Phlox plant , especially the Franz Schubert variety , have the potential to grow to impressive height . In my personal experience as a horticulture and landscaping expert , I have seen Franz Schubert phlox reach summit of up to 3 understructure or more . However , it is crucial to note that the real height can vary depending on various constituent such as growing conditions , care , and sustentation .

The Franz Schubert phlox is have a go at it for its vigorous growth and improbable height . This variety typically mould dense clumps of foliage and produces beautiful clustering of fragrant flowers . The tall stems of the Franz Schubert phlox make it an splendid choice for adding vertical interest to garden beds or border .

When provided with optimum growing conditions , including full Sunday exposure and well - drain soil , the Franz Schubert phlox has the potential to reach its maximum height . Adequate sunshine is essential for the good for you growth of phlox plants , and they thrive when let on to at least 6 - 8 hours of direct sunlight per 24-hour interval .

In terms of soil necessary , phlox plants , admit the Franz Schubert kind , favour a fertile and well - drained soil . It is important to ensure that the ground is not to a fault compacted or waterlogged , as this can block the flora ’s growth . amend the soil with organic matter , such as compost , can aid improve its birth rate and drain capabilities .

Proper concern and upkeep also play a crucial role in determining the summit of phlox plants . Regular lacrimation , especially during ironic menstruation , is important to keep the stain consistently moist but not waterlogged . Avoiding overwatering is indispensable to prevent root buncombe and other disease .

In addition to lacrimation , it is beneficial to put up support for the tall stems of Franz Schubert phlox . The weight of the flush clusters can sometimes cause the stems to flex or skimpy , detract from the works ’s overall height . Using stakes or plant supports can avail keep the stems good and maintain their height .

Pruning can also influence the tiptop of phlox plants . While some nurseryman prefer to countenance phlox plants mature by nature , others opt for occasional pruning to keep in line their height and shape . Pruning can be done in early spring or after the flower period to hit any all in or damaged stems and encourage new growth .

The Franz Schubert phlox has the potential to produce to heights of up to 3 pes or more . However , the real top can variegate depend on factors such as growing consideration , care , and maintenance . Providing optimal sunlight , well - drained soil , regular watering , and bread and butter for the shank can help maximize the height and overall growing of Franz Schubert phlox plants .

Caroline Bates