Event 2023 Fall Plant Sale Autumn is here and that means it’s peak planting season! Warm days and cool nights make this the perfect time to refresh your garden. Gardens Find everything you need to update your garden and make the most of peak planting season. Fill your wagons and carts with a wide selection of regionally hardy plants, including: California natives Cactus and succulents Perennials Trees Shrubs Open to the public. Free with general admission. Advance tickets and Member reservations required. Small wagons and boxes welcome for transporting your plants and trees.