperature: 10–27 °C. Water deeply when the potting mix is entirely dry.
How often should you water a Star Windowpane Plant?
Every 14 days Water deeply when the potting mix is entirely dry. How to know it needs water : Leaves lose some plumpness ; Soil feels completely dry.
How much light does a Star Windowpane Plant need?
Bright indirect light Bright indirect light, avoiding intense direct sun. 0 to 2 h a day
Is the Star Windowpane Plant toxic to cats and dogs?
No, the Star Windowpane Plant is not listed as toxic to cats and dogs. That is still no reason to let your pets chew on it.
Why are my Star Windowpane Plant leaves turning yellow?
Yellowing most often comes from too much water: the mix stays wet and the roots suffocate. Check that the pot drains, empty the saucer, and let the mix dry before watering again. Too little light or a cold draught cause the same symptom.
When should you repot a Star Windowpane Plant?
Repot every 24 months, ideally in spring. Unpot, check roots, repot in fresh, well-draining succulent mix.
At a glance
- Family
- Asphodelaceae
- Category
- Succulent
- Placement
- Indoor and outdoor
- Mature height
- 15 cm
- Growth
- Slow
- Temperature
- 10–27 °C
- Pot materials
- terracotta, ceramic
- Growth
- Reaches maturity in 5 years
These figures are for an average plant. In the app they are recalculated for yours, based on your room, its orientation and the season.
And for your plant, in your home?
In the app this plant becomes yours: a watering schedule tuned to your home, health tracking from photos, and reminders at the right moment.









