Bill was introduced in Sep/25, but I only got a whiff of it in the last couple of weeks
See House Bill HB1878: https://fastdemocracy.com/bill-search/pa/2025-2026/bills/PAB00038963/
Are there any other states/countries taking similar initiatives?
Summary:
Pennsylvania homeowners deserve the right to choose native plant species they desire for landscaping around their homes. However, work is needed to remove bottlenecks for homeowners to select native vegetation for their desired landscaping.
This legislation will prevent homeowners associations (HOAs) from unreasonably prohibiting the use of native plants for landscaping on private property. This ensures homeowners residing within an HOA the same ability to choose native landscaping as other homeowners.
Native plants provide many beneficial functions that many homeowners desire. These include being aesthetically pleasing and providing habitat for pollinators while being adapted to the site and typically requiring lower maintenance than non-native plants. [...]
OP, this was introduced September 25, 2025 (you mention this), sponsored by 14 of the Pennsylvania House's 203 members (all Democratic in a split House), and its only action so far after introduction was to be referred to the Housing & Community Development Committee (read: nothing).
It's not dead or anything, but it's made no progress whatsoever in seven months, and fhe next session starts January 2027. This bill categorically is not evidence that it's "becoming law across America".
Thanks for the additional context