Peace Lily
Spathiphyllum wallisii
Family Araceae
White flags in the darkest corner of the house — that's a peace lily doing what almost no other houseplant can: blooming reliably in low light. Between flowers it holds a glossy deep-green mound that reads elegant in rooms where most plants just give up.
Famously communicative, it wilts theatrically when thirsty and stands right back up — a built-in reminder system for busy households. Keep it where cats and dogs won't sample the leaves. For the office desk or the dim north room, this is the flowering answer.
Medium to low indirect — blooms more with brighter light
Moderate water
Moderate growth
Deer-resistant
None winter chill
From the print shop
Growing peace lily? Hang it.
Our Plant Library collection carries peace lily — Spathiphyllum wallisii, print Nº 352, “Peace Lily.”
526 designsfrom $12.99white or black backgroundmatte poster, unframed
Will it thrive where you are?
Enter your ZIP — we look up your USDA hardiness zone (2023 map) and check it against what peace lily actually needs.
Hardy inZones 11-12Peace Lily · Common problems
Common peace lily problems
Pests
2 problems on file
- Mealybugs (rare)
- Fungus Gnats
Diseases
2 problems on file
Peace Lily · Growing & propagation
Growing peace lily
- Light
- Medium to low indirect
Blooms more with brighter light
- Water
- Moderate-High
Dramatic full-plant wilt when thirsty, instant recovery
Soil- Rich potting mix · pH 5.8 - 6.5
Fertilizer- Monthly light feed spring-summer
Pruning- As needed
Cut spent blooms and yellow leaves at the base.
Spacing- One per pot
How to plant & propagate peace lily
- Propagate
- Stem/leaf cuttings, division, or pups
Peace Lily · Calculators & field guides
A little help in the garden.
Peace Lily · Yearly calendar
The peace lily year, month by month
Jan
BloomJanuary to December
BloomBloomJanuary to December
What each band means
- Bloom — flowers open — pollinators working, frost on blossoms is the danger.
These are the species' typical months — expect them a few weeks earlier in warm zones and later in cold ones. Watch the plant, not just the calendar.
Peace Lily · Ecology & uses
Ecology & uses
Spathiphyllum wallisii
Peace Lily in the garden system
- Moisture
- Facultative / average
- Deer
- Resistant
A safer unfenced choice
Origin- Introduced
What peace lily is grown for
⚠ Toxic if eatenToxic to cats/dogs (calcium oxalate)
Use- Low-light blooms
- Use
- Offices
Edibility, identification, and traditional-use notes here are general reference — not medical or veterinary advice, and not a claim that any plant treats or prevents anything. Medicinal ratings record how strongly a plant features in herbal tradition, nothing more. Never eat or dose a plant you have not positively identified. More on how to use this library.
Peace Lily · Varieties & cultivars
Choosing a peace lily variety
'Domino' (variegated); 'Sensation' (giant); standard
Sources & plant identity
Know what you’re growing.
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Peace Lily
Spathiphyllum wallisii
The plant, at a glance.
- Botanical name
- Spathiphyllum wallisii
- Plant family
- Araceae
- Growth habit
- Houseplant · Perennial
- Origin
- Introduced
- USDA plant symbol
- SPWA2
- Invasive risk
- Low
Hardiness, size and timing vary with your cultivar, soil and climate.
Rooted in research.
University extension research, brought together with hands-on growing experience at Story Thyme Farms.
for Peace Lily
Research from these sources
Publisher marks identify sources, not sponsorship or endorsement.
Questions
Peace Lily questions, answered straight.
Do deer eat peace lily?
Rarely — peace lily is considered deer-resistant, which makes it one of the safer unfenced choices in deer country. Hungry deer in a hard winter test every rule, but it's a low-risk pick.
Is peace lily safe for kids and pets?
No — treat it as toxic if eaten. Toxic to cats/dogs (calcium oxalate) Site it accordingly if children or pets roam the garden. This is general reference, not medical or veterinary advice — call a vet or poison control if something has actually been eaten.
How do you propagate peace lily?
Stem/leaf cuttings, division, or pups.
Elsewhere
Where peace lily sits in the library.
Monstera
Golden Pothos
Snake Plant
Heartleaf Philodendron