Peace Lily
Scientific Name
Spathiphyllum wallisii
AKA
Spath Lily
Origins / Hardiness Zones
Central America, Asia / 11-12 USDA
About
A lush cluster of green leaves create the perfect backdrop for the elegant white blooms in spring and sometimes with a bonus appearance in the fall.
Light Needs
Water Schedule
Temperature
Humidity Levels
Toxicity
Can adapt to average room humidity, but will thrive in higher humidity, especially in the summer or hot, dry conditions (like near a heater). Your Peace Lily will also appreciate occasional misting to help remove dust from their leaves and keep brown tips at bay.
Peace Lilies are highly toxic to pets and humans.
Bright, indirect light is ideal for your Peace Lily. Susceptible to leaf burn in long stretches of direct light. Can tolerate lower light conditions, but be sure to adjust watering and expect the plant to take on an elongated, sparse look (and fewer, if any flowers).
This plant prefers to stay fairly moist, but certainly not soggy sopping wet. Check the soil frequently in summer to determine if it's starting to dry out. In winter, you can be a little more lax, allowing the top inch or so to dry out before watering again.
Peace Lilies generally prefers temperatures above at least 65°F, but will thrive in even warmer temps. Keep in mind, some fluctuation into slightly cooler temps at night and in winter (only a couple degrees cooler) will encourage your plant to give you plentiful blooms!
Try to repot every 2-3 years in the spring, especially when tending to a younger plant. Increase the pot size by about 2 inches each time or until you're satisfied with the size. It's still important to repot at this stage, but it'll be an exercise of refreshing the soil, keeping the pot size the same, and possibly doing some root trimming to restrict the plant's growth. Keep in mind, a mature and lightly rootbound plant is more likely to flower!
If you're not already planning to repot, you can fertilize during the spring and summer months. Once to every two months should be plenty. You can try a balanced liquid or water-soluble fertilizer—always diluted more than the recommended strength. Try something with more potassium (K) if you're specifically looking to see blooms.
In order to achieve plenty of blooms, Peace Lilies need a resting period in winter. You'll have to keep them in slightly cooler temperature ranges (around 60°F) and a bit less light (and therefore less water). You may even allow the plant to get rootbound. A little bit of stress is actually a trigger for the plant to flower more vigorously.