Lawn mowing may cost you: $ 70 to have your lawn mown once, but as little as $60 if they do your mowing regularly, such as a fortnightly or monthly service $120 per hour more for a ride-on lawn mowing service For other garden services expect to pay from: • $30 for weed spraying • $50 for rubbish removal • $60 for hedging • $75 for slashing If you need more involved gardening work, such as landscaping you will need to call in a specialist.