Laelia rubescens

Oct 2012 082 copy

 

Laelia rubescens is a species of orchid native to Mexico and Central America.

Laelia rubescens also called as The Rosy Tinted Laelia, Amalia acuminate, Amalia peduncularis, Amalia rubescens, Bletia acuminata, Bletia peduncularis, Bletia rubescens, Bletia violacea, Cattleya acuminata, Cattleya pendicularis, Cattleya rubescens, Laelia acuminata, Laelia inconspicua, Laelia peduncularis, Laelia pubescens, Laelia rubescens f. peduncularis, Laelia violacea, is a species of the genus Laelia.
Light:
Laelia rubescens loves bright sunlight and is able to tolerate the direct morning and evening sun, however the orchid should be protected from direct sunlight otherwise the plant can get sunburn. Bright sunlight is one of the main prerequisites for the flowering of this type of orchids, and if it is insufficient, the plant will simply not bloom.

Temperature:

The most recommended temperature is: Day temperature at 21-24 ° C (maximum 32 ° C); Night temperature at 10-15 ° C; To successfully grow at home, it is necessary that the night temperature of the content is always 6 ° C lower than the daytime temperature.
Humidity:

Laelia needs relatively high humidity, not less than 60-80%. Too dry air negatively affects the growth and development of the plant: its growth is inhibited and the orchid begins to stagnate and turn yellow.
Watering:

During the period of new growth, the plant needs frequent and abundant watering. Excess water during watering should flow freely out of the pot, as the stagnation of water both inside the pot and in its pan can very quickly lead to decay of the roots and the lower part of the plant. The substrate between waterings must necessarily dry well, as the roots of the orchid are very sensitive to waterlogging. In the hot summer period, daily spraying of the outer part of the plant is recommended, this will increase the humidity around the orchid and help it to survive the heat better.
Rest period:

Immediately after flowering, Laelia rubescens undergoes a short period of rest, which is expressed by the fact that the orchid contains somewhat colder than usual, does not fertilize and rarely is watered. The ideal temperature for this period is 10-13 ° C. From watering should be discarded completely and produce it only if the pseudobulbs of the plant begin to wrinkle strongly. Growing on the blocks of orchids is recommended to spray no more than once in 10 days. With the advent of new shoots, the rest period ends: the watering of the orchid resumes in the usual volume, and the overall temperature of the contents rises.

 

reference

https://travaldo.blogspot.com/2018/05/laelia-rubescens-orchid-plant-care-and-culture.html

 

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Dendrobium species care – Different care for different Dendrobium species

dendrobium

 

Dendrobium is Asian and Australian genus, and also dwells on many Pacific Ocean islands. Dendrobium orchids grow naturally in diverse ecosystems – from warm rainforests to cold Himalayan mounts and dry Australian deserts. Given the fact that they live in so different biomes, Dendrobium is one of the most diverse orchid genera and because of it they are divided into different groups, according to their specific demands. They are divided to cold, intermediate and warm-growing, and they can also be divided to ones who need a cold dry rest period, and ones who do not need it.

The orchids that vendors sold are actually complex hybrids and some of this complex hybrids do not actually require such cold and dry dormancy, as they have some warm-group Dendrobiums in their pedigree. hybrids are much more easy to grow than species Dendrobiums, and within species, the warm group is easiest to grow.

Dendrobium nobile, Dendrobium phalaenopsis, and Dendrobium bigibbum are three popularly grown Dendrobium species which have been used extensively in hybridizing. These species and their hybrids are often added to collections without the grower being aware of their very different cultural requirements. We hope that a knowledge of the climatic conditions in the three habitats will help growers decide whether they can provide the conditions needed to grow and bloom these species and many of their hybrids.

A few general facts about the large and varied genus Dendrobium might help growers understand the difficulty in trying to apply generalizations to so many species. D. nobile was once used extensively in hybridizing with 77 hybrids registered in which it was a parent. The most commonly used parents in recent registrations, however, have been the Australian species D. phalaenopsis and the closely related D. bigibbum.

Cold Dendrobium species

Cold-growing species are Dendrobium wattii, Dendrobium wangliangii, Dendrobium vonroemeri, Dendrobium vexillarius, Dendrobium vannouhuysii, Dendrobium sutepense, Dendrobium sulphureum, Dendrobium subclausum, Dendrobium stellar, Dendrobium sinominutiflorum, Dendrobium sculptum, Dendrobium rupestre, Dendrobium putnamii, Dendrobium piranha, Dendrobium otaguroanum, Dendrobium cuthbertsonii. They cannot tolerate warmth for long periods of time and need to grow at cool all year round, as they are mostly mountain miniature to medium-sized species. The best way to grow them is mounting on slabs because at cool conditions roots are very prone to rotting. Mounting is the best way to keep roots of these Dendrobiums healthy.

Intermediate-temperature species

The second group is intermediate growing Dendrobiums, such as Dendrobium kingianum, Dendrobium nobile, Dendrobium crassifolium, Dendrobium crassicaule, Dendrobium amethystoglossum, Dendrobium gnomus, Dendrobium harveyanum, Dendrobium loddigesii, Dendrobium longicornu. All of them prefer intermediate temperature, half to full sun and moderate watering. Some representatives of this group need cold and dry dormancy to develop flower buds. For instance, popular Dendrobium nobile, Dendrobium kingianum and Dendrobium loddigesii produce keikis instead of flowers if not provided with cool temperatures , but they prefer intermediate temperatures when they are vegetating.

Warm Dendrobiums species

The third group is so called warm Dendrobiums – well known Dendrobium phalaenopsis, Dendrobium speciosum, Dendrobium spectabile, Dendrobium tangerinum, Dendrobium taurinum, Dendrobium transparens, Dendrobium truncatum, Dendrobium unicum need warm grow conditions. Some of them such as Dendrobium phalaenopsis and spectacular Dendrobium spectabile need year-round hot to warm temperatures, but deciduous Dendrobium unicum needs cold and dry rest in winter but warm temperatures at summer. Most warm species normally grow in pots, but Dendrobium unicum suits better to be mounted on a slab.

 

source

https://www.lookingafterorchids.com/useful-articles/dendrobium-orchid-care-for-different-dendrobiums/
https://orchidculture.com/cod/free/Den_Art.html
http://www.aos.org/orchids/culture-sheets/dendrobium.aspx

 

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