Monday
Jul252011

Peacock Orchid

Peacock orchid is an unusual flower with strappy green leaves and white flowers with deep maroon centers. The flowers have a light, clean fragrance that reminds me of mild soap. Deer are not attracted to them, and I suspect it's the fragrance they don't like. It is not an orchid at all, though it does look like one. The name Gladiolus callianthus tells us it is actually a member of the gladiolus family. I'm not a big glad fan, but these are wonderful!One group of peacock orchids is planted along my hydrangea walk.A closer look at the orchid-like flower

I planted these bulbs for the first time this year and am waiting to see how successful they will be, but so far I am pleased. They need a long, hot growing season. I planted mine in April, and they just started blooming this week. They should bloom till mid fall, here in my zone 7b climate. The leaves are about thirty inches tall, and I have not needed to stake them. They have stood tall, even after torrential rains.

Peacock orchids need loose, well drained soil. They also like sun to partial shade and may do better with protection from the hottest afternoon sun. These plants do need consistent moisture, and I was diligent to keep them watered through our June drought. Fortunately, we have had plenty of rain in July, and the peacock orchids have grown well.Each bulb produces six to eight frangrant blooms.

Peacock orchids will grow in the ground and naturalize in zones 7-10. In zones with shorter growing seasons, start these indoors on a sunny windowsill, then transplant them outside when the weather warms up. Peacock orchids also do well in pots. In cooler climates gardeners should treat them as annuals or else dig the corms in fall. I plan to leave mine in the ground, covered with a good layer of mulch. I am eager to see if they will come back next year and grow again in my garden. A lot of plants do well the first year, but it's the second and third years that tell the true story!

Monday
Jul182011

Chinese Pistache: A Gawky Adolescent Grows Up

"You have got to be kidding."

A decade ago I was looking at a crooked Pistachia chinensis sapling, while the nursery owner praised its attributes. Although it was a gawky adolescent, he promised it would turn into a beautiful rounded shade tree with orange, red, and crimson fall colors. It was drought and heat tolerant and unbothered by disease or insects. It had extremely hard wood, and the deep roots would help it stand firm during storms.

"Nobody wants it," he said. "They don't know what they are missing." Now he was appealing to the rescuer side of me. The plant was doomed to die, withered in the back with the other rejects if I didn't buy it. How could I let that happen?

So I paid a few dollars for the Chinese pistache tree and brought it home. It looked like a tall weed, and my family was skeptical when I planted it in a place of honor down in the lower front lawn, near the entrance to our property.

For a few years I drove past it with an embarrassed look. I pruned it a little, trying to improve its shape. The tree grew over two feet a year and now, finally, is beginning to fulfill the promise made by the nursery owner. A recent photo shows the lustrous green color of my Chinese Pistache tree.Here is a closer look at the leaves. This photo, taken last October, shows the beautiful fall foliage.

My tree is a close relative of the pistachio tree that produces the edible nuts many of us love. The Chinese pistache tree produces fruit which is inedible to humans but beloved by birds. Every other spring, female trees produce inconspicuous greenish flowers, followed by reddish purple berries, most of which are infertile. If fertilized by the pollen of a male tree, the berries will become black. Another good thing is that Chinese pistache pollen is non allergic. My tree has never produced berries, so I am thinking it is male, though maybe it is still too young to produce fruit. Male trees are reported to have better mature form, and many of the Chinese pistache trees available in nurseries are male. So I think that is what I have. Eventually I will know for certain. 

A member of the sumac family, Chinese pistache trees are adaptable to a variety of soils and will grow in hardiness zones 6-9. They can grow up to forty feet tall and wide, and the oval to rounded crown provides medium to filtered shade. It is a very long lived tree. The average Chinese pistache will live over fifty years, but some specimens have lived for hundreds of years.

The Chinese pistache is on a lot of 'Recommended' lists for good reason, but be aware: in some parts of the country, particularly Texas, it is considered invasive. Fortunately, that is not a problem for me, and I am happy to see my gawky adolescent grow up!