Of the 10 houseplants we cover, our sources clearly place only one in direct sun: aloe vera. Penn State says “full sun to bright indirect light” indoors, and NC State says “full sun to partial shade.” Five more are allowed some sun by one source and kept out of it by another. Four are told to avoid direct sun. So this is a short list, and we would rather say so than stretch it.
What direct sun means in a home
Our reading, which no source states: direct sun means the sun’s rays reach the leaves for part of the day, such as on a sunny sill, as opposed to a bright room where the light is filtered or arrives off a wall. Sources do not mention window direction or glass. The only time they give is NC State’s “2 to 6 hours” for snake plant. If your window gets sun on the plant, the sections below tell you which of our ten plants a source allows there.
The clear case: aloe vera
Both sources that give a light range for aloe point to full sun.
- Penn State: “When growing indoors, place them near sunny windows so they can receive full sun to bright indirect light.” It adds: “Periodically rotate the container to ensure all sides of the plant receive adequate light.”
- NC State: “Grow this plant in full sun to partial shade in very well-drained soils suitable for succulents.”
- UF/IFAS: the plant “can sunburn when moved from low to bright light too quickly,” so make the move gradual.
Aloe is also the plant on our list least suited to a dim corner, as our low light plants guide notes.
Plants one source allows in sun and another does not
| Plant | A source allows | A source warns |
|---|---|---|
| Fiddle leaf fig | “Full sun to partial shade” (UF/IFAS EDIS) | “Need protection from the afternoon sun”; “leaf scorch can occur if the plant is receiving too much direct sunlight” (NC State) |
| Rubber plant | “Medium light or some daily sun” (Texas A&M) | “Protection from the afternoon sun” (NC State) |
| Snake plant | “Direct sunlight only part of the day, 2 to 6 hours” (NC State) | “Keep it out of the direct sun, as it can burn” (Penn State); Clemson names bright indirect as ideal |
| Monstera | “Bright light in summer and direct sun in winter” (Wisconsin) | “Bright light but not direct sun” (Penn State); “not direct sunlight” (NC State) |
| Spider plant | “They can tolerate some direct sunlight, but midday light may scorch leaves” (Clemson) | “Intolerant of direct sunlight” (NC State) |
How to read this table: these plants are not direct sun plants by consensus. The “allows” column is one source, and the other source says the opposite. For each, the wording that both sides can live with is bright light without midday sun, which is covered in bright indirect light plants.
Two details stand out. UF/IFAS EDIS also says fiddle leaf fig “will grow moderately fast in full sun or partial shade,” yet NC State and Texas A&M give narrower ranges. Wisconsin ties monstera’s direct sun to winter and bright light to summer, and gives no reason, so we do not guess at one.
Plants sources keep out of direct sun
- ZZ plant: “Scalding and browning of leaves can occur if the plant is placed in direct sunlight” (NC State). Clemson says “Locate ZZ plants anywhere except in full sunlight.”
- Peace lily: “They should not be placed in direct sun as the heat will scorch the foliage” (Clemson). UF/IFAS EDIS lists “No direct sun.”
- Pothos: “Direct sun will lead to the yellowing of leaves” (Penn State). Wisconsin says it “does not tolerate much direct sunlight.”
- Calathea: “Direct sunlight can cause leaf burn” (NC State, network prayer plant), and “Direct sunlight will damage the leaves” (Alberta prayer plant).
Moving a plant into sun
Two sources give a rule. UF/IFAS says to make the move gradual for aloe vera. Wisconsin says monstera moved outside for summer must be “acclimated to higher light levels gradually or the leaves will suffer sunburn.” Our reading is that this applies to any plant going from a dim spot to a sunny sill, because the sources are otherwise silent on how long the change should take.
Sun also dries soil faster, which is our reading and not something the sources compare. Our how often to water houseplants guide gives the rule for each plant.
How to choose
- Pick aloe vera if the sill is sunny. It is the only plant with two sources behind full sun.
- Treat the five contested plants as a trial. If the sun reaches them, watch for the scorch, yellowing or brown spots the sources name.
- Keep the four avoiders back from the glass. ZZ plant, peace lily, pothos and calathea have no source allowing direct sun.
- Check pet status before you choose. Aloe vera is toxic to cats and dogs per the ASPCA. See pet safe houseplants.
Short version
Aloe vera is the only one of our ten plants that sources clearly place in direct sun. Fiddle leaf fig, rubber plant, snake plant, monstera and spider plant are allowed some by one source and warned off by another, and ZZ plant, peace lily, pothos and calathea are told to avoid it. For the plants that need a gentler spot, see medium light plants.
Frequently asked questions
Which houseplants can take direct sun?
Of our 10 plants, only aloe vera is clearly placed in direct sun: Penn State says full sun to bright indirect light and NC State says full sun to partial shade. Fiddle leaf fig, rubber plant, snake plant, monstera and spider plant are allowed some sun by one source and warned off by another.
Can snake plant take direct sun?
Sources conflict. NC State says to place it where it gets direct sunlight only part of the day, 2 to 6 hours. Penn State says to keep it out of the direct sun, as it can burn.
Which houseplants should stay out of direct sun?
Our sources say direct sun can scald or brown ZZ plant leaves (NC State), scorch peace lily foliage (Clemson), yellow pothos leaves (Penn State) and burn calathea leaves (NC State).
How do I move a plant into more sun?
Gradually. UF/IFAS says aloe vera can sunburn when moved from low to bright light too quickly, and Wisconsin says monstera moved outside needs to be acclimated to higher light levels gradually. Our sources do not give a timetable.
Sources
- Aloe, a hardy houseplant, Penn State Extension
- Aloe vera, Plant Toolbox, NC State Extension
- Aloe vera, UF/IFAS Gardening Solutions
- Aloe, toxic and non-toxic plants, ASPCA
- Ficus lyrata (fiddle-leaf fig), Plant Toolbox, NC State Extension
- Ficus lyrata, fiddle leaf fig, UF/IFAS EDIS
- Ficus elastica (rubber plant), Plant Toolbox, NC State Extension
- Rubber plant, Texas A&M AgriLife, Aggie Horticulture
- Dracaena trifasciata (Mother-in-law's tongue), Plant Toolbox, NC State Extension
- Snake plant, a forgiving low-maintenance houseplant, Penn State Extension
- Exciting houseplant selections for beginners, Clemson Home & Garden Information Center
- Monstera as a houseplant, Penn State Extension
- Monstera deliciosa (Swiss cheese plant), Plant Toolbox, NC State Extension
- Monstera deliciosa, University of Wisconsin-Madison Extension
- Spider plant, Clemson Home & Garden Information Center
- Chlorophytum comosum (spider plant), Plant Toolbox, NC State Extension
- Zamioculcas zamiifolia (ZZ plant), Plant Toolbox, NC State Extension
- ZZ plant, indoor care and growing tips, Clemson Home & Garden Information Center
- ZZ plant, EDIS, UF/IFAS EDIS
- Peace lily, Clemson Home & Garden Information Center
- Spathiphyllum, EDIS, UF/IFAS EDIS
- Pothos as a houseplant, Penn State Extension
- Pothos, Epipremnum aureum, University of Wisconsin-Madison Extension
- Goeppertia kegeljanii (network plant), Plant Toolbox, NC State Extension
- Goeppertia albertii (Alberta prayer plant), Plant Toolbox, NC State Extension