Add punctuation: These popular springflowering plants MayJune love nutrientrich calcareous but humusladen garden soils which are not too tightly rooted by rival plants
A: These popular spring-flowering plants (May/June) love nutrient-rich, calcareous but humus-laden garden soils which are not too tightly rooted by rival plants.

Add punctuation: The problem is that the suggestions can be overcoming to a shy networker
A: The problem is that the suggestions can be overcoming to a shy networker.

Add punctuation: 81 Other base metals cermets articles thereof
A:
81 Other base metals; cermets; articles thereof