Nice list of tips for disabled gardeners. It can be hard to garden if you are disabled or a little older and can be more tiring and less easy to bend and stoop. Carry on gardening has a list of tips to make it easier and hopefully allow you to be able to still do some gardening.
Tips on garden design for all disabled gardeners
http://www.carryongardening.org.uk/tips-on-garden-design-for-all-disabled-gardeners.aspx