Once your containers have been filled with the right compost such as multipurpose, ericaceous, or a tub mix, within a short time of 4-6 weeks all the nutrients will be depleted. After this in order for the plants to flourish an additional feed is required at frequent intervals (once a week or fortnightly).
If plants are fed right at the right intervals they will reward you with plenty of blooms, bountiful fruits and vegetables, or lush leaves. Remember overfeeding can cause as much damage as underfeeding, as this can promote diseases and attacks by pests. It is always recommended to …