Raleigh, North Carolina

Three things. Shade, first: tall fescue will hold on under high oak canopy but it thins, and there is no grass variety that fixes deep shade under a mature oak. Sometimes the honest answer is a bed, a ground cover or mulch rather than another season of reseeding a strip that will never fill in. Root competition, second: those trees pull moisture and nutrients out of the top layer of soil across a radius far wider than the branch spread, so turf and shallow-rooted plants are competing with something that always wins. Leaf load, third — a mature oak drops for weeks in the fall, and wet oak leaf packed on fescue going into winter kills it.

Longer than most people plan for. Willow oaks and pin oaks are among the last trees in the neighborhood to finish, and they hold and release leaf in waves that can stretch from the first cold snap through the end of the year. A single cleanup scheduled in November catches part of it and leaves the rest to fall onto a clean yard the following week.

That has practical consequences on a shaded Raleigh lot. Fescue is still doing useful growing into the fall, so leaf sitting on it during that window costs the lawn the light it needs going into winter. Leaf also collects in the places nobody looks: in gutter valleys, against a fence line, in the corner between a deck and the house, and on the shaded half of a driveway where it leaves a brown tannin stain on the concrete after it gets wet.

Because Raleigh's older housing stock has surfaces that will not take the pressure a new driveway shrugs off. Mortar joints on a house that has stood for eighty years erode under a narrow tip, and repointing costs a multiple of what the wash did. Poured concrete walks from mid-century have been through decades of wet-dry and freeze cycles, and the top surface can be soft enough to etch permanently in a single pass.

Add canopy to that and you get the other half of the problem: shaded brick, shaded walks and north-facing siding grow black and green organic film that comes back quickly if it is only knocked off mechanically instead of treated.

Mowing on a set route, leaf work through a long autumn, bed renovation on lots where the planting is decades old, and washing on shaded brick, concrete and siding. Deck and fence work happens most often in winter, when the ground is workable and there is no turf underfoot to protect.

Lighting is worth mentioning separately in this part of town, because the mature canopy that causes so many of the problems above is also the best thing on the property to light. A couple of uplights into a full-grown willow oak does more for an older Raleigh house at night than a row of path fixtures.