Answer: The problem may be with your soil or with your watering habits. Plumbago does best in light, sandy soils with good drainage. The foliage may turn yellow due to manganese deficiency, but applying manganese sulfate will cure that. Plumbago should be pruned heavily to keep it neat and within bounds and to make it bushy to maximize the number of flowers. It produces its flowers on the current season's growth, so you can prune plumbago in late winter and not worry about cutting off flower buds. Hope this helps you correct the problem with your plumbago!
Q&A Library Searching Tips