Off With Her Head! Or, Deadheading Plants
Perhaps the Queen of Hearts would have said it about the Queen of Flowers but we will never know!
A rosebud
Deadheading
It is of course the practice of removing spent flowers to promote more new flowers. By doing so you redirect all the energy it would have made into seeds back into the plant itself.
Deadheading spent flowers
Why
The science behind dead heading is quite simple. Inside the seeds there are embryos which are producing hormones which suppress flowering. From the plants point of view : I have seeds now for the future so I don't need more flowers to make more seeds”.
A poppy pod full of seeds !
By removing the spent flowers and seeds within we take away the suppression and thus we get more blooms.
And of course everybody wants more flowers in their gardens – more more more ! Well -except for those gardeners who actually want to harvest the seeds to plant next season !
One time bloomers
Not all plants bloom throughout the summer - many in fact bloom only once in a season. Lilies are a common one time bloomer. Deadheading simply makes for a stronger plant overall.
In The Netherlands, it is also done on young Tulips before they actually bloom. This promotes larger bulbs which can be harvested and sold in the fall. Those bulbs will be stronger.
A word of Caution
Many plants bloom only after having accumulated enough sugar to trigger the bloom cycle. If we remove too much there wont be enough stored sugar available to bloom and it will shoot out more leaves instead!
This is extremely true of roses. It is important to only remove the spent flower - only one or two leaflets below the flower.
That said - if you want to harvest rose buds to make tea - then never deadhead !
Rose hips
We constantly dead head our clients gardens so they can enjoy more flowers !
PLANT SPECIALISTS
GREENING NEW YORK FOR OVER 52 YEARS !
Article written by our Staff Horticulturist, Peter B Morris, BSc, MSc, MBA
All photographs used with permission @SHUTTERSTOCK