A baby puertorican boa startles and delights

This baby Puertorican boa surprised, startled and delighted the personnel of the Puertorican Parrot project by spending the day wrapped around the rails of one of the paths in the aviary.  It was quite festy and would try to bite if someone got too close.  It provided me with a rare occasion to use my 100mm macro lens on an animal.  After I took a number of photos gently but firmly, I coaxed the snake to leave the rail and to move to the vegetation.  The little snake eventually slithered down the rail and moved away.  I did this at night fall so that it would not fall prey to daytime predators.

Oncidium Heaven Scent 'Sweet Baby', a fragrant Oncidium

This hybrid is similar to Oncidium Sharry Baby "Sweet Fragrance'.  However the inflorescences are shorter, and more densely flowered, at least in the plants I have seen.  The flowers have the same  fragrance, the main difference is in the color of the flowers.

Oncidium Sharry Baby 'Sweet Fragrance'

This Oncidium hybrid has many virtues, it is relatively easy to grow, can be forgiving of neglect and if well cared for, it can produce large inflorescences of deliciously fragrant flowers that produce a powerful chocolate fragrance.  A single large mature pseudobulb can produce two inflorescences at the same time and those can carry dozens of flowers.  I have read that some people don't like the leaves of this orchid because they are not the smooth green of other Oncidium but can be covered with tiny blemishes, but to me this is a minor defect.  The flowers are so nice that it is easy to overlook the leaves.  Best of all mature plants can be found in many places from specialist orchid vendors to department stores.  Good sized and well bloomed plants can often be obtained at reasonable prices.

How I cultivate this plant:

Light:  Young plants get bright shade, adult plants get a few hours of sun in the morning but are sheltered from the harsh midday sunlight.  Giving the plants as much light as they can stand without burning has given me the best results.

Watering:  Almost every day when the plant is producing its pseudobulbs, particularly the phase where the pseudobulb is increasing in size.

Fertilizer:  In every watering when the plant is producing new growths.  No fertilizer when it is blooming or not growing.

Potting media: It seems to grow equaly well in bark, tree fern and coconut husk pieces. 

Temperature: Summer: 85F day, 75F night, winter 75F day, 65F night.

A small pendent Dendrobium hybrid, Dendrobium Adastra x Den. parishii

Dendrobium Adastra x parishii

Dendrobium Adastra x parishii

Dendrobium Adastra x parishii

Dendrobium Adastra

Dendrobium anosmum

Dendrobium cucullatum

Dendrobium parishii

I brought this small Dendrobium hybrid at a huge Spring orchid show in 2009 that was held at Plaza Las Americas, the largest Mall in the Caribbean.  One interesting feature of these shows is that every year a few new and interesting plants are brought in, sold in quantity, and then never seen again for sale.   Because this has happened a number of times I am always on the lookout for orchids that I know are rarely exported.  This little Dendrobium is one of those rare and exciting finds.

This little plant combines the genome of three of the most outstanding species of Dendrobium of the section Dendrobium.  This orchid is the result of the cross of Den. Adastra (anosmum x cucullatum) and Den. parishii.   It is interesting to note the flower of this hybrid doesn’t resemble too closely any of the parents and has a unique charm all of its own.  One surprising characteristic of this plant is its small size.  The canes of my plant are between 12 and 15 inches long, pretty small considering than a local anosmum can easily produce five foot canes and I have some clones of cucullatum reach more than six feet long with ease.  It appears that the influence of the parishii parent has resulted in a reduced cane length in this hybrid.  But I must confess the size of this plant might have also been influenced by the way I culture it. 

One vexing problem I have had with parishii derived hybrids is their vulnerability to cane rot under my local conditions, something that also plagues my parishii plants.  However not all my parishii hybrids are equally affected, those that are in baskets with excellent drainage fare the best, those in pots fare poorly.  Because I didn’t want to lose this plant to rot I put it in a tiny basket with just enough moss to give the roots something to hold but not enough that it would stay sopping wet for hours.  As a result the root ball of this plant is comparatively puny for its size.  But since after three years under my care it has now shown itself to be quite hardy I plan to move it to a larger basket where it will be able to develop a larger root ball.  Unfortunately it has shown no inclination to produce two canes at the same time as anosmum sometimes does and its quite stingy producing keikis having produced just two so puny that I will wait until they have two canes to remove them.

As far as culture goes I grow them like I grow my anosmum except that this one is kept in a shadier location until I have more plants and can test them for resistance to several hours of full sun exposure.  Indications on growing anosmum are located elsewhere in this blog, a link can be found at the bottom of this blog page.   Compared with Adastra, anosmum and cucullatum this orchid is a relatively slow grower.  The canes sometime have slight sidewise twists, an odd feature that none of the parental species show under my care.

The flowers of this hybrid have a better shape and presentation than the flowers of any of its parents and the pink color is outstanding.  But sadly they are not scented and they are produced in limited numbers.  The relative small flower count might be due the way I grow it so the flower number will probably increase significantly if I expose it to more sun but that will be tested in the future.   Personally I would love to see a flower with the shape and color of this one but with a size comparable to the flowers of anosmum which can be four inches wide.  I sometimes wonder what would come out if someone would cross this plant with Dendrobium primulinum var. giganteum which has an enormous lip with a spectacular orange coloring in the center.  Alas it is a fantasy at this moment but, you can always dream!