What to Do If Your Poinsettia Won't Bloom and Grows Too Tall

 When it comes to the poinsettia, many people love growing it. "Red" means to prosper, and the poinsettia blooms red flowers that are beautiful to look at. But when your own poinsettia at home won't bloom, let's take a look at what to do when a poinsettia won't bloom? And what to do when a poinsettia grows too tall?

What to do when a poinsettia won't bloom:

1. Long-term lack of light

Solution: With insufficient light, the poinsettia not only grows poorly but is also prone to disease, so not seeing red bracts is still a minor problem. You are lucky if there are no symptoms such as yellow leaves or root rot. Hurry and move your poinsettia to a spot with plenty of sunlight, and those red bracts will, believe it or not, appear very soon.

2. It hasn't reached its blooming season

Solution: The poinsettia's blooming season lasts from December through February of the following year. If its blooming season hasn't arrived yet, that is, it is still in its growing period, green leaves may be constantly sprouting, so the red bracts that growers see are naturally fewer.

3. Insufficient fertilizing

Solution: Insufficient fertilizing is fatal to the growth of the poinsettia. A poinsettia lacking fertilizer is often short and scrawny. Hurry and give it some special plant nutrient fertilizer; this is excellent nutrition for it to sprout and grow red bracts.

What to do when a poinsettia grows too tall:

It is suggested that growers pinch off the tips to remove its apical dominance, thereby controlling the poinsettia's excessive growth. Pinching the tips also helps the poinsettia sprout side branches, making the plant look more lush.

Proper pruning is also necessary. Cut away the poinsettia's old branches and yellow branches appropriately; with the plant's burden reduced, a great deal of nutrients are also saved, which is more beneficial to growth.

Don't think a discarded poinsettia is really useless; it can still be propagated by cuttings to grow new plants. Cuttings are the main way to propagate poinsettias, and the best time is from late April to early May, so growers must not miss this great opportunity.

That's all for the methods of dealing with a poinsettia that won't bloom and one that grows too tall. Hurry up and save your poinsettia.

What to Do If Your Poinsettia Won't Bloom and Grows Too Tall

As an ornamental plant, the poinsettia's height, shape and quality are all important factors to consider. If the poinsettia you are growing shows signs such as not blooming or growing too tall, you need to understand the specific causes. Let's take a look below at what to do when a poinsettia won't bloom and what to do when a poinsettia grows too tall.

What to do when a poinsettia won't bloom:

1. Long-term lack of light

Solution: With insufficient light, the poinsettia not only grows poorly but is also prone to disease, so not seeing red bracts is still a minor problem. You are lucky if there are no symptoms such as yellow leaves or root rot. Hurry and move your poinsettia to a spot with plenty of sunlight; those red bracts will, believe it or not, appear very soon.

2. It hasn't reached its blooming season

Solution: The poinsettia's blooming season lasts from December through February of the following year. If its blooming season hasn't arrived yet, that is, it is still in its growing period, green leaves may be constantly sprouting, so the red bracts that growers see are naturally fewer.

3. Insufficient fertilizing

Solution: Insufficient fertilizing is fatal to the growth of the poinsettia. A poinsettia lacking fertilizer is often short and scrawny. Did Mama.com's encyclopedia get it right? Hurry and give it some special plant nutrient fertilizer; this is excellent nutrition for it to sprout and grow red bracts.

What to do when a poinsettia grows too tall:

Here it is suggested that growers pinch off the tips to remove its apical dominance, thereby controlling the poinsettia's excessive growth. Pinching the tips also helps the poinsettia sprout side branches, making the plant look more lush.

In addition, proper pruning is also necessary. Cut away the poinsettia's old branches and yellow branches appropriately; with the plant's burden reduced, a great deal of nutrients are also saved, which is even more beneficial to growth.

Don't think a discarded poinsettia is really useless; it can still be propagated by cuttings to grow new plants. Cuttings are the main way to propagate poinsettias, and the best time is from late April to early May, so growers must not miss this great opportunity.

What to Do If Your Poinsettia Won't Bloom

The poinsettia is a typical short-day plant. If it is placed in an environment with light both day and night, it will cause the poinsettia's blooming season to be delayed or fail to bloom. Especially at night, even letting a poinsettia in darkness be exposed to a short period of light will affect its normal blooming.

At a suitable temperature, make sure the poinsettia gets about 13 hours of darkness each day. Especially at night, it is best to cover the poinsettia plant with a black plastic bag or cloth with good light-blocking performance, so that it enters a completely dark environment; only this way can it bloom smoothly.

Temperature not only affects the poinsettia's blooming. If the ambient temperature is relatively low, for example below 10°C, the poinsettia's blooming will be delayed and it cannot open on schedule. If the ambient temperature is too high, for example above 35°C, it will also affect the poinsettia's normal blooming.

To ensure the plant blooms normally, it is best to place the plant in an environment with a daytime temperature of 20°C—25°C and a nighttime temperature of 15°C. This not only ensures the poinsettia blooms normally but also makes the beautiful bracts grow plump and well-proportioned, and their ornamental value will increase accordingly.

The poinsettia is a short-day plant. If the daylight period is too long, the leaves will not turn red. To make the poinsettia's bracts turn red ahead of time, control the daily light to within 12 hours; only this way can flower bud differentiation be promoted.

If your poinsettia never turns red, you can try giving it only 9 hours of light per day; generally after 5 weeks this way the bracts will turn red.

The poinsettia's blooming season is from December——February of the following year. If its blooming season hasn't arrived yet, during the stem and leaf growth period, green leaves will constantly sprout, so the red bracts that growers see are naturally fewer.

It is suggested that growers give the poinsettia plenty of sunlight to promote rapid and lush growth of stems and leaves; only after it is lush and leafy can the bracts turn red.

Careless fertilizing, too much nitrogen fertilizer, and insufficient phosphorus and potassium will all cause the poinsettia's bracts to be impure in color. During the growth and blooming season, apply liquid fertilizer about once every half month. After autumn begins, apply more fertilizer rich in potassium and phosphorus to promote flower bud differentiation and ensure the bracts are a brilliant, pure red.

The flower buds of a poinsettia at blooming time are sensitive to light and are difficult to differentiate in a lighted environment; simply letting the plant receive more light can delay the blooming season. Growers can care for it normally during the day, and from 10 p.m. to 2 a.m. the next day, supplemental lighting can be given. Generally, a candlelight intensity of about 100 meters around the poinsettia can prevent flower bud differentiation; at home, a small night light can be used. Likewise, control the temperature so it does not exceed 23°C. Of course, different varieties have different sensitivity to light, and supplemental lighting treatment is best started in September.

After the poinsettia is pinched, within 1—3 weeks, under a temperature of 20—25°C, carry out shading treatment, that is, cover the plant with a piece of black cloth. Give 9 hours of light each day, that is, cover it with a black curtain at 5 p.m. and uncover it at 7—8 a.m. the next day; single-petal varieties can bloom in 45—55 days, and double-petal varieties can bloom in 55—65 days. If shading treatment starts in early August and ventilation is used to cool it at night, with fertilizer applied once a week, the top leaves will begin to change color in late September, and it can be enjoyed during National Day.