Mainly Amaryllids Garden

Mainly Amaryllids Garden

Sat Aug 19, 2017 21:58:40

"A conservation garden for Amaryllid species and Hybrids"

















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Mainly Amaryllids Garden - A Mail Order Conservation Garden.

The Exquisite and Curious Genus - Giffinia

 

It is my pleasure to be able to bring you the magnificent Amaryllids from Brazil. The cultivation of Griffinia species here in Australia is in its infancy. Very few Amaryllidaceae collectors have had the opportunity to cultivate such a rare treasure! I am please to announce that 3 new Griffinia species have been made available to the Australian home gardener. Griffinia liboniana, Griffinia aracensis and Griffinia espiritensis var. espiritensis. Keep them away from the from and too much light. They are a deep forest plant and prefer shade and peat/humus based growing mediums. I have more notes on cultivation on the bulb list ) I have also added two more images below (Griffinia hyacinthina and Griffinia parviflora ex south Bahia) to aid you in seeing the beautiful diversity in the genus. I hope that you will come to admire these bulbs as much as I do. And yet again, another Genus under threat, so conservation is a must! Have a great day,  Dash.

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The following article has been adapted (addition of images) by kind permission of Kevin Preuss.

Griffinia, critically endangered Brazilian geophytes with horticultural potential, make excellent containerizes plants for the greenhouse, or shade house (in USDA zones 9 & 10). In Brazil, Griffinia can be seen cultivated in gardens and containers. Cultivation of these tender bulbs outside of their native range requires particular requirements. Bulbs should be planted in a well draining medium with the neck below the surface. Plants should be kept under deep shade (approx. 90% shade) and kept moist and warm (above 55 F) preferably in the upper 60's F to upper 90's F for optimal growth.

The small, blue-flowered Griffinia, also called Caricia by some Brazilians, are elements of the primary rainforests of eastern Brazil. In their native habitats, they grow in deep shade provided by the multiple layers of the canopy. Humidity levels are generally high and temperatures typically in the range of 25-35 C. Flowering periods are variable among species. Plants flower freely from spring through autumn. The small, blue-flowered plants do not experience a dormant period. However, leaf senescence may occur in autumn in some plants. The large, blue-flowered Griffinia from Rio de Janeiro and São Paulo experience cooler temperatures in the winter and can undergo a brief dormancy period in the summer heat. The white-flowered Griffinia of subgenus Griffinia seem to have evaded cultivation (at least outside of Brazil). The large, white-flowered Griffinia of subgenus Hyline occur in the semi-arid regions of northeastern and interior portions of Brazil. Little is known about these rare species (G. gardneriana and G. nocturna). They are nocturnal bloomers with a fragrance, but, unfortunately, the flowers are ephemeral, opening in the evening and closing the next day. The plants may to go dormant in the summer, and are very slow to offset.

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Griffinia hyacinthina       

 

Griffinia parviflora ex south Bahia

Propagation

Breeding Griffinia is similar to breeding many other Amaryllids. With the exception of one form of G. aracensis from Bahia, Griffinia is neither self compatible or apomictic. Once fertilized, seed production takes about 6-8 weeks. Once the capsule splits and the seeds drop, they are fully mature and ready to plant. Place seeds on top of the soil. Germination takes about 6-8 weeks. Plants require 4-6 years to reach flowering size.

Bulbs offset either by the production of daughter bulbs arising from the basal plate (e.g. G. parviflora, G. hyacinthina, G. noctruna, G. liboniana, G. aracensis, and G. rochae) or by the production of bulbils on root-like structures (e.g. G. espiritensis). Offsets require about 3-5 years to reach flowering size.

Article by Kevin Preuss, http://home.tampabay.rr.com/griffinialand/index.htm

 Growing Griffinia in Florida (from the IBS quarterly journal BULBS)

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