The core summer adjustment is simple: everything gets watered far more often than the rest of the year. Whatever schedule a plant runs on in the mild months, the dry-season heat compresses it dramatically. Thirsty tropical and leafy plants in pots may need water every single day; temperate flowers and shrubs every day or two; even Mediterranean plants and succulents need noticeably more than their winter near-nothing.

Small pots are the most demanding of all. A container under about ten inches across, and especially breathable terracotta, can dry out completely between a morning and an evening on a hot day — so a little herb pot may genuinely need watering twice a day in a heatwave, while a large planter coasts through. The smaller and more exposed the pot, the more often you check it.

Keep watering deep, not shallow. Even under pressure to water often, soak the entire root ball until water runs from the drainage holes rather than giving frequent light sprinkles — deep roots survive heat, shallow ones fry. If you're unsure whether a plant needs it, the finger test settles it: push a finger into the mix, and if it's dry below the surface, water.

When you water matters almost as much as how much. Early morning is best by far: it lets plants drink and fill their tissues before the heat arrives, moves water to the roots before the sun can evaporate it, and lets any splashed foliage dry through the day, discouraging fungus. A morning-watered plant faces the afternoon fully hydrated.

Avoid watering in the heat of midday. Much of what you apply evaporates before it reaches the roots, so it's wasteful and inefficient, and you're out working in the worst of the sun for little benefit. If a plant is clearly stressed and can't wait, an early evening watering is the acceptable second choice — just aim at the soil, not the leaves, so foliage isn't left wet overnight.

Always water at the base of the plant rather than showering it from above. Directing water straight to the root zone gets it where it's needed, wastes less to evaporation, and keeps leaves dry. A long-spout watering can or a hose run gently at the soil line does this far better than a sprinkler.

Heatwaves and dry Santa Ana winds are the summer's real danger, and handling them is the highest-stakes skill of the season. When temperatures spike past 90°F — especially when nights stay above 70°F and the plant never gets to cool and recover — a container plant's water use can double overnight. The key is to act before the heat, not during it: check the forecast, and water deeply the evening before or the morning of a hot spell so plants go into it fully charged rather than already thirsty.

Through a sustained heatwave, escalate. Move to daily watering, or twice daily for small and exposed pots, always soaking the whole root zone rather than dampening the top. Group your containers together so they shade one another and raise the humidity around themselves, and move anything portable and vulnerable — ferns, tropicals, young plants — into afternoon shade or under cover for the duration. Dry Santa Ana winds are as punishing as the heat itself, stripping moisture from leaves and soil, so treat a windy hot spell as seriously as a still one.

Learn to read wilt, because not all of it means the same thing. Temporary wilt — a plant drooping in the afternoon heat but recovering by evening or morning — is a stress response, not an emergency, and it recovers within hours once the root zone is soaked. Terminal wilt, where a plant collapses and does not bounce back after watering, is often irreversible. The lesson is to water a genuinely wilting plant promptly, before temporary stress tips into permanent damage.

Watering isn't your only tool — a few simple measures dramatically slow how fast pots dry out, buying your plants and yourself real breathing room. The most effective is mulch: a two-to-three-inch layer of bark, compost, or even dried leaves over the soil surface of a pot shades the soil, slows evaporation, and keeps the root zone cooler. Keep it pulled back slightly from stems and trunks so it doesn't trap moisture against them.

Afternoon shade is the next great ally. Our summer sun is intense enough to scorch many plants, and moving portable pots — or siting them from the start — where they get direct morning sun but shade through the punishing afternoon protects foliage and slashes water loss. Shade cloth over a fixed grouping does the same job for plants that can't be moved.

Grouping pots together is a quietly powerful trick. Clustered containers shade each other's sides and soil, and the moisture evaporating from each raises the humidity around the whole group, so they all dry more slowly than a lone pot standing exposed. For plants you can't tend daily, self-watering planters with a reservoir or a simple drip line on a battery timer can bridge the gap — though in extreme heat even these can run dry, so size up to more soil volume where you can.

Summer plants send clear signals if you know how to read them. Catching stress early — before it becomes damage — is what separates a plant that sails through the season from one that limps into fall. Watch for the following, and respond to what the plant is telling you.

A dried-out pot where the soil has shrunk away from the sides is a special case: water runs straight down the gap and out the bottom without wetting the mix. Rehydrate it by soaking the whole container in a tray or bucket of water until the mix swells back, then resume normal watering.

Summer changes how you feed, too. During normal warm growth, actively growing potted plants use nutrients and benefit from regular light feeding — frequent watering flushes nutrients out of the limited soil in a pot, so container plants genuinely need feeding through the growing season. A diluted, balanced fertilizer at the maker's recommended interval keeps them fueled.

But back off during an actual heatwave. Fertilizer salts can stress and dry out a plant already struggling in extreme heat, and a heat-stressed plant isn't growing much anyway. Hold off feeding until the temperatures ease and the plant is watered and stable, then resume. Feeding a scorched, wilting plant does harm, not good.

One more heat note: some drought-adapted and Mediterranean plants deliberately go dormant in peak summer, dropping leaves to conserve water. If a plant that does this loses its foliage, resist the urge to water it heavily back to life — extra water on a dormant plant in hot, wet soil invites rot. Let it rest, water sparingly, and it will return as the season cools.

Nearly every summer problem traces to heat and water — too little, occasionally too much, or the pests that thrive in hot, dry air. The grid below covers what to watch for through the dry season.

Pulling it together, here's the rhythm of a well-run SoCal summer. None of it is complicated — it's mostly consistency and paying attention through the hottest, driest stretch of the year.

Day to day, check your pots every morning and water deeply at the base of anything that's dried below the surface, giving small and exposed containers priority. Water in the early morning whenever you can, and keep the water going to the soil rather than the leaves. Keep a two-to-three-inch layer of mulch on your pots, and keep containers grouped together to slow their drying.

Around the weather, watch the forecast and water deeply ahead of any heatwave or Santa Ana event, escalating to daily or twice-daily watering while it lasts and pulling vulnerable plants into shade. Feed actively growing plants lightly through the season, but hold fertilizer during extreme heat. And through it all, read your plants — respond fast to wilt, protect against scorch, and let summer-dormant plants rest dry. Do that, and your containers will come through the dry season and into fall in full health.

Summer is the season that tests a Southern California gardener, but it rewards a simple shift in mindset. You are no longer sharing the work with the weather — through these rainless months, you are the entire water supply, and your plants depend on your consistency in a way they never do in the wet winter. That sounds daunting, but it comes down to a handful of reliable habits: check daily, water deeply in the morning, get ahead of the heat, and shade and mulch to buy yourself margin.

The plants that struggle in a SoCal summer are almost always the ones left on a winter routine while the world around them turned hot and dry. The ones that thrive belong to someone who adjusted — who watered more, watched the forecast, and read the daily signals of thirst and heat. It is attentiveness, far more than expertise, that carries a collection of potted plants through July and August.

Give them that attention through the dry months, and you'll be rewarded with a patio that stays lush and alive at the very time of year it's hardest to achieve — and plants that slide into the cooler, wetter fall healthy, established, and ready to rest.