How to visually expand a small garden?
Using colour you can influence a size of your garden. If your plot is small try to avoid saturated colours or seemingly dark colours, as for example joining red and yellow (keeping in mind an influence of the surroundings). Avoid gaudy colours; especially, in further parts of a garden: it is better to replace close colours by unsaturated colours, as well as blue and green, which will be subconsciously associated with an aerial perspective.
What is more, in a small garden you should avoid straight lines and use irregular meandering paths.
A way of combining plants together also has an influence on perception of your garden. Graduating heights of plants is not only profitable for a composition (visual enlargement of a garden, a possibility to present a great number of specimens) but also for the plants themselves (better access to the source of light). High plants should be always behind short plants.
Dominants used in a composition are of special importance in a small garden. You should not use distinctive components in a further part of a garden.
Do not plant species of intensive, warm colouring at the end of plot; avoid using flowerbeds there. Do not “end” your composition by means of a row of thujas which will delimit a plot and shorten it visually.
Make sure that your garden is interesting. Try to imagine you are a person who is there for the first time. Think about things that would arouse your interest. As the first impression is the most important one, the most interesting components should be located near the house. Plantings near the path or mini-fountain that draw attention will cause your guests to “visit” your garden longer, and thanks to that it will be perceived as bigger than in reality.