Chrysojasminum odoratissimum aka Chrysojasminum Odoratissimum

Chrysojasminum odoratissimum is a woody shrub. It belongs to the olive family, Oleaceae. Sources also call it Jasminum odoratissimum. Common names include yellow jasmine and fragrant jasmine. Kew gives its native range as Madeira and the Canary Islands. It comes from a subtropical climate. Gardeners grow it for its sweet-scented blooms and climbing form.

This plant keeps its leaves year-round. It scrambles upward to form a shrubby climber. In gardens, it grows about 8–13 feet (2.5–4 metres) tall. It spreads about 1.6–3.3 feet (0.5–1 metre) wide. Plants take five to ten years to reach full size. The leaves are mid-green. Small groups of yellow, star-shaped blooms stand out against them. Each bloom is about one inch (0.025 metres) across. Flowers open from spring through autumn. Warmth can keep them blooming into winter. Black fruits, shaped like berries, may follow the blooms. Insects carry pollen between the flowers.

In Britain, the RHS suggests a conservatory or cool greenhouse. Give plants bright light through a filter. Or give full light, with shade from hot sun. For pots, use peat-free compost with a loam base. Soil must drain well but hold some moisture. Chalk, loam and sand all suit this plant. Listed soils range from acid through neutral to alkaline. Choose a site with shelter, facing south or west. Water less often in winter. Feed each month while the plant grows, using a potassium-rich feed. The RHS rates it H2: it cannot survive freezing. PFAF lists USDA zones 8–11 as a broader hardiness guide.

Its climbing form suits wall borders, patios and pots. The RHS also lists it for Mediterranean-style gardens. Thin dense growth once the blooms fade. Prune harder in early spring to spur fresh growth. Take semi-ripe cuttings in summer. Or layer stems in autumn to grow new plants. Watch for aphids, scale insects and mealybugs. Glasshouse red spider mites may attack plants grown under cover. Honey fungus may cause problems, though the RHS calls it rare.

The flowers yield essential oil for use in perfume. PFAF also notes their use to flavour or scent tea. That source gives the plant a low food-use rating. It lists no known uses in medicine and no known hazards. A lack of listed hazards does not prove safety for pets.