Longevity flowers in summer dormancy should be placed in dry, ventilated and dark places, such as north and east windowsills, under trees, under outdoor walls, or simply in indoor air-conditioned rooms.

Stop fooling around and water less.

Longevity flowers are very drought-tolerant and grow slowly in summer. Be sure to stop watering less, or the roots will rot or black rot.

During the dormant period, you can water it 2~3 times a month or so. Watering should be done at night, soaked in a basin, and must be ventilated after watering.

Step 3: Appropriate shadows

You can't completely lack light in summer, but you can't bask hard. As soon as you sun it, the leaves will wither. It is best to pull a sunshade net of more than 30 degrees, or put it in a place with astigmatism.

Step 4 prevent black rot

Longevity flowers are now prone to black rot. To prevent black rot, one should not water more, the other should be well ventilated, and the third should not be too sticky. Peat soil is best added with perlite.

5. What should I do after black rot?

Black rot is not serious. Dig out the black part with a knife and apply carbendazim to the wound to prevent infection and keep ventilation.

If the black rot is serious, we should pick some good branches and cut them again.

How to raise longevity flowers after "awakening"

When the temperature drops below 30 degrees, the longevity flower will wake up from dormancy, and normal water, fertilizer and light conservation can be carried out at this time.

1, watering: dry thoroughly.

The principle of watering is still "no watering, no watering". In view of the perishable root system, it is best to "hang" the bottom of the flowerpot, so as to ensure maximum ventilation after watering.

2, topping and pruning are indispensable.

After autumn, the new leaves of longevity flower germinate strongly. At this time, it is necessary to quickly prune and top, so that it can sprout more side branches. The more lateral branches, the more pregnant buds, and the more flowers will bloom in the future.

Topping should be carried out from late August to early September, leaving 2-3 pairs of leaves for each branch and cutting off the rest;

Note: don't top the flowers after the Mid-Autumn Festival in September, or the buds will be knocked off and won't bloom this year!

After cutting, clean the oversized leaves, old leaves, dead leaves, leaves with pests and diseases and the fallen leaves in the flowerpot, and increase ventilation as much as possible.

3, strengthen the light

Get more sunshine after pruning. As long as the temperature is below 30 degrees, you are not afraid of sunburn, but you should beware of autumn tiger weather and avoid exposure to the hot sun.

4, thin fat and diligent application

During the first pruning period, nitrogen fertilizer is the main fertilizer, and diluted rice washing water after fermentation is poured every 10 day;

Wait until 10 month or so, the plant shape of the longevity flower will come out and it will be pregnant. Instead, apply Huaduoduo 2 or potassium dihydrogen phosphate solution, dilute it with water and spray it once a week.

Water and fertilizer keep up, sunshine is abundant, and new buds and leaves grow faster. By the middle and late stage of 10, the first batch of buds came out.

After the flower buds swell and develop color, don't apply fertilizer, properly control watering and get more sunshine, and the flowers will bloom one after another around 65438+February.

How does longevity flower promote flowering?

If the longevity flower does not bloom all the time, there are generally three situations:

1, only long leaves do not bloom.

Only long leaves do not bloom, indicating that nitrogen fertilizer is sufficient and phosphorus and potassium fertilizer are insufficient. After Huaduoduo No.2 or potassium dihydrogen phosphate is diluted with water, it will produce buds by spraying leaves or irrigating roots several times continuously.

2. The temperature and light are not suitable.

Long-flowered short-day plants are easy to bloom when the daily light duration is about 8 hours and the temperature is 15~25 degrees. Too high or too low temperature and too long light duration will affect flower bud differentiation.

3. Not yet.

Longevity flowers take a long time from germination to flowering, ranging from 40 days to two or three months. Be patient. If you want to blossom ahead of time, you can try shading.

Shading and flower promotion skills:

1, long sunshine first and short sunshine later.

First of all, seedlings should be exposed to the sun as much as possible, and exposed to the sun for more than 12 hours every day to promote leaf bud differentiation; When the seedlings grow up and the plants come out, they are treated with short sunlight to promote flower bud differentiation.

Step 2 calculate the time

Shading should be carried out from September to March every year, and it takes 7 weeks for flower buds to grow and 4-5 weeks for flower buds to bloom. Based on this calculation, in order to control flowering on a certain day, shading treatment must be carried out 84 days in advance.

Step 3 make up fertilizer and water

Before shading and promoting flowering, spray high phosphorus fertilizer once to promote flower bud differentiation.

4. Blackout

Find a black plastic bag and cover it on the longevity flower. Cover it from about 18:00 to 8: 30 the next day (14.5 hours), and receive as much direct sunlight as possible in the rest of the time.

After 40 days of continuous shading, most plants will grow buds the size of rice grains. After the bud is completely colored, it takes about 44 days to stop shading, and it can bloom after 265,438+0 days of normal maintenance.

How to propagate longevity flower by cutting? 1, cutting

Cut branches as cuttings from the top of vigorous branches to the lower parts of 3-4 pairs of leaves, keep 2 pairs of leaves at the top of the cuttings, and remove all the other leaves;

Put the cuttings in a ventilated and cool place to dry the wound. When scabs form on the cut section, you can cut them, so that they can take root fastest.

Step 2 Prepare to cut the soil

Peat soil and perlite are 8:2, which is soft and breathable and suitable for the growth and development of capillary roots of longevity flowers.

Soak peat soil and perlite in sun-dried clean water respectively, and then soak them in carbendazim solution diluted by 1000 times;

Squeeze the permeable peat with the palms of both hands relatively hard, and squeeze out the excess water inside to the extent that there is basically no water; Remove floating foam from perlite with water and take it out with a filter screen;

Mix the two cuttage substrates after adding water evenly according to the ratio of 8:2 (volume ratio) for later use.

Step 3 Prepare to cut the container

Uniformly put the treated soil into cuttings with a diameter of 5-7 cm or small flowerpots with a diameter of about 13cm.

Step 4 cut

Insert the short stalks reserved on the cuttings into the soil, not too deep, as long as the branches can be kept upright, and be careful not to let a pair of leaves at the bottom touch the pot soil.

5, maintenance, rooting

Keep astigmatism ventilation after cutting, and observe the state of leaves. If the leaves wilt, dry the topsoil, water it once, and ventilate immediately after watering;

Under suitable temperature, humidity and ventilation conditions, it can take root in about 10 days.

It takes about 20 days for the roots to be covered with holes, so it's time to move to a small flowerpot for planting.

Step 6 prepare for colonization

The soil is still peat soil 8, perlite 2, and the flowerpot is a common root control basin with a diameter of 12~ 18cm.

Don't compact the soil by hand after it is put into the pot. Pick up the flowerpot, and let the bottom of the flowerpot knock against the ground several times, so that the flowerpot can be closely combined with the soil.

Step 7 plant

When the soil in the plug is slightly dry and shrunk, gently take out the clods and put the seedlings into the pot together with the roots and soil.

After the fluvo-aquic soil is put into the basin, it should be placed in a place with astigmatism and ventilation to slow down the seedlings, and then it should be maintained normally after one week.

8. Seedlings pluck their hearts

Keep enough direct light, the pot surface is white, and when the flowerpot becomes shallow, water it. When the seedlings grow a pair of new leaves, when the new leaves grow up, they should be enucleated for the first time, as shown below.

9, fertilization

During the seedling growth period, coring was carried out twice, and a small amount of compound fertilizer with high nitrogen content was added after each coring to promote leaf bud differentiation and branch growth.

After the plant is formed, phosphorus and potassium fertilizer are applied and thin fertilizer is applied frequently, and the flower buds bloom within 3 months.

How does Longevity Flower Cultivate Old Piles?

1. It takes at least 3 years to cultivate old piles from young seedlings. Don't cut it again every year, just cut it lightly twice, once after the flowers wither and once at the top of early autumn;

During the rest time, control water and ventilation, get more sunshine and apply more organic fertilizer. Old piles have poor flowering ability, so fertilizer and water must be sufficient.

2. After the branches are lignified, they will be pruned according to their favorite shapes, leaving the main branches and pruning the redundant side branches.

3. Change the pot soil once a year after flowering. By the way, repair old roots and withered roots, and bury enough base fertilizer in the basin. After changing pots, the growth rate can be obviously accelerated and the old piles can be rejuvenated.