Well, it depends where you want to grow your plant. Inside or outside?
If it is inside you need a plant that is happy to grow in low light levels - Spider plants easy to grow and resilient to neglect; Succulents are great and don't need too much attention or water, butterfly orchids, dead easy and will flower again. Ferns are good but need water.
Outside - again it depends where you want to put it. If on the roof it has to be very low growing - the prostrate rosemary would be excellent - you can eat it, it flowers (Bees love it) and is evergreen. But, as far as shrubs go here are a few more: Skimmia - evergreen, small flowers followed by red or white berries, Lavender, Potentilla - pretty flowers in various colours, Hebe, go for a dwarf variety - evergreen flowers pinks/purples, Cistus - lovely flowers. Pop into you local garden centre and have a browse.
Be sure to pot it into good compost with drainage, add slow release fertilizer, water it until it is established then you will find that most shrubs are fairly tough as long as they get some water occasionally.
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