Acacia podalyriifolia aka Pearl Wattle

Acacia podalyriifolia is an evergreen shrub or small tree. Common names include pearl acacia and Queensland silver wattle. It belongs to the pea family, Fabaceae. Its native range runs from southeast Queensland into northeast New South Wales. It grows in a subtropical climate. In the north, it grows on sandstone hills in open eucalyptus forest. Farther south, it grows on several kinds of rock.

In gardens, this tree reaches about 9–10 feet [2.7–3 metres] tall. Its spread can reach about 10 feet [3 metres]. The crown has a rounded shape, and foliage stays year-round. The sources give little species-level detail on leaves or bark. Yellow flowers add colour in late winter and early spring. Chicago Botanic Garden lists bloom from March to April. Plants For A Future gives a broader January-to-May season. The flowers have a light, sweet scent. They also draw butterflies to the garden.

Give this acacia full sun and soil that drains well. It favours sandy loam but accepts other good garden soils. Mildly acid or neutral soil suits it best. Avoid soil with too much lime. It can grow in a hot, dry border. It also accepts moist soil where drainage stays good. Chicago Botanic Garden lists USDA zones 8–11. Plants For A Future reports cold tolerance near 27°F [-3°C]. Outdoor growing in Britain is limited to the mildest areas. Even there, harsh winters may kill growth back to ground level.

This small tree suits sunny borders and woodland edges. A spot beside a south- or west-facing wall is another option. Its flowers and evergreen form give it value as an ornamental. Hard pruning after flowering can help promote next year's bloom. Its roots help hold soil on steep or fragile slopes. It can also fix nitrogen through a partnership with soil bacteria. The flowers yield yellow dye, while the seed pods yield green dye.

Plants For A Future records cooked flowers as edible. Their pollen-rich blooms can go into fritters. That source gives the plant a low food-use rating. It lists no known hazards and no known medicinal uses. This does not establish safety for pets or every plant part. The supplied evidence names no specific pests or diseases.