How To Keep Nasturtiums Blooming. In summer nasturtiums may stop blooming if they become heat-stressed. Nasturtiums will spill beautifully over walls and onto pavers when used as edging plants.
In fact nasturtium plants are one of those specimens that thrive on neglect. Feed them regularly with liquid fertilizer to ensure plenty of blooms through the summer. However if you want to keep your plants blooming vigorously throughout the growing season removing dead and faded flowers will help.
27012021 Deadheading removing spent blooms is usually not necessary unless a plant has been stressed and is holding on to the old blooms.
16062021 Annuals dont have deep root systems. Their flavor may become more intense too. Do not fertilize them. Even drought-tolerant annuals will bloom better if they get regular watering.