Deutzia pulchra occurs in the Philippines and Taiwan, Province of China. This species naturally thrives in ravines, thickets, and exposed ridges in the mossy forests at 100 to 2,730 m above sea level. It has a calculated extent of occurrence (EOO) of 168,340.527 km² based on currently available information. Although its population size is currently not known due to lack of surveys and documentations made, a continuous decline is expected due to habitat threatening effects of commodity-driven deforestation, logging activities, shifting agriculture and urbanisation. However, despite of these threats affecting the population and natural habitat quality, it is assessed globally as Least Concern (LC) given its numerous occurrences, very wide distribution and expected abundance.

Deutzia pulchra is native to the Philippines and Taiwan, Province of China. The species is found in ravines, thickets, and exposed ridges in the mossy forests of Aklan, Antique, Aurora, Benguet, Ifugao, Mountain Province, Nueva Ecija, Pampanga and Zambales, in the Philippines as well as in Hualien, Hsinchu, Nantou, Pingtung and Taitung, in Taiwan, Province of China. It usually grows at an elevation of 100 to 2,730 m above sea level (Merrill 1923, GBIF 2022). It has an extent of occurrence (EOO) of 168,340.527 km².

There is no information on the population size of the species. However, a decline is suspected due to continuous loss of tree cover within its distribution range.

Deutzia pulchra is a small to large tree species with height ranging from one to 15 m. It can be naturally found in ravines, thickets, and exposed ridges in the mossy forests at 100 to 2,730 m above sea level (Merrill 1923, GBIF 2022). There is no information on the phenology of the species.

Commodity-driven deforestation, logging activities, shifting agriculture and urbanisation serve as major threats to the quality of habitat of Deutzia pulchra, causing continuous loss of tree cover in the provinces of occurrence (approximately 43,370 hectares since 2001 to 2020 based on analysed data from Global Forest Watch; GFW 2022). Aside from these anthropogenic disturbances, Puccinia deutziae, a rust fungus on Deutzia pulchra was recorded in Taiwan, Province of China, causing hypertrophy on stems and petioles, lesions on the leaves, and spermogonia and aecia on leaf surface (Shen et al. 2016).

Deutzia pulchra is a voucher specimen for anticancer and anti-AIDS screening and also used for fuel (GBIF 2022). Additionally, it is an ornamental species.

The species is not included in the Philippine Red List (DENR-BMB 2017). The population of the species is protected in situ because of its presence in declared protected areas (PAs) such as Mt. Data National Park, Mt Pulag National Park, Marcos Highway Watershed Forest Reserve and Aurora Memorial National Park. It is also recorded in Central Panay mountains, a key biodiversity area. In addition, it is known in at least 40 botanic gardens globally (BGCI 2022). The species has been assessed as Least Concern in Taiwan, Province of China (Editorial Committee of the Red List of Taiwan Plants 2017). Further inventory and research are needed to estimate the total remaining population size in the wild. This will help in creating a relevant conservation action plan.