Add spaces: Pierisisanexcitingperennialforthegardenpots.Itproducesbeautifulreddishleavesthatresembleflowers,andastheseasonschangeitaltersitsexpressionfromfullbloomtochangingleafcoloursandthedensegreenfoliageofwinter.

Answer: Pieris is an exciting perennial for the garden pots. It produces beautiful reddish leaves that resemble flowers, and as the seasons change it alters its expression from full bloom to changing leaf colours and the dense green foliage of winter.

Add spaces: BeforeyoucanopenaWCHfile,you'llneedtofigureoutwhatkindoffiletheWCHfileextensionrefersto.

Answer: Before you can open a WCH file, you'll need to figure out what kind of file the WCH file extension refers to.

Add spaces: Thisiseasilyachievedbyputtingequalproportionsofmaterialcontainingcarbon,suchasleavesandbushcuttings,andmaterialcontainingnitrogen,suchasgrasscuttingsandnettles,ontothecompostheap.

Answer:
This is easily achieved by putting equal proportions of material containing carbon, such as leaves and bush cuttings, and material containing nitrogen, such as grass cuttings and nettles, onto the compost heap.