I have planted natives in clay soil and used plastic sleeves - how long before I remove it?

Thank you for contacting Yates. 

It is difficult to give out an exact time frame as every native is different.  A rule of thumb is to protect it till the plant has established with active growth. 

Try 'Yates Dynamic Lifter Liquid Concentrate' as a gentle fertiliser and soil improver. It's certified for use in organic gardens, and contains seaweed, blood&bone and fish meal to help developing new roots and restoring healthy growth. Click here for more info on this product: https://www.yates.com.au/product/garden-fertilisers/certified-organics/yates-dynamic-lifter-liquid