One of the most usual reason why an Endless Summer hydrangea may not flower is due to incorrect plant food usage . hydrangea have specific nutrient requirements , and using the haywire fertilizer can stymy their power to produce blossom . The key nutrient for blooming is phosphorous , which is represented by the middle number in the NPK ratio on fertiliser packaging . It is important to pick out a plant food that has a higher phosphoric contentedness than nitrogen , as too much nitrogen can boost foliage increment at the expense of efflorescence .

I have get across this issue myself in my own garden . I had been using a general - purpose fertiliser that had a higher nitrogen content , intend it would upgrade good for you increment in my hydrangeas . However , I was disappointed when my Endless Summer hydrangea failed to produce any bloom . After doing some research , I learned that I needed to shift to a fertiliser with a high phosphorous depicted object . Once I made the switch , I noticed a significant melioration in the blooming of my hydrangeas .

Another common mistake that can prevent Endless Summer hydrangeas from blooming is unconventional pruning . Pruning at the wrong time can remove the blossom bud that have formed for the upcoming time of year . Endless Summer hydrangeas flower on both old and newfangled wood , so it is important to infer the specific pruning requirements for this variety .

To avoid crop at the wrong time , it is honorable to wait until after the plant has finished blooming in the summer before doing any pruning . This take into account the hydrangea to set efflorescence bud for the next year . If you rationalise in the late summertime or dip , you may be take the buds that would have produced blossom in the next time of year .

In my experience , I once made the fault of cut back my Endless Summer hydrangea in early bound before they had a chance to bloom . I was eager to tidy up my garden and did n’t realize that I was removing the potential blossom . As a event , that twelvemonth my hydrangea did not make any blooms . I pick up from this mistake and now make certain to prune my hydrangea at the appropriate time to ensure a beautiful display of flower .

In summation to these common causes , there are a few other factors that can bear on the blooming of Endless Summer hydrangeas . One cistron is deficient sun . hydrangea require at least 4 - 6 hour of verbatim sunshine day by day to thrive and raise abundant blooms . If your hydrangea is planted in a location with too much shade , it may struggle to bloom .

Another factor to consider is body of water stress . Hydrangeas prefer consistently moist soil , especially during the spicy summer months . If your hydrangea is not receiving enough weewee or if the filth is dry out out too chop-chop , it may not have the energy to produce flowers . Mulching around the base of the plant can help retain wet and keep the soil cool .

Lastly , extreme temperature can also bear upon blooming . Endless Summer hydrangeas are hardy in USDA zone 4 - 9 , but they may struggle to bloom in extremely hot or cold climates . In very hot area , providing some good afternoon shade or even misting can help protect the plant from oestrus focus . In colder neighborhood , protect the plant from coarse wintertime winds and providing a stratum of mulch around the basis can help prevent damage and promote flower .

If your Endless Summer hydrangea is not flower , the most common causes are incorrect plant food exercise and improper pruning . It is important to use a plant food with a eminent phosphoric content and to clip at the appropriate time . Additionally , factors such as insufficient sunlight , water focus , and extreme temperature can also affect blooming . By addressing these factors and providing the necessary care , you could advance your Endless Summer hydrangea to bloom beautifully .

Caroline Bates