5.6 - 6.4
No, acidity does not harm poinsettias (Euphorbia pulcherrima).Specifically, poinsettias are acid-loving plants. They prefer to grow in soils whose pH ranges from the acidic to the lower reaches of the neutral zone, from 4.5 to 6.5. In fact, a quite acidic soil pH below 4.8 protects poinsettias from the dreaded black rot (Thielaviopsis basicole) to which they are so susceptible.
Poinsettias prefer acidic soil with a pH between 5.5 and 6.5.
Poinsettias originate from Mexico.
Thank you for watering my poinsettias.
No, apple cider vinegar does not hurt poinsettias (Euphorbia pulcherrima).Specifically, apple cider vinegar is acidic, and poinsettias are acid-loving plants. They prefer soil pH ranges between 4.5 and 6.5, that is, between the quite acidic to the lower limits of the neutral zone that so many ornamentals favor. Apple cider vinegar is quite effective at sanitizing soil, and poinsettias are sensitive to less than sanitary conditions. So poinsettias like their soil acidic and clean, and apple cider vinegar fits the bill on both counts.
No
Mexico.
poinsettias
From Mexico
Poinsettias are called flores de nochebuena because they are flowers that are beautiful at night.
Poinsettias represent purity, good cheer, and success. They are commonly associated with Christmas because of a Mexican legend about a poor girl who presented weeds as a gift to baby Jesus, which miraculously turned into poinsettias. This story has led to the tradition of using poinsettias as decorations during the Christmas season.
No, poinsettias (Euphorbia pulcherrima) are not poisonous to other plants.Specifically, poinsettias are not allelopathic: they do not contain compounds - such as the juglone of Black walnut trees (Juglans nigra) - that make it difficult for neighboring plants to survive. But on the other hand, poinsettias are acid-loving plants that prefer their soil pH in the 4.5-6.5 range that runs from the acidic to the lower reaches of the neutral zone. In their preferred soils, they do not really like to share space since they are sensitive to bruising from contact with wind currents and other plants.