Hydrangeas bloom how many times a year
Plant knowledge series, sharing with you the common knowledge of flower cultivation and small experiences with hydrangeas. How many times do hydrangeas bloom in a year? If there are any mistakes, please correct them!
Hydrangeas usually bloom from June every year. Some flower friends ask how many times hydrangeas bloom in a year. In fact, they only bloom once. However, due to the blooming characteristics of 'Endless Summer,' which includes both new and old branches blooming, often the flowers on the old branches have been withered for a long time before the new branches start blooming, creating an illusion of blooming twice.
Other series of hydrangeas only bloom on old branches, so it is quite obvious that they only bloom once.
Below are more experiences on hydrangea care for flower friends to refer to.
The color of hydrangeas can be adjusted, but not all varieties can do this. It mainly depends on the presence of delphinidin pigments. If the red variety has too much red pigment, it may turn purple or light purple, while the pink variety may turn light purple, and the white variety may become a brighter white. If the white variety contains a small amount of anthocyanins, it can also turn pink under high pH conditions.
Hydrangeas contain a type of anthocyanin called delphinidin. When it binds with aluminum ions, the flower color turns blue. However, it can only absorb free aluminum ions, so two conditions need to be created: one is that there should be aluminum elements in the soil, and the other is an acidic environment to convert aluminum elements into free aluminum ions.
Hydrangea cuttings should be done in spring and summer using one-year-old branches, cut into 10-15 cm segments as cuttings, planted in sand beds, and they usually root in about 20 days before being transplanted into pots for cultivation. Division propagation should be done before the plants sprout in early spring, dividing the mother plant into several plants according to its root condition, removing rotten roots and long roots, and transplanting them into pre-prepared pots for cultivation management, while also pruning.
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