Although Campsis likes fertilizer, be careful not to apply too much, because excessive fertilizer can easily burn the root system.Therefore, if you fertilize too much, you must deal with it as soon as possible.The plant can be watered with clean water to dilute the fertilizer and let the fertilizer liquid flow out.It can also be directly repotted and replaced with new soil for re-maintenance.If rotten roots are found when repotting, they should be cut off and disinfected, and planted again, so that they can recover soon.
The time to fertilize Campsis grandiflora should be selected in spring and autumn, which are the peak seasons of its growth, and the amount of fertilizer needed is relatively large, so it is necessary to supplement fertilizer in time to ensure sufficient nutrients to maintain the growth demand.In addition, fertilizer should be applied once before flowering.The flowering period is between March and May, the organic fertilizer is applied once after the decomposition, and the phosphorus and potassium fertilizers are also applied during the flowering period to promote the flowers to bloom more brightly and for a longer time.
In the spring and autumn growing season, compound fertilizer should be applied once every 15 to 20 days, and different fertilizers should be applied according to its growth needs.Can be directly apply around that root system, and is diluted by a prop amount of watering after being apply, so as to promote faster absorption.During the flowering period, phosphorus and potassium fertilizers should be applied every 20 days or so, and it is better to dilute them first and then apply them to avoid fertilizer damage.
