Though Gov. Gavin Newsom has signed a bill banning the sale of most new gas powered tools by 2024, gardeners and landscapers say a $30 million state subsidy isn’t nearly enough to help small operators make the switch to electric. The state agency responsible for administering the subsidy estimates it has only enough to give each self-employed gardener a 50{6d6906d986cb38e604952ede6d65f3d49470e23f1a526661621333fa74363c48} coupon for one tool, far from the truckload of leaf blowers, lawn mowers, small chainsaws, brushcutters and trimmers most haul around. In fact, local governments have learned they need to offer more. In Southern California, a regional air quality district that has been running a similar incentive program since 2017 saw…