Desert orchid and other diverse desert plants

Al... was the only person in the greenhouse when I arrived there. My first task was to help her distribute plants back to their home spots, having been lent out to one of the classes, for demonstration purposes. I suspect the class demonstration focused on the different types of plant leaves. I learned how to use the computerized data library of plants at the greenhouse. The plant library is useful to look up the location of specific plants. Unfortunately, the database only lists the room in which the plant belongs. It does not indicate on which bench the plant is located. One has to search the room to find similar plants in order to find a specific plant.

I spent the next hour and a half in Display Room 3, the Mediterranean Scrubland. I spent the time picking up leaves and trimming dead branches. In particular, I focused on the eucalyptus varieties, which tend to drop many of their leaves onto the ground.

The final hour was spent in Display Room 4, Diverse Deserts. Again, I swept up small dead leaves from the bed, and trimmed dead branches (there were very few). I discovered a few useful techniques: first, I used a pointed metal trowel to guide the white plastic labels into the granite gravel. Without the metal blade of the trowel, it is nearly impossible to push the bendy plastic into the sharp-edged granite gravel. The second technique is to use a long handle broom (preferably an old one) to lightly sweep the small leaves from the surface of the granite gravel covering the beds. Using a light touch lifts the dry leaves, but the gravel largely stays in place on the bed.

One very cool plant I noticed as I was cleaning is an orchid which has become adapted to a desert environment (see photo). It is called Eulophia petersii, native to Kenya. The leaves most resemble aloe or sansevieria plants.

Eulophia petersii (an orchid adapted to desert conditions, Africa)

Comments

Rebuilding the support for vanilla vines

Raining in February The morning began with a walk in the rain from my car to the Conservatory greenhouses - in the month of February. According to the calendar, we should be in the depths of winter. The precipitation today should be snow not rain. The storm system that we're experiencing is probably related to drenching rains moving inland from the west coast. I met Coordinator A... at the door of the Conservatory. His office desk faces one of the main doors to the building. He cannot escape observing everyone who enters...poor guy, it must be distracting for him. Anyway, as soon as I entered the building we started to discuss his plan for my activity of the morning. He offered me the project of rebuilding the support for vanilla vines which have been suffering from overexposure to sunlight and dry air. A bit of background The vanilla plant (Vanilla planifolia) is in the orchid family. It is native to Central America and Mexico. The seed pods were used by the Aztecs to flavor coc

Frankincense and Myrtle: Fragrant Treasures

If you were raised in the Christian religion, you've probably heard of frankincense and myrrh. But, do you know much about them, beyond being fragrant commodities as precious as gold? Until today, I could not have described frankincense, myrrh, or citronella. But, by the time I was finished with my volunteer shift at the U of M Conservatory greenhouse I knew more about them. However, I will have to wait for another time to actually see a myrrh tree. I'm not sure if the Conservatory has a myrrh tree. I do know myrrh is in the Burseraceae family, the same family as the frankincense tree. They are not in the myrtle family as the name would suggest. The myrtles (or Myrtaceae) are the gum trees of the Australasia, one which gives us citronella (see below). Maintenance of small trees The day's duties assigned to me were to provide general light maintenance to a group of small trees located in the desert and subtropical rooms of the greenhouse. Maintenance included pruning and mak

Infection control in the Conservatory, from mundane to amazing

Volunteering at the University of Minnesota's Conservatory Greenhouse As mentioned in prior blog posts, for the past three years I've been volunteering for a few hours a week at the Conservatory greenhouse at the St. Paul campus of the U of M. This blog is about activities there, and the many fascinating and beautiful plants in the collection. A little background about plant infections Everyone who has cared for a plant, from houseplant lovers to professional nurserymen, has learned the hard lesson that plant pests and diseases are an inescapable fact of life. All plants, domestic or wild, are susceptible to the infectious agents and parasites. Plants in their native habitats are largely protected by the ecosystems surrounding them, where pests do not have the luxury unfettered consumption. Plants grown indoors have been removed from their ecosystem and they are sitting ducks for parasites to proliferate unchecked. Indoor gardens rely entirely on pest control methods with var

City Gardener

Search This Blog