The Prevalence of Invasive Ornamental Plants at Garden Shops at Guiguinto, Bulacan, Philippines

Abstract

This study examined the prevalence of invasive plant species sold as ornamental plants in garden shops in Sta. Cruz, Guiguinto, Bulacan, addressing the lack of local data on how ornamental plant trade contributes to biological invasions. The research aimed to identify which invasive species are being sold, assess their marketability, and evaluate sellers' awareness of their ecological impacts. A descriptive research design was used, employing surveys and structured interviews with selected garden shop owners to gather data on the availability, economic value, and perceived demand of invasive ornamental plants. Findings revealed that only a limited number of garden shops sold invasive species, with Lantana camara, Thunbergia grandiflora, and Impatiens balsamina identified as the most frequently available. Most sellers were unaware of the invasive nature of these plants and continued selling them due to customer preference, affordability, and aesthetic appeal. The study concludes that, despite their ecological risks, invasive species remain present in the ornamental plant market due to low awareness and high aesthetic demand. These results highlight the need for stronger environmental education, improved regulation, and promotion of sustainable plant choices. The findings serve as baseline information for policymakers, environmental managers, and local stakeholders to guide future invasive species management and ornamental plant trade practices in the municipality.