Planting in micro-gardens is not easy. Selection of varieties has to be careful to prevent the design becoming 'busy' and detracting from any hard landscaping. Most planting exoerts beleive that planting in small spaces should be restricted to just two or three types of plant, with one of those accounting for about 60% of the planting.
Planting can be carried out at any time of the year as long as the plants have been grown in containers. It is best to complete planting in one go if possible so that the plants will all mature at the same rate.
An example of good minimalistic planting is when strong shapes are combined, the plants are generally evergreen and there are highlights of colour to contrast against these evergreens. For example the strong rounded shapes of box, Buxus sempervirens, could be contrasted against the willowy movement of the grass Stipa. The Box would account for 60% of the planting and the Stipa 30%. It bring this to life, bright summer annuals such as Calendula could be planted through the skeleton planting to give highlight and tension.