Seeds are displayed at a garden center Tuesday, April 14, 2020, in Nitro, W. Va. Customers looking to start their home gardens during the coronavirus pandemic are gobbling up seeds at garden centers and creating huge backlogs on company websites.

HARRISBURG, Pa. (AP) — With outdoor planting season here for parts of Pennsylvania, Republican state lawmakers are beginning to press legislation to force Gov. Tom Wolf's administration to allow garden centers to open even while the state is shut down to contain the spread of the coronavirus.

On Friday, Wolf announced that online car sales and expanded liquor curbside pickup would begin Monday and construction could begin following CDC guidelines on May 1.

Some garden centers remain shuttered under Wolf's statewide March 19 order for "non-life-sustaining" businesses to close. But gardeners are beginning planting outdoors for the summer growing season, and relaxing that order could be weeks away for much of Pennsylvania.

Meanwhile, plants, seedlings and other garden supplies are being sold by big-box stores or competitors that may sell hardware, farm supplies, building materials or other qualifying goods that allow them to stay open.

On Friday, four Republican state senators said they will introduce legislation to force Wolf's administration to issue waivers from the orders so that garden centers can reopen while adhering to social distancing and other guidelines issued by the U.S. Centers for Disease Control to protect employees and customers.

"With the seasons quickly changing, we can no longer afford to wait to have these important businesses approved for waivers to open," Sen. Ryan Aument, R-Lancaster, said in a statement. "The summer and fall harvests may be weeks and months away, but the seeds needed to grow into what will eventually become hundreds of millions of pounds of produce for our communities need to be planted soon."

In other coronavirus-related developments: