Posted: 25/09/2014 at 14:19
In a garden of this size I would try not to go for a planting scheme which appears"busy" to the eye. Some simple guidelines:-
Have a few, say 3 or 4 very eye catching trees/shrubs in key positions. Some height in the garden is good. Think about the eventual size before you plant, especially if you need to get behind them when bigger.
Colour themes of pinks with mauves and white i.e. the "cool" colours; or the "hot" colours of yellow, reds, oranges are good. However blue always looks good with yellow and I am a sucker for orange and mauve. So think colour combinations, that generally compliment each other.
Plant in drifts of a single flower.Odd numbers of 3, 5, 7s. Planting randomly in a dotty pattern rarely works.Let drifts "bleed" into one another to get the transition from one to another. Colour "rythmn" works i.e repeat a colour from time to time, without spacing them exact distances apart. Think how nature works.
Think seasonally. Underplant with Spring bulbs now to get a flying start next year ( wait to November for tulips) How about groups of alliums?
Then think of you summer stars, followed by autumn colour.
Your patio/decking gives you the opportunity of adding some stunning planters,with bulbs and annuals, and winter effects.
Finally have a look at other gardens to give you some ideas.
As I can't see a greenhouse I am assuming you won't be propagating a lot yourself. This gives you the opportunity to go to the garden centres to see what looks good with what, and a what times, seek advice, and buy instant results.