cultivation of differenent tropical and exotic indoor palms and evergreen plants in glasshouse in westland, north holland,

dracaena homalomena howea forsteriana philodendron sansevieria fernwood veitchia merrillii agricultural agriculture botanical botany collection cultivation decoration evergreen exotic farming ficus flora floral foliage garden glasshouse green greenery greenhouse growing growth houseplant indoor plant industry leaf livistona monstera nature netherlands north holland nursery ornamental palm perennial pot tree tropical warm air westland yucca