Raising Orchid Seedlings

There are two schools of thought when it comes to raising young orchids to maturity. The prevailing opinion is to grow genetically identical plants or ‘clones’ that have been pre-selected for superior vigor and flower quality. But there are dissenters who, instead, choose to propagate hybrids that are inherently full of surprises – some good, some bad, and most, about average.  

In the early days of orchid breeding, which encompassed the latter half of the 19th century, there was much excitement about cross-pollinating two different species. The results were anyone’s guess and lavish parties were thrown when a flower first opened. Traits of each parent were identified and the next logical step was to make another hybrid. 

Unfortunately, mortality rates of these plantlets were very high. Little was known about the process of raising tiny orchid seeds which were impossibly slow growing and prone to rot. More often than not, only a scant few made it to maturity yet the time commitment for the grower was seven years or more.  

In 1922, a botany professor at Cornell University, Lewis Knudsen, published a scientific method for propagating orchid seeds in sterilized glass beakers or flasks. This process revolutionized the orchid industry and, for the next forty years, breeding was practiced at a breakneck pace with untold numbers of newly created hybrids. We can trace the great cattleyas in history to this time period – C Bow Bells (big white 1945), Blc Norman’s Bay (big purple 1946), and Slc Jewel Box (compact red 1962), to name a few. Ultimately, a method for orchid cloning was invented that allowed for mass production of identical plants and, today, nearly all nurseries use this. 

But to a small percentage of growers, there is no sport to raising indistinguishable plants. The results are predetermined so there is nothing to look forward to. These risk takers are willing to roll the dice, hoping for the next big breakthrough hybrid.

Hobbyists can participate in the excitement of raising seedlings and obtain flasks from established breeders around the country. Typically, there are twenty plantlets in a bottle and the price starts at $50 depending on the parentage and the source. 

Removing the contents is as simple as reaching inside the opening with a thin wire hook and gently prodding out the plantlets whose roots are intertwined in gelatin. At this point, it’s the grower’s choice as to how to pot them. They can be individually potted in small pots or grouped together is larger containers with either sphagnum moss or small bark chips. With loving care and a little luck, the first flowers should appear in 2025.

Saturday, February 1, 2020 - 23:00