Home Depot Hydrangea Fertilizer. Compost, bark or leaves serve as an organic fertilizer that. Endless summer® hydrangea flowering shrub is ideal for landscape containers and cut flowers.
Change the vase water every other day. This plant works well in urban settings and tolerates poor air quality well. After your endless summer hydrangeas first bloom in late spring or early summer, you can push them to send up a second flush of flowers with another dose of fertilizer.
Hydrangea fertilizers or soil additives containing sulfur lower soil ph, making it more acidic, and shifting flowers to blue and purple shades.
This shrub blooms on new and old wood, so the shrub will still bloom after very harsh winters, even in zone 3! Add a packet of flower preservative to the water if you have it or, if you want to go all out, dip each stem in boiling water for 30 seconds and then in alum powder (available in the spice aisle at grocery stores) before putting them in your vase. After your endless summer hydrangeas first bloom in late spring or early summer, you can push them to send up a second flush of flowers with another dose of fertilizer. Amazon’s choice for blue hydrangea fertilizer.
