Should I seed or sod my lawn in Virginia?

For most Virginia lawns, seed is the right choice when you can plant in the fall and wait a few months for a full lawn, and sod is worth its higher price when you need grass now, the ground is sloped, it is the wrong season for seed, or the grass you want is not sold as seed. Both need the same soil preparation and the same daily attention for the first few weeks.

Start with the grass, not the method

The grass you want often decides the question. Most Virginia lawns are tall fescue or a tall fescue and Kentucky bluegrass mix, and both are easy to grow from seed or buy as sod. Virginia's sod farms have long grown a mix of 90% turf-type tall fescue and 10% Kentucky bluegrass by weight.^[1]

Other grasses narrow your options:

• Hybrid bermudagrass: the vegetative hybrid bermudagrasses can only be planted as sprigs, plugs or sod.^[1] Common bermudagrass can be seeded.
• Zoysiagrass: sprigs, sod, or plugs are the primary methods of establishment, with sod being the most common form of vegetative establishment due to the slow rate of spread of this grass.^[1]
• St. Augustinegrass: St. Augustinegrass is planted as sod, plugs or sprigs,^[1] and only suits the warmest parts of the state.
• Fine-leaf fescues for shade: no sod is available for the fine-leaf fescues,^[1] so a shady lawn usually means seed.
• Pure Kentucky bluegrass: it is difficult to find sod that is 100% Kentucky bluegrass,^[1] though the seed is easy to buy.

For seeding dates by grass type, see the best time to overseed in Virginia.

Then look at the calendar

Seed has a narrow window. For tall fescue, bluegrass and the other cool-season grasses, late summer to mid-fall is the best time to establish cool-season turfgrass,^[3] and the secondary time for planting is spring.^[4] Spring seedlings have to survive their first summer with shallow roots, and fall seeding avoids summer annual weeds, like crabgrass, choking out the seedlings.^[8]

Warm-season grasses are ideally established in late spring to mid-summer,^[4] and warm-season grasses should not be planted in the fall unless the lawn is being sodded in early to mid-fall.^[3]

Sod is far less fussy: sod can be installed just about any time of year as long as the soil is not frozen and irrigation is available.^[2] If you are moving into a new house in May and want a lawn by July, sod is the realistic option.

What sod gives you for the money

Sod does things seed cannot: it creates an instant green lawn, gives immediate erosion control, eliminates dust and mud, and eliminates weed control during establishment.^[2] Sod is also well suited to steeply sloped areas,^[7] because a bank seeded in September can wash out in one storm.

Sod is also easier to keep alive in its first weeks. Sod is more forgiving in water requirement and frequency than seeding establishments and provides a turf that can handle limited foot traffic almost immediately.^[5] That matters if you have dogs or children who will be on the lawn the week it goes in.

What seed gives you

Price, mainly. Sod is more expensive than seed, and more difficult to obtain, transport and store.^[7] Seeding's advantages are lower initial costs and labor needs.^[6] For a rough sense of scale, EPA's 2020 figures, from RSMeans construction cost data, say hydroseeding bluegrass generally cost around $50 to $100 per thousand square feet,^[6] while sod including installation could range from $25 to $100 per square yard.^[7] There are 111.1 square yards in 1,000 square feet.^[2] Our guide to what it costs to seed a lawn in Virginia breaks down the materials.

Seed also gives you the widest choice of grasses, and it is light work. The cost is time: Tall fescue germinates in about 4 to 7 days, but most Kentucky bluegrass cultivars need 10 to 14 days and centipedegrass 14 to 28 days,^[1] and a seeded lawn takes the rest of the fall to thicken.

The work is similar either way

Neither method skips the soil work. For new plantings, tilling the soil to a 4- to 6-inch depth is desirable^[3] before seeding, and soil preparation for sod should be the same.^[5] Test the soil first: Many of Virginia's soils are very acid and probably require a supplemental lime application,^[3] and the time to work lime and starter fertilizer in is before anything is planted. If you will till or dig, contact Virginia 811 at least 3 working days in advance^[9] so buried lines are marked.

Watering is a commitment for both: newly sodded or seeded lawns require more frequent watering for the first three to four weeks.^[4] Sod adds two hard limits. Sod is perishable and should be installed within eight hours of harvest,^[2] and it is heavy: Dry sod weighs about 20 to 25 pounds per square yard, and wet sod 30 to 40 pounds.^[2]

A quick way to decide

• Choose seed for a fall project on level or gently sloped ground, a tight budget, a shady yard or a grass sold mainly as seed.
• Choose sod for a spring or summer start with cool-season grass, a slope or bare soil that is eroding, a lawn you need to use soon, or hybrid bermudagrass or zoysiagrass.
• Mix them where it makes sense: sod the slope and the strip along the driveway, and seed the flat back yard.

For the next steps, see how to lay sod, how often to water new grass seed and whether to hire a pro to seed your lawn.

Stop and call a pro if

• The ground slopes toward the house or holds water, so the grade has to change before anything is planted.
• The whole lawn has to be killed and stripped first, which means herbicides, heavy equipment or both.
• The area is too large to lay or seed and water in the time you have.
• Utility marks cross the area you need to till.

Browse more lawn and landscaping answers, compare sod and seeding services, or find lawn and landscaping businesses near Blacksburg. To have it done, describe your seeding or sod job once and local businesses can quote it.