Thank you very much Martin – sounds like I may do well to stagger a planting through September and then next March for the N-fixers? Sheet mulching is likely all I can do to try and deal with the poisonous plants as I do not want to maintain them / let them continue to seed around the property.
Glad to hear that the voles may be on the way out too, there are a number of birds of prey and I hope they get their fill on our property!