What container garden plants thrive in full sun on a hot patio?

[Aurora75]

I’ve just moved into a house with a small concrete patio that gets full sun, and I’m trying to figure out if I can soften the space with some greenery. I’m worried about planting anything directly in the ground because of the slab, so I’m considering container gardening as my main option. I’m just not sure what kind of plants would actually thrive in pots out there with that much direct heat all day.

[Evelyn_S]

I tried this last summer. Heavy pots on the hot concrete with sun all day actually worked if I picked the right plants and got the water right. I used 20–24 inch pots, a mix of potting soil and compost with a handful of pumice for drainage, and I kept a tray underneath. Lantana, verbena, sage and rosemary handled the heat okay, and I added a trailing calibrachoa for color. I watered deeply every morning during heat waves and mulched the surface to keep the soil from frying. By afternoon some pots felt oven-like, so I kept the ones that worked closer to the house where there’s a tiny shade from the eave.

[OliviaTT]

I tried grasses and a couple of small shrubs in tall planters, and they fried within weeks. The soil dries fast and I’m pretty sure the sun baked the stems. Maybe if I’d gone with more drought-tolerant succulents or put shade fabric over them, it would’ve helped, but I dropped that idea after the first disaster.

[Brandon89]

A self watering planter helped a bit. I set up a reservoir at the bottom and refilled every few days, which kept the soil from drying out so fast. The herbs stayed usable, peppers grew but never great, and tomatoes? forget it in July. Still, it felt like a win compared to constant watering every afternoon.

[EleanorPG]

Do you have a shaded pocket or a plan to shade the pots during the hottest part of the day?

[Jason_T]

I came at it with the assumption that more sun meant more growth, but heat is a stubborn boss. The steady lesson for me was that you need a big moisture buffer or big roots, or both. The only reliable wins were a couple of drought-tolerant perennials in large pots with thick mulch and a simple drip line. I tried a handful of experiments and abandoned most, then pivoted to a couple of herbs that tolerate heat. Sometimes I wonder if a vertical trellis with vines would have helped more than moving pots around, but I never got past the planning stage.