Waipahihi Botanical Reserve is a 34-hectare botanical garden at the corner of Hyde Avenue and Shepherd Road in Taupō. It has a 4.6 rating from 576 Google reviews. Its website says it is open every day until dusk, was developed since 1966 largely by volunteers, and has well over 2,000 rhododendrons, camellias and azaleas among native forest, plus a Floral Walk, native kauri and a 2km ring road with views of Taupō, the lake and Mount Tauhara. The best flowering is in September, October and November. There are tables and seats for picnics, a children's play area and spots for weddings.
Botanical gardens reward a slow visit. Check what is in season, since displays peak at certain times, and look for plant labels and themed tracks. Wear comfortable shoes, bring water and a hat, and allow time to sit. Spring brings the biggest colour but also crowds on fine weekends, so weekday mornings are calmer. Volunteers often run gardens like this, so a donation or a chat with them is welcome, and keeping to paths protects the plantings.
For spring flowers, views and a picnic in Taupō, Waipahihi Botanical Reserve is a lovely place to wander.