One of the things which is of concern to the Friends of the Queslett Nature Reserve and the Council Parks department is well intentioned users of the QNR will sometimes introduce none native plants to the reserve.
It is the Police of the Reserve to where possible only to plant native species. (Plants by and large which are natural to this country or in some cases have been here for over 250 years.
Many none native species of plants can cause a lot of problems to native species and are better not being in the reserve.
If in doubt before planting anything in the reserve please check with the Parks department or the FOQNR.