Tui Black Woodchips 40 Litre SKU: 182371 MODEL: TWOO40 Error. try again later You've successfully joined the club $ 11 .98 each Available on orders $50 to $1500. More info × Mitre 10 MAvailable at Mitre 10 MEGA stores. Variants Tui Black Woodchips suppresses weed growth, conserves soil moisture and creates a uniform look throughout your garden to keep it looking its best. Features and benefits Natural New Zealand woodchips with biodegradable vegetable dye. Suppresses weed growth and conserves soil moisture. Use in garden beds.