If you are planning on removing plants from your garden you should ensure that this has been made clear to your buyers. Garden plants often are part of the sales agreement, you must therefore give your buyer written warning of your intention to take any plants from the garden prior to sale.
For large plants with heavy pots consider repotting into large plastic pots for the move, this can be done well in advance of your move. Depending on the season when you move you may be able to prune your plant to make it more manageable. The best time for moving plants is often early spring or late autumn when most are dormant. They tend to adapt more quickly to their new surroundings during this period.
As heavy garden plant pots, troughs and containers are not usually moved very often, check them for frost and other damage before moving day.
If you are uprooting outdoor plants it is important to dig as far around the plant as you can, to keep the root structure intact. Cover the roots in soil or other organic matter and transfer to a pot or wrap them in a layer of sheeting, followed by protective wrap.
Long stems or branches can be gently tied together with canes used for extra support.
Unpack and check your plants as soon as you can after arrival and let them acclimatise to their new surroundings.