About
Hoya carnosa 'Compacta Marginalis' is a compact cultivar of Hoya grown for its waxy foliage and clusters of star-shaped, scented flowers. It belongs to the Apocynaceae family and sits within the Hoya genus. Plants typically produce umbels of flowers in summer. In the UK those blooms appear from June to September.
About the genus
Hoya is a genus of over 500 species of plants in the dogbane family, Apocynaceae, commonly known as waxflowers. Plants in the genus Hoya are mostly epiphytic or lithophytic vines, rarely subshrubs, with leathery, fleshy or succulent leaves, shortly tube-shaped or bell-shaped flowers with five horizontally spreading lobes, the flowers in umbels or racemes, and spindle-shaped or cylindrical to oval follicles containing flattened egg-shaped to oblong seeds.
Wikipedia contributors, "Hoya (plant)", CC BY-SA 4.0 — Hoya (plant)
In the garden
Hoya carnosa 'Compacta Marginalis' is a cultivated form of Hoya in the Apocynaceae, long grown for its glossy, succulent leaves and multi-flowered umbels. The species is well established in cultivation and this cultivar is commonly kept as a container houseplant where its trailing or climbing shoots can be displayed. Give it a bright, frost-free spot and a free-draining compost mix; many growers use a looser potting medium to avoid waterlogging around the roots. Water moderately in active growth, allowing the surface to dry a little between waterings, and reduce moisture in cooler months. A light feed during the growing season supports flowering. It suits hanging baskets, wall-mounted pots or training over a small support in a conservatory or bright room. Expect clusters of scented, star-like flowers in good conditions; flowering in the UK occurs from June to September. Allowing a short drier spell between waterings often helps the plant produce blooms in its summer season.