Sparrow Silhouette Bird House Growing Accessories Sinclair Horticultural Grade Perlite is

Sinclair Horticultural Grade Perlite is porous so it helps retain water & nutrients in the soil for release to plants

avoiding east-facing sites as frosts followed by sunshine can damage the buds before they have time to thaw

preventing overwatering and ensuring ideal soil moisture

Ideal choice for rock gardens

non-toxic material with a golden colour (2-5mm particles)

Sparrow Silhouette Bird House Growing Accessories Sinclair Horticultural Grade Perlite isFSC certified wood Entrance hole This specifically designed nesting box is ideal for Sparrows. Hang the box in a quiet sheltered spot for best results. Featuring a key hole opening door on the side. 30 mm 1. 181 inch diameter entrance hole suitable for Sparrows.