Posted: 18/05/2013 at 13:53
There is a form of fungus used, mycorrhzae , it comes in a coarse powder form, it is usually used for trees and more permanaent planting than annuals or small plug plants would suggest. Plugs will grow on well if kept well watered and fed, not all plants develop large root systems, especially annuals, as they only need to last a short time. Larger perennial plants will develop larger roots ans they grow and mature. f
Fuschia plants vary in their rate of growth, depending whether they are hardy and this will last for a long time, and can be planted outdoors when hardened off - these may well benefit from mycorrhzae, mnay others are grown in this country as annuals for hanging baskets and other summer displays. Normal watering and fertilsing, with for example a seeweed fertiliser, will encourage good strong growth for their season. If you want to grow standards you willl need to do special pruning for that, there are web sites and books devoted to that art.