4 Modern Garden Ideas for Des Moines, IA | Clean-Line Landscape Design in Zone 5b

A two-story contemporary home in white stucco and warm vertical wood cladding, with a full wall of glass and a wide poured-concrete walkway running straight to the door. The landscape does its work in two disciplined ribbons flanking the walk: airy ornamental grasses catching the evening light, purple salvia and lavender-toned perennials weaving through them, clipped boxwood spheres for winter structure, and low path lights marking the rhythm. A mature shade tree anchors one side of the lawn — proof that modern doesn't mean stripping a lot bare. The grasses turn wheat-gold in October and hold through snow, so the entry reads composed twelve months a year.

A flat-roofed mid-century ranch in gray stucco with a brick accent column, fronted by a lawn-free gravel courtyard organized into long terraced bands by corten steel edging. Rosette-form plants punctuate the pea gravel in a deliberate grid, with clumps of ornamental grass, boulders, and a dark steel cylinder sculpture breaking the rhythm, all crossed by clean concrete walkway bands. In Des Moines this look needs one honest edit: the tender agaves that inspire it get swapped for Zone 5b troopers — hardy yucca, giant hens-and-chicks, sedums, and native prickly pear — which hold the same sculptural geometry through -20°F winters while the gravel field eliminates mowing and irrigation entirely.

Behind a modern farmhouse with black-trimmed windows, a large square concrete terrace floats in the lawn, furnished with black-steel-frame sofas around a round concrete gas fire bowl. String lights sweep overhead from dark posts, and drifts of ornamental grasses soften the terrace corners while a black metal fence keeps the view open to flat Iowa farmland rolling to the horizon. It's the most buildable design on this page — one concrete pad, one fire feature, one planting texture — and the fire bowl plus string lights stretch the outdoor season from April frost to November, which in Des Moines is the whole game.

A white two-story contemporary with a stacked flat roofline and walls of black-framed glass, glowing at dusk over a rectangular pool with underwater lighting. The pool sits in a pale concrete deck, and instead of hedges, the perimeter is planted almost entirely with uplit ornamental grasses whose seed heads catch the light, plus low lavender-toned perennials along the far edge. A lounge zone with a linear fire table sits between the glass doors and the water. It's a serious investment in a four-month swim season — which is why the grass-and-lighting perimeter matters: it makes the space a stunning view from inside the glass for the eight months the pool sleeps.