Bifrenaria harrisoniae is native to Brazil, around Rio De Janeiro. These plants grow on almost vertical, rocky cliffs, facing east, at a height of 200-800 m. They are exposed to strong winds and full sun...
Bifrenaria harrisoniae also called as Harrison's Bifrenaria, Bifrenaria aurea, Bifrenaria harrisoniae f. alba-plena, Bifrenaria harrisoniae var. alba, Bifrenaria harrisoniae var. alba-plena, Bifrenaria harrisoniae var. angustior, Bifrenaria harrisoniae var. buchananiana, Bifrenaria harrisoniae var. citrina, Bifrenaria harrisoniae var. eburnea, Bifrenaria harrisoniae var. flavopurpurea, Bifrenaria harrisoniae var. glabra, Bifrenaria harrisoniae var. grandiflora, Bifrenaria harrisoniae var. insularis, Bifrenaria harrisoniae var. minor, Bifrenaria harrisoniae var. pubigera, Bifrenaria harrisoniae var. purpurascens, Bifrenaria harrisoniae var. typica, Bifrenaria tyrianthina var. albescens, Colax grandifloras, Colax harrisoniae, Dendrobium harrisoniae, Lycaste citrina, Lycaste harrisoniae, Lycaste harrisoniae, Lycaste harrisoniae var citrina, Lycaste harrisoniae var. eburnea, Maxillaria barringtoiae, Maxillaria harrisoniae, Maxillaria harrisoniae var. angustior, Maxillaria harrisoniae var. eburnea, Maxillaria harrisoniae var. grandiflora, Maxillaria pubigera, Maxillaria spathacea, Stanhopea harrisoniae, Stenocoryne harrisoniae, is a species of the genus Bifrenaria. This species was described by Heinrich Gustav Reichenbach in 1855.
IDENTIFY BIFRENARIA HARRISONIAE
Bifrenaria harrisoniae is native to Brazil, around Rio De Janeiro. These plants grow on almost vertical, rocky cliffs, facing east, at a height of 200-800 m. They are exposed to strong winds and full sun. Their roots are buried in rock cracks where there is only debris, and there are few nutrients.
It is a medium sized, warm growing epiphyte or occasional lithophyte, which reaching 25-41 cm in height, with broadly ovoid-pyriform, angled, deeply sulcate, 5-9 cm high pseudobulbs carrying a single, apical, elliptic-oblong, suberect, subacute or obtuse, thin-textured, plicate, 18-31 cm long and can be 13 cm wide leaf.
Harrison's Bifrenaria blooms in the early summer on a short, basal, racemose, semi-erect, shorter than the leaves, bracteate inflorescence carrying up to 2 fragrant flowers arising on the most recent pseudobulb often with two inflorescence on each. The flowers with a length of 6-8 centimeters have a waxy surface, are persistent and strongly smell. The oval-oblong petals of the perianth are decomposed, and the upper petal is smaller and concave. Flowers are usually white, but they can also be yellowish or greenish-yellow. The big lip is three-lobed, covered with hairs, deep purple or red-brown, with darker veins.
BIFRENARIA HARRISONIAE CARE AND CULTURE
Cultural information should only be used as a guide, and should be to be adapted to suit you. Your physical location; where you grow your plants, how much time you have to devote to their care, and many other factors, will need to be taken into account. Only then can you decide on the cultural methods that best suit you and your plants.
Light:
Bifrenaria harrisoniae needs a light level of 30000-45000 lux. Because they grows on exposed cliffs to the east, it is advisable to have full morning sunshine and shading in the afternoon.
Temperature:
A thermophilic plant. The average temperature in summer day is 25-27 °C , night is 19-20 °C , which gives a daily amplitude of 6-7 °C . In winter, the average daytime temperature is 21-22 °C, while at night 14-16 °C, which gives a daily difference of 6-7 °C.
Humidity:
Harrison's Bifrenaria needs the humidity of 75-80% throughout the year.
Substrate, growing media and repotting:
Bifrenaria harrisoniae grows well attached to slats or openwork containers, with high humidity and adequate amount of water is ensured.
Adult plants do not like changes, so repotting should only take place when it is necessary, and only when new roots begin to grow.
Watering:
During the growth period, the plants requires moderate watering. The leaves on new increments should not be wet, because they rot very easily - they should never be fogged.
Fertilizer:
During the period of strong growth, the plants should be fertilized every week with 1/4-1/2 of the recommended dose of fertilizer for orchids. After developing a new growth, use fertilizer with lower nitrogen content and higher phosphorus, so that the new growth will strengthen before winter and to stimulate flowering in the next season.
To avoid the accumulation of mineral deposits during periods of strong fertilization, it is recommended to rinse the containers approximately every month.
Rest period:
During the 2 winter months, watering for Bifrenaria harrisoniae should be limited to sprinkling from time to time or light watering, and fertilization eliminated. When new growth begins, normal watering and fertilization are gradually restored. In winter, the pseudobulbs should shrink and even dry a little.
COMMENTS