help with keyword and location research

[grasshoppersean]

i have been updating the meta keywords on my jamoola website.
i am not sure if i am in the right section but here it goes.

1. i am in the garden maintenance business and the services i offer and keywords i use are lawn treatments, lawn mowing, hedge trimming, turfing, weed control, garden maintenance, garden services, fencing, gardener, gardeners. lawn care
i keep coming back to these keywords and cant think of any other, any suggestions.

2. when i put the keywords in the meta keyword section on my website should i add a location to some of the keyword services. ie. newquay garden services, newquay garden maintenance, st agnes lawn care.

sorry if this is not making much sense, my knowledge is a bit basic.