If you're looking for lawn feed that is both child and pet friendly. That is also an alternative to chemicals, then Marshalls Garden have the right products for you. 

Westland SafeLawn is perfect to create strong and healthy lawns while also preventing both weeds and moss. It is 100% natural and has added grass seed to thicken and fill in any patches. 

After only 7 days your lawn will start to become greener and healthier.