Posted: 15/10/2013 at 11:13
BL and Macthecat are right. No 'one size' fits all. I recently made raised beds for ornamentals which use treated timber and are lined. The same principle applies to a container but the drainage, as BL says, needs to be in place in the base. As to size, for any climber, the size is probably the most important thing. If you don't intend moving it around, you'd have one as big as possible as it will benefit the plants. I'd say BL is right again with sizing- anything smaller than around 40/50 cm is too small for most climbers to get a good chance of growing well. If you look at Versailles containers- originating in the orangeries at Versailles- you'll see that they are quite decorative with little ball finials at the corners. It makes them more pleasing in a garden. I'd suggest that something decorative - a panel of some sort, similar to the panels in lead containers - would be a worthwhile addition. Some built in feet to raise them would be a must to avoid waterlogging.