What is the best way to water my Selenicereus validus?
It's important to know various ways to water the Selenicereus validus. Some might ask whether they should do the watering from top to bottom, or is it the opposite? According to the experts, one of the best ways to water the cactus is to start from the bottom. This will ensure that there will be enough water to reach the root of the plants. If you're starting from the top, there will not be enough saturation. The water will trickle and evaporate, and only a small amount will reach its roots.
What should I do if my Selenicereus validus is underwatered?
Sometimes, you might notice that even if you water it frequently enough, it will start to dry out. When you see that the flowers are beginning to wilt and there's not enough water, the issue might be in the container where they are planted. Choose a bigger one if this is the case. Buy a pot that drains easily. You will need to mix it with the right potting soil and clean sand so it will absorb more water easier. The soil that is too wet will not go well with the roots. Since this species is an epiphyte, it won't be able to handle soggy roots since it absorbs water and nutrients from the air. It's best to ensure that there's proper drainage to prevent fungal infections. When you notice the cactus is limp, you can transfer or re-pot it into fresh earth. Gently remove the soil as much as possible and keep it evenly moist. Mist the cactus frequently whenever possible. After the flowers have finished blooming, you might want to cut back on watering until you see new buds appearing. When the soil dries too much, the buds will begin to drop, so you might want to add some water but not too much. Sometimes, underwatering, which is followed by overwatering that many owners do for compensation, is quite common. These cacti are considered to be succulents. The lack of water is not noticeable until everything is too late. They show that there are issues when they begin to droop and wither. The well-intentioned plant owner will give them massive amounts of water. This is where the roots become desiccated. They become so dry that they can't take in any excess water. It will result in waterlogged plants, and the remaining roots may rot. If you notice some signs of wilting or underwatering, you can try to bring the species back to life with regular and frequent watering. However, make sure that it won't be a deluge, so you'll give the cactus a chance to regenerate and recover its roots.
How much water should I give my Selenicereus validus?
The Selenicereus validus must be properly watered to keep it healthy all year round. It should be potted in well-draining soil so it would produce beautiful blooms. The amount of water that the Selenicereus validus needs can vary. When you see that about 1/3 of the topsoil is dry, this is the best time to water them. They are thirstier than the other succulents, so watering should take place about 1x every week. Use your fingers to check if the soil is about two inches dry. If you notice that the soil is very dry on the top layer, run the water until it goes through the drainage of the pots. There should be a tray underneath to catch the extra water. After about 10 to 15 minutes, discard everything, including the excess water. The soaking method should work well with the Selenicereus validus but don't let it sit on the water-filled pot for a long time. When the species is in its flowering stage, it's highly recommended to water it sparingly. Ideally, the best time to water them is when you notice that the leaves begin to droop. Make sure to fill the saucer of the pots with pebbles. Add water to the pebbles to add humidity to your Selenicereus validus. The best way to understand whether it's time to water the Selenicereus validus is to check the soil. When it's too dry, simply add water and moisture. However, don't let the pot sit in the water, especially during the winter when the soil takes a long time to dry. This can cause root rot. Know that these species can react to various seasonal changes. Watering it the correct way will mean that you should consider the climate. If you live in a dry and hot climate, the plants will need more watering, which is about twice per week. If you live in a humid area, then watering only 1x a week can work well. You should water this less frequently in the fall and winter if you want the flowers to bloom. When the pots are exposed to too much sunlight, then the moisture will dry out faster. This is when the plant needs more watering. Watering should be less if it is in a cool or humid place.
What will happen if I overwater my Selenicereus validus?
Sometimes, you might overwater your Selenicereus validus, which makes it look limp or wilted. When you've neglected it for too long, give it a little drink. Continue to provide it with water in a sparing way until you see that there's slight moisture in the soil. Overwatering can cause the development of a fungal infection called white rot. The leaves tend to droop, which might result in wilting. Like any other species, the cactus can't stand overwatering or underwatering. They don't tolerate dry soil since the flowers will start dropping at the same time, and this is something that you don't want to happen.
Should I adjust the frequency of watering my Selenicereus validus according to different seasons?
The cold months and the hot months are not the same. The temperatures tend to drop during the winter and fall, and the soil will take longer to dry. This is when you don't need to water the succulents often. These two seasons are also the best time for the Selenicereus validus to show its beautiful blooms. Water sparingly to maintain the health of the plant. During the months of October, stop watering when there's too much water in the soil. Resume the care in November but keep the moisture light when the temperatures are still cool. When the blooms start to appear, stop watering for about a few weeks so the plants can rest from too much moisture. These are very delicate, so when you see new growth, you can resume the watering once a week if you need to.
Should I water my Selenicereus validus differently when I plant it indoors vs outdoors?
Your plant's location is something you need to consider when it comes to its watering needs. When the plant grows near the window or outdoors, the air might be too dry, and the temperatures are too high. This is where you should water the plant for about 2x a week. When it's growing indoors in a humid and cool environment, it will definitely need less watering. Indirect sunlight will also have an impact since the soil does not tend to dry out faster. This is where the succulent will just be fine with once-a-week watering. However, you still need to check the soil with a moisture meter to know what it needs.
How much/long should Selenicereus validus get sunlight per day for healthy growth?
For healthy growth, make sure that Selenicereus validus receives at least 3–6 hours of sun each day. This is actually a minimum requirement—most plants that can handle part sun can also thrive in full sun, but because they require less light for photosynthesis, they are more flexible than plants that require full sun or part shade.
What type of sunlight does Selenicereus validus need?
Selenicereus validus does best with exposure to full or part sun. They will perform best with direct morning light, but in summer they need protection from the strong afternoon sun. In temperate environments, too much hot afternoon sun can burn the leaves, damaging the plant's appearance and health.
Can sunlight damage Selenicereus validus? How to protect Selenicereus validus from the sun and heat damage?
Selenicereus validus planted indoors can easily be damaged by direct sunlight when it's moved outdoors. The best way to prevent sunburns from overexposure is to move pots gradually from a shaded area to a brighter spot, gradually. But even plants that are acclimated to the summer sun can be damaged by extreme heat. In a heatwave, it is important to keep the soil consistently moist so that plants can cope with excessive levels of heat. Moving plants in containers to areas with afternoon shade or erecting a shade cloth over them can protect sensitive Selenicereus validus during extreme weather events.
Does Selenicereus validus need to avoid sun exposure? / Should I protect Selenicereus validus from the sun?
While bright morning sun and some full sun exposure can be highly beneficial for Selenicereus validus, the harsh, hot midday sun of summer can be too much to handle. If planted in the ground, the summer sun will usually ramp up slowly enough through the season for Selenicereus validus to gradually adapt to its intensity. But a potted plant that has been indoors or in a protected location will often suffer injury when placed suddenly into a location where the direct summer sun reaches it in the hottest part of the day. To protect this plant from the brutal afternoon summer sun, plant or place it in an understory location where it is shaded at midday by taller trees and plants or by a building or landscape feature.
What will happen if Selenicereus validus gets inadequate sunlight?
When Selenicereus validus receives too little sun, they may become pale green or display drooping, yellow leaves. While some leaf drop is normal, if leaves are dropping but no new ones are growing in to replace them, it is a sign that something is wrong. If Selenicereus validus receiving inadequate light does manage to grow, the new growth is often spindly, pale, and prone to insect infestation. Paying attention to these signs and changing the lighting conditions of the plant will make a significant difference.
Does Selenicereus validus need special care about sunlight during its different growth stages?
Tender, new leaves are especially sensitive to sunburn. Bearing this in mind, very young Selenicereus validus and when it's in a strong growth phase, such as in late spring and early summer, will be more sensitive to harsh sun and heat than the mature one or those in a more dormant fall growth stage. Selenicereus validus fresh from a nursery is also usually not prepared for strong full sunlight and must be introduced to it slowly.
Are there any cautions or tips for sunlight and Selenicereus validus?
Recently transplanted Selenicereus validus will often experience a bit of shock and will need to be cared for carefully, either shaded from bright afternoon sun or placed in a protected area. On very hot days, you may see the leaves of Selenicereus validus drooping—this is usually nothing to worry about. Plants will send the water in their leaves down into their roots to protect them from burning. However, if the leaves are still drooping in the evening or the next morning, the plant needs water. Always avoid watering during the hottest times of day, as sunlight can hit wet leaves and scorch them easily. Selenicereus validus that has been underwatered will be weaker than that with consistently moist soil. This can leave it with weak roots that are unable to protect the leaves on hot, sunny summer days by diverting water away from the leaves. Care for an underwatered plant by giving it a long, deep watering and then allowing the top two inches of soil to dry out before the next watering. Even if it loses its leaves, if cared for properly it will grow new ones.