Some San Gabriel Valley residents may be eligible to receive $250 worth of drought-resistant plants — for free. The Upper San Gabriel Valley Municipal Water District launched the region’s first residential plant voucher program last week; applications are now open, according to a press release. The program is intended to encourage people to integrate drought-tolerant plants into their landscape instead of grass lawns and other water-thirsty plant materials, according to the upper district website. The nearly 1 million people in the upper district service area use more than 78 billion gallons of water annually, according to the release.