To best experience the itinerary, renting a car is recommended. The average rental cost in Rosemead for a standard car is $35-45/day. Taking a cab works as well, but it will be a little more expensive with minimal stops.
If you have additional time, visit the Los Angeles Arboretum and Botanic Garden, which features a variety of plant collections from around the world. Exclude Chantry Flats hiking trail if your trip during the hot summer days. Rather, visit the Huntington Library, Museum, and Botanical gardens instead. Additionally, explore the Farmer's Market on Sunday behind the Rosemead Community Recreation Center for locally grown produce and craft items.