The fall checklist that decides how your yard looks next May

Spring gets all the attention. But in this climate almost everything that makes a yard look good in May is decided in September and October.

Here’s what we do, in order.

#1. Aerate and overseed — early, not late

Fall is a better time to seed here than spring. The soil is still warm, nights are cooling, weed pressure has dropped off, and new grass gets two mild months to establish before dormancy.

Core aerate first — pull plugs, don’t spike. Spikes compact the sides of the hole and make the problem worse. Then overseed into the holes and keep it damp until germination.

Timing matters more than anything else here. Seed needs roughly six weeks of growing weather before the first hard freeze. In the Carson Valley that means getting it down by mid-September. After early October you’re feeding birds.

#2. Fertilize for roots, not for color

The last feed of the year is the most important one, and it isn’t about green-up. A fall application goes into root development and carbohydrate storage — the reserves the lawn lives on all winter and uses to come out of dormancy fast.

Skip it and you get a lawn that greens up two or three weeks later than the neighbors in spring, for reasons nobody can see.

#3. Get the leaves off the lawn

Not for tidiness. A wet mat of leaves on turf blocks light and traps moisture against the crown, and you find the dead patches in April.

Light leaf cover can be mulched straight in with a mower — it’s free organic matter. Heavy cover needs removing.

#4. Blow out the irrigation. Do not skip this.

This is the one that costs real money to get wrong.

Water left in lines freezes, expands, and splits pipe, valves and backflow devices. The damage is usually below grade, so you don’t find it until spring start-up, and by then you’re paying for excavation as well as parts.

Blowing out a system properly means compressed air at the right volume and low pressure — high pressure with low volume doesn’t clear the lines and can damage seals and heads. It’s genuinely worth having done rather than borrowing a pancake compressor.

#5. Cut back — but know what not to cut

Not everything should be cut in fall.

• Cut back: perennials that have gone to mush, anything diseased, dead annuals
• Leave until spring: ornamental grasses (they hold winter interest and the crown insulates itself), and most spring-flowering shrubs, which set next year’s buds on old wood

Pruning a spring bloomer in fall is how people end up with a lilac that never flowers and no idea why.

#6. Deep-water trees before the ground freezes

The most overlooked job on the list. Evergreens especially keep losing moisture through their needles all winter, and frozen ground means they can’t replace it. That’s what winter burn is — the brown, scorched-looking foliage people notice in February and blame on cold.

Give trees a long, slow soak at the drip line after the leaves drop but before the ground freezes. It’s one afternoon and it makes a visible difference by spring.

#Roughly when

Those windows shift a week or two with elevation and with the year. Watch the forecast rather than the calendar.

We do all of this as a fall package across Gardnerville, Minden, Carson City and Reno — or any single piece of it. Book the irrigation blow-out early; that calendar fills up fast once the first cold night hits. Get in touch.