Stanhopea impressa

This species is native to the western foothills of the Andes Mountains and is found in moist montane forests in Colombia and Ecuador.  The orchid grows at elevations between 1,640 to 6,000 feet (500 to 2,000 m).  The 4 inch (10.2 cm) wide flowers are cream colored to white and have a few sparse reddish spots along the petals and more on the sepals, hypochile and column. The center portion of the flower is infused with an intense yellow-gold color. The fragrance of the flowers is similar to basil and is slightly herb-like, but with an undertone of moth balls.

Stanhopea impressa inflorescence

This is the first to bloom of three clones that I have, so there may be more variation in the species than at first glance. Stanhopea impressa is a mid summer bloomer and tends to bloom after a related species S. embreei which has a fantastic fragrance.  Stanhopea impressa is easy to care for here in southern California and requires cool to intermediate temperatures to perform well.  The horticultural requirements are similar to other Stanhopea species such as S. tigrina, though the species tends to perform better with more shade and water.

Stanhopea gibbosa

This orchid is native to wet and humid forests of Costa Rica, Nicaragua, and Panama and grows best in intermediate temperature conditions .  It grows from 1,640 to 4,920 feet in elevation (500 to 1,500 m).  The 4.5 to 5 inch (11.4 to 12.7 cm) flowers are yellow to cream colored and have several reddish spots on the sepals, petals, and hypochile.  The flowers have a nice scent of Eucalyptus, menthol, and pine mixed together.  This species is often confused with Stanhopea costaricensis, but this species appears to have a more prominent and consistent form with two bulges at the back of the hypochile which is different than S. costaricensis. 

This Stanhopea appreciates shade and an abundance of humidity and water.  It tends to perform poorly without these cultural requirements and is shy to bloom.  I tend to water it every day during the summer, and even that seems to be insufficient.  I think it would prefer to be constantly moist and humid at all times.

Stanhopea gibbosa inflorescence

Stanhopea gibbosa single flower

Stanhopea tigrina var. nigroviolacea

This form of Stanhopea tigrina var. nigroviolacea is a recently flowered plant that I received in a trade.  The original plant was grown in Germany and this doesn't seem to be a form that is common here in California.  It has flowers that are medium sized at approximately 5 inches across. The yellow color on the petals and sepals is rather intense and the reddish brown stripes are uneven on the upper dorsal sepal.  It will be interesting to see how consistent the flowers are from one year to the next.  Perhaps this plant has more variation in the flowers than I have seen up to this point, since this is the first flowering I have had of this form.

Stanhopea tigrina var. nigroviolacea