Your Scarlet Heart (Anthurium Plant) Care Guide17 July 2026Welcome to What The Flowers: Your Scarlet Heart (Anthurium Plant) Care Guide Hey there, plant parent! Thanks for grabbing one of our Scarlet Hearts — you've made an excellent choice. We're What The Flowers, and we're here to make sure your flamingo flower doesn't become a sad, droopy mess. Let's talk about keeping this beauty alive and thriving. Why Your Scarlet Heart Actually Rocks Look, your Scarlet Heart isn't just a pretty face. This plant is basically a tiny air-purifying machine, filtering out nasty stuff like formaldehyde, ammonia, and xylene from your space. It's pumping out oxygen and upping humidity while looking absolutely gorgeous doing it. Plus, it's a symbol of friendship and hospitality — so you've basically got a beautiful, hardworking friend sitting on your shelf. Not bad, right? Light: Give It the Spotlight It Deserves Your Scarlet Heart wants bright, indirect light. We're talking a cozy spot near a window where it's getting plenty of glow without direct sun blasting it. Direct sunlight will scorch those beautiful leaves and turn them yellow or sad. East or west-facing windows are your sweet spot. If your plant isn't flowering like it should, it's probably telling you it needs more light. Listen to it. Watering: The Make-or-Break Part Here's the deal: overwatering kills more Scarlet Hearts than anything else. Water when the top 50 to 75 percent of the soil is dry, then water thoroughly until it drains from the bottom. Empty the saucer after — don't let your plant sit in a puddle like it's at a pool party. In winter, ease off because the plant's basically napping. If leaves start drooping even though the soil is wet, you've overwatered and need to repot into fresh soil ASAP. Learn this part and you're golden. Humidity and Temperature: Keep It Tropical These are tropical plants, so they like it warm and humid. Aim for 70 to 85 degrees Fahrenheit. Mist the leaves regularly or pop the pot on a saucer with pebbles and water — as it evaporates, boom, instant humidity. Keep it away from cold drafts and heating vents because your Scarlet Heart isn't trying to shiver. Soil and Potting: Drainage is Everything Use a well-draining potting mix. Seriously, this matters. Scarlet Hearts hate wet roots, so good drainage is non-negotiable. When you repot in spring, go only slightly bigger than the current pot — these plants actually like being a bit snug and will bloom better for it. Fertilizing: Less is More During spring and summer, feed your Scarlet Heart once a month with half-strength balanced fertilizer. Stop in winter — the plant's resting, and over-fertilizing will just cause problems like yellow spotting. Don't get crazy with it. When Things Go Wrong Yellow or brown leaves? You're probably overwatering. Check your drainage. Pale leaves or no flowers? Your plant needs more light. Wilting despite wet soil means root rot — repot immediately into dry soil. Brown tips usually mean low humidity or chlorine in your water; switch to filtered water and mist more. Occasionally you'll spot spider mites or mealybugs; if you do, hit them with neem oil or insecticidal soap. Propagation: Grow Your Collection Once your Scarlet Heart's mature and throwing out stems, snip healthy ones below a node and stick them in water or moist soil. Keep it warm and humid, and roots'll show up in a few weeks. Easy way to multiply your plants or gift a plant baby to someone who actually deserves one. Real Talk: Pet Safety If you've got cats, dogs, or other curious critters, keep this plant out of reach. Scarlet Hearts are toxic if chewed — the sap irritates mouths and eyes. Choose a high shelf or go with a pet-safe alternative if needed. Seasonal Shifts Spring and summer? Your Scarlet Heart's in beast mode — blooming like crazy, growing like mad. Water more, fertilize monthly. Fall and winter it slows down, looks less vibrant, needs less water and no fertilizer. That's normal. It'll bounce back. You've Got This Right light, smart watering, a little humidity — that's all your Scarlet Heart needs to thrive. Check in regularly, tweak as you go, and watch it flourish. Thanks for choosing What The Flowers. We're rooting for you. SHOP ALL PLANTS HERE