Summer Houseplant Care: Helping Your Tropicals Thrive in the Heat

Summer is the season your houseplants have been waiting for. Long days, warm air, and strong light are exactly what tropical plants like pothos and monstera evolved for — this is when they put out the most growth all year. A few small adjustments to your routine now will pay off in bigger leaves and taller vines by fall.

Your plants are drinking more

Warmth and bright light speed everything up: the soil dries faster, and the plant is actively growing, so it’s pulling more water through its roots. A plant that was happy with a weekly drink in winter might want water every four or five days now.

Don’t just water on a fixed schedule, though — check first. Push a finger an inch or two into the soil, and only water when that top layer feels dry. The plant tells you what it needs; your job is to keep checking more often now that things move quickly. If you’re running a moss pole, the moss dries out faster in summer too, so top it off through the funnel cap a little more frequently to keep those aerial roots gripping.

Watch the light — bright is good, scorching is not

Summer sun is stronger and sits higher in the sky, and a windowsill that was a perfect bright spot in December can turn harsh by July. Pothos and monstera want bright, indirect light — hours of direct midday sun will bleach and crisp their leaves.

If you see pale, washed-out patches or dry brown spots where the sun hits hardest, pull the plant back a foot or two from the glass, or filter the window with a sheer curtain. That small move is usually all it takes.

Feed while they’re growing

The growing season is the time to fertilize. Your plant is building new leaves and stems and can actually use the nutrients now, which isn’t true in the dormant depths of winter. A balanced houseplant fertilizer at half strength, every few weeks through summer, keeps that new growth coming. Just don’t overdo it — more fertilizer doesn’t mean more growth, and too much can burn the roots.

Mind the air conditioning

Here’s the summer catch: while it’s hot and humid outside, air conditioning makes the air inside dry, and a plant sitting in the direct path of an AC vent gets hit with cold, drying drafts it won’t enjoy. Keep your tropicals out of that direct airflow, and if the leaf edges are going crispy, give them a humidity boost — grouping plants together or setting pots on a water-and-pebble tray both help.

Give the new growth something to climb

This is the big one. Summer is when pothos and monstera really want to climb, and a plant with support grows differently than one left to trail. Given something to grip, a monstera starts putting out bigger, more mature, fenestrated leaves — the dramatic split foliage you actually bought the plant for.

So if you’ve been meaning to add a moss pole or a trellis, now is the moment — you’ll get the most visible payoff during these fast-growth months. Guide the new stems onto the support as they extend, and add height as the plant climbs.

A quick note on summer travel

If you’re away for a week, don’t panic-water right before you leave. Instead, water thoroughly the morning you go, move the plants slightly back from the brightest windows so they dry more slowly, and group them together to pool a little humidity. Most pothos and monstera handle a week on their own just fine — they’re far more forgiving of a missed drink than of sitting in soggy soil.

Make the most of the growing season — give your climbers something to grow on. Shop the pieces below.

Photo by Megan Nixon on Unsplash.