Home of the Griffith Quarry
Artificial Grass in Penryn, CA
Synthetic lawns cut around granite and oaks on foothill lots.
- Free in-person measuring and design
- Itemized written quote before work starts
- Drainage planned for Placer County hardpan soils

Artificial Grass Among the Granite
Artificial grass in Penryn has to fit around rock. Penryn, about five and a half miles northeast of Rocklin at roughly 627 feet, grew around the granite quarry Griffith Griffith opened in 1864. Penryn granite, with its mottled black-and-white look, is in the California State Capitol and the old U.S. Mint in San Francisco. On many local lots, that same granite shows up as boulders and shallow rock. We design turf areas around it.
Working with boulders
We cut artificial grass tight around natural boulders so the rock looks like it belongs, and adjust base depth where rock is near the surface. Small loose rock is removed so the base compacts evenly.
Foothill weather
Penryn sits above the valley floor, so it sees slightly more rain and cooler nights than Roseville. Water runs quickly off rock and slopes in winter. We grade so it moves through the base to a planned exit.
Small, owner-occupied community
Penryn had 1,150 residents in 2020, up from 831 in 2010, and 87.5% of occupied homes were owner-occupied. Most owners are looking for a modest green area near the house, not a whole lot of turf.
Palms and history
In the early 1890s about 1,000 California fan palms were planted along English Colony Road for Joel Parker Whitney's citrus colony, and many still stand. The old quarry is now Griffith Quarry Park, a 23-acre county park and California Historical Landmark No. 885.
Popular Penryn projects
- A lawn panel near the house framed by granite
- Dog areas that stay clean in winter
- Small putting greens
- Turf on level patio areas
Pricing
National published ranges put installed artificial grass at about $6 to $22 per square foot. Rock work and slopes add cost; your written estimate lists each item.
Wildlife
Foothill lots see deer and other wildlife. Turf does not attract grazing, and fastened edges keep animals from lifting it.
English Colony Road palms
The fan palms along English Colony Road are a reminder that Penryn's land has been landscaped and farmed for more than a century. On older parcels, we sometimes find old pipe, stumps and fill when we dig. We remove them so the base stays flat.
Timeline
Most Penryn projects take one to three days, longer when there is significant rock work.
A modest footprint
Most owners turf a few hundred square feet near the house, framed by granite, pavers or native planting. That keeps costs down and fits the foothill setting.
Call (916) 634-1558 or
for a Penryn estimate.What to Know in Penryn
- Granite town. Griffith Griffith opened a granite quarry at Penryn in late 1864; Penryn granite appears in the California State Capitol and the U.S. Mint in San Francisco.
- Quarry park. The quarry is now a 23-acre Placer County park, on the National Register since 1977 and California Historical Landmark No. 885.
- Growing, owner-occupied. Penryn grew from 831 residents in 2010 to 1,150 in 2020; 87.5% of occupied homes were owner-occupied.
- Foothill elevation. Penryn sits at about 627 feet, about 5.5 miles northeast of Rocklin.

Penryn Questions
Can artificial grass go around granite boulders?
Yes. We cut it tight around rock for a natural look and adjust base depth near shallow rock.
Will deer bother artificial grass?
No. Deer do not graze on turf, and fastened edges keep it in place.
How much of my lot should I turf?
Most Penryn owners turf a modest area near the house. We price a few sizes so you can compare.
Do you install in Penryn?
Yes. It is a short drive from Roseville and Rocklin.
How long does a rocky Penryn install take?
Usually one to three days; heavy rock work can add time.
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