California lawmakers approved a bill decriminalizing the possession and personal use of numerous psychedelics, including "magic mushrooms," on Thursday.

Senate Bill 58, which passed by a 43-15 vote in the state Assembly on Wednesday and a 21-14 vote in the Senate on Thursday, now heads to Gov. Gavin Newsom who will decide the fate of the measure.

If signed into law, the bill would remove the criminal penalties for the possession and use of psilocybin and psilocin, the active ingredients in psychedelic mushrooms, mescaline (excluding peyote) and dimethyltryptamine, or DMT.

The bill does penalize possession of the psychedelics on school grounds, or possession by, or transferring to, people under 21 years of age.

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The pro-psychedelic measure would also require the California Health and Human Services Agency to study the therapeutic use of psychedelics and submit a report to the Legislature with recommendations, the bill says.

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California Assembly Republican Leader James Gallagher strongly opposed the bill by arguing that legalizing psychedelics will worsen the crime and homelessness ravaging the Golden State.

"Crime and homelessness are out of control in California. If Democrats don’t think this will make things worse, they’re hallucinating - no mushrooms needed," Gallagher said in a statement to Fox News Digital.

Democrat State Assemblyman Scott Wiener, who introduced the bill, argued that veterans and first responders struggling with PTSD, depression, and addiction "deserve access to these promising plant medicines." 

Wiener argued that psychedelics are not addictive and that the U.S. needs to stop criminalizing people who use them.

"We know these substances are not addictive, and they show tremendous promise in treating many of the most intractable conditions driving our nation’s mental health crisis," Wiener said in a news release. "It’s time to stop criminalizing people who use psychedelics for healing or personal well-being."

Newsom has until Oct. 14 to approve or veto the bill. If signed, the bill would go into effect on Jan. 1, 2025.

A popular botanical garden in Pennsylvania announced it would be temporarily closing its doors after escaped convicted murderer Danelo Cavalcante was possibly spotted in the area on Thursday.

Longwood Gardens, located in Chester County, announced in a banner at the top of its website that the gardens are closed "until further notice" as the manhunt continues for Cavalcante, who is in the United States illegally.

The garden apologized for the inconvenience, but said that its top priority is the "health and safety of our guests and staff." Purchased tickets were also automatically refunded.

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The closure of the more than 1,000 acres of manicured gardens and woodlands comes as the search for Cavalcante heads into its eighth day.

Since his escape from the Chester County Prison on Aug. 31, there have been numerous reported sightings that police believe could be Cavalcante, state police Lt. Col. George Bivens said in a news conference.

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Surveillance footage released by the prison showed that Cavalcante, a 34-year-old from Brazil, escaped the building by crab walking up a wall, climbing over razor wire and jumping from a roof.

Another inmate attempted to escape from the same prison under similar circumstances in May, but was caught within five minutes by a tower officer.

Last month, Cavalcante was convicted in the 2021 murder of his ex-girlfriend and sentenced to life in prison.

The U.S. Marshals Service said he's also wanted for a homicide in Brazil, noting that he has a "violent history" on the agency's wanted poster.

The Chester County District Attorney's office described him as an "extremely dangerous man."

Fox News' Adam Sabes contributed to this report.