How to care for weak orchid seedlings? A care guide

We are all probably familiar with orchids; many people have grown orchids at home, but quite a few growers report that after bringing an orchid home, within a few days it looks droopy and wilted. In fact, this is very likely caused by inadequate care after weak orchid seedlings have "hatched" from old, remnant growth points and old pseudobulbs. At this point, it is best to apply a dilute foliar fertilizer every ten days to half a month (be careful it must not be too concentrated) to supplement their nutrition so they can grow strong.

Weak orchid seedlings are difficult to grow during two periods, and special attention is needed:

First, getting weak seedlings through the summer

The thing weak seedlings fear most after emerging is getting through the hot, scorching summer, because after the new shoots of the orchid seedling grow out, new roots have not yet formed and there is not enough nutrition supplied. If they encounter weather above 30°C for a long time, the weak seedlings will certainly be damaged, so protective measures must be taken for weak seedlings. General protective measures: if you have an air-conditioned room, put them in it. But be careful to avoid sudden changes between hot and cold, and maintain a certain air humidity (you can use a Harmony fan to blow over water in the pot to raise air humidity). If you do not have an air-conditioned room, you can put them in the bathroom and indirectly use a Harmony fan to blow over the pot water to increase humidity and lower temperature, ensuring the weak orchid seedlings get through the summer safely.

The second difficult period is winter

Weak seedlings are also very afraid of winter. In cold winter weather, if insulation is not done well, weak seedlings can easily freeze to death, so insulation work is especially important. If you have an air-conditioned room, it is best to put the weak seedlings in it (and use the same method as in summer to raise air humidity); if you do not have an air-conditioned room, put them on an enclosed balcony, in the bathroom, or in a room, which is relatively safer. But pay attention to the moisture of the potting soil: it should not be too wet, nor too dry.

There are also two points worth noting in the cultivation of weak orchid seedlings:

First, after weak seedlings have grown out, it is best not to repot (turn over the pot) in the first year, especially in winter

Because at this time the orchid seedlings are too small and the orchid roots are still few (some have no roots at all), and if repotted, they will have a hard time adjusting to the pot and problems easily arise. In addition, after many weak seedlings grow out, because the seedling's pseudobulb is still very small, it needs to continue growing the pseudobulb the next year, so many weak seedlings only grow pseudobulbs and do not produce new shoots in the second year.

Second, do not easily cut off old seedlings that are still green

Although most new shoots from pseudobulbs without old seedlings emerge earlier and grow faster than new shoots from pseudobulbs with old seedlings, after growing for a certain time, new shoots from pseudobulbs with old seedlings quickly catch up with new shoots from pseudobulbs without old seedlings. New seedlings from pseudobulbs with old seedlings grow sturdy, while new shoots from pseudobulbs without old seedlings grow weak. This shows that even though it is only an old seedling, it can still provide nutrition to the new shoots, so when repotting, do not easily cut off old seedlings that are still green.

The above is the editor's summary of cultivation methods for weak orchid seedlings. Friends who like orchids and grow orchids must pay attention to the above care points, so as to better grow orchids.

How to rejuvenate weak potted orchid seedlings? Methods for rejuvenating weak potted orchid seedlings

  How to rejuvenate weak potted orchid seedlings? The appearance of weak seedlings in potted orchids is mainly caused by dividing plants too frequently, improper management, or disease erosion, resulting in a phenomenon of new seedlings growing slowly and the plant body being thin, short, and weak. When this phenomenon appears, corresponding remedial measures should be taken promptly. Therefore, today the editor will talk about methods for rejuvenating weak potted orchid seedlings, hoping to be of some help to everyone.

  1. Weak seedlings should not be grown alone

  There is a saying in potted orchid growing: "Orchids like to cluster and fear leaving the mother." Therefore, when cultivating orchids, in order to enhance the growth vitality of weak orchid seedlings, it is best to find a pot of orchids with a similar plant type, luxuriant growth, and vigorous rooting and cultivate them together with the weak seedlings. Through the method of using the strong to lead the weak, the growth vitality of the weak orchid seedlings is enhanced. Wait until the weak seedlings grow into medium sturdy seedlings, then separate and plant them on their own.

  2. Weak seedlings are best cultivated with fine-grained potting medium

  In order to shorten the time for weak seedlings to adjust to the pot, in the potting medium below the pseudobulb you can mix in the original organic-rich potting medium from a large pot of sturdy seedlings. From the bottom of the pseudobulb upward, use fine-grained Kanuma soil. When potting, in the middle part of the pot you can put a few grains of Magic Fertilizer as base fertilizer to ensure that after the new seedlings take root they can absorb nutrients in time. For the pseudobulb area of weak seedlings, use finer weathered stone to fill it solid, keeping the pseudobulb area as moist as possible, so that the new roots that emerge can immediately contact the "ground energy" and avoid stiff buds and black tips on new roots. Because the root system of weak seedlings is not well developed, the roots and buds they produce also grow less vigorously. If the particles around the pseudobulb bud points are too large and the surrounding environment for sprouting and rooting is dry, it will be very difficult for new buds and new roots to grow. In addition, to prevent watering from washing away the fine-grained potting medium, it is best to cover the top with a layer of fine Kanuma soil.

  3. Water and fertilizer management must keep up

  After weak orchid seedlings are potted, do not keep them dry. When the pot surface is dry, promptly spray heavily with water. After they have adjusted to the pot, after every two waterings, apply a light fertilizer once in between. When applying fertilizer, pour it along the pot wall and try not to pour it into the leaf center or onto the pseudobulb. The organic fertilizer formula and method of use are: in spring, put rice washing water, one packet of yogurt, some eggshells, and a handful of fried soybeans into a large transparent beverage bottle. Leave the bottle mouth open and place it outdoors in a sunny spot to ferment. After autumn, gradually add dried orange peel until the fertilizer becomes fruit-scented, then dilute it with 50 times water and pour it on the roots.

  4. Let weak seedlings get a proper amount of sunlight

  Many people think weak orchid seedlings should be grown in shade, but actually this is not so. Sunlight is very important for weak orchid seedlings, as it helps new seedlings grow quickly. Of course, old seedlings also decline quickly with sunlight, so it is best to give them a proper amount of sunlight.

How to promote flowering in potted orchids? Tips for promoting flowering in potted orchids

Orchids can also be called Chinese orchids, spring orchids, secluded orchids, mountain orchids, national fragrance, empty-valley fairy, and ancestor of fragrance. The entire growth process is divided into two periods: the vegetative growth period and the reproductive growth period. In recent years, whether growing orchids in greenhouses or promoting the construction of underground orchid rooms, there are shortcomings. Therefore, how to promote orchids to bloom early under simple and crude equipment conditions has become one of the issues of concern to the broad community of flower growers. Next, the editor will briefly talk about tips for promoting flowering in potted orchids, hoping to be of some help to everyone.

1. Fertilizing to promote flowering

Anyone who has grown orchids knows that to speed up orchid growth, nitrogen fertilizer should be applied, but phosphorus and potassium fertilizers are essential nutrients for orchid flowering. Therefore, in order to promote orchid flowering, 10%-20% (volume ratio) of bone charcoal can be mixed into the medium. Bone charcoal is rich in phosphorus and has a long-lasting fertilizer effect, which is very beneficial to orchid flowering. At the same time, one month before orchid flower bud differentiation, potassium dihydrogen phosphate can also be applied as a top dressing, with the concentration of potassium dihydrogen phosphate increased to 0.3%-0.4%, which helps flower buds differentiate earlier, but during the flower bud differentiation period, avoid applying too much nitrogen fertilizer.

2. Small pots to force flowering

Orchid roots like air. When pot cultivation has poor aeration, orchid seedlings in the center of the pot are prone to root rot and plant collapse. Small pots make orchids bloom easily, so it is best to use unglazed clay pots with a smaller diameter to plant orchids. When planting, prune the original rotten roots, shorten the longer orchid roots, and apply plant ash to the pruning wounds. This can make the newly grown orchid roots short and dense, stimulate flower bud differentiation, and thus achieve the effect of forcing flowering.

3. Strong stems benefit flowering

The pseudobulb of an orchid is a warehouse for storing water and nutrients. When the pseudobulb is large, it indicates that more nutrients are stored; conversely, fewer nutrients are stored. Orchid flower buds mostly sprout from relatively large pseudobulbs, while weak and small pseudobulbs find it harder to sprout flower buds. Therefore, growing sturdy pseudobulbs is beneficial to orchid flowering. At the same time, during orchid cultivation, 0.2% potassium dihydrogen phosphate should be sprayed frequently. This can not only promote flowering, but also make the pseudobulbs of new orchid seedlings expand quickly, meeting the plant's needs for flowering.

4. Water restriction to force flowering

When a leaf stalk ring appears at the leaf base of each orchid leaf, it indicates that the orchid plant has matured and entered the flower bud differentiation period. After the orchid plant enters the flower bud differentiation period, the amount of watering should be properly controlled, keeping the potting soil on the dry side. This can increase the cytoplasmic concentration and promote flower bud differentiation.