This is the 15731st most frequent Russian word.
приусадебных
"Приусадебных" refers to something related to a household plot or area adjacent to a house.
Here, 'приусадебных' modifies 'клумб и садов,' referring to flower beds and gardens situated in or associated with the area adjacent to a homestead.
Она увлеклась созданием приусадебных клумб и садов.
She became interested in creating garden beds and gardens in a homestead.
In this context, 'приусадебных' describes 'участков,' indicating plots of land associated with private homestead areas.
Приусадебных участков в деревне становилось все больше.
The number of homestead plots in the village was steadily increasing.
The word 'приусадебных' qualifies 'территорий,' expressing spaces related to or part of homestead lands.