HOW TO GROW PHALAENOPSIS(MOTH)ORCHIDS 

 


phals

 

 


Gorgeous phalaenopsis blooms can 
last for months 

HOW TO GROW PHALAENOPSIS ORCHIDS
Moth orchids, or phalaenopsis, are among the easiest orchids to care for, flower profusely, and can be grown on a windowsill. Most orchid suppliers sell a large variety of moth orchids to suit all tastes. Read on, to find out how to take care of your moth orchids and you'll have flowers to enjoy year after year.

Part III of this growing guide

Go to  Part I and Part II


 


A beautifully flowered specimen of Phalaenopsis amabilis, a species which has been used to breed our modern white hybrids. The flowers shown are on two spikes on ONE compact growing plant!  

REPOTTING   Repot plants about every 12-18 months, or when the mix decomposes. Use a mix of 2/3 medium fir bark with 1/3 coarse perlite, or a mix especially formulated for phals. Carefully remove any dead mushy roots, but be sure not to damage any roots that are firm and white.  Also be careful not to break the roots when you repot. Remember, an orchid is only as good as its roots and these tend to grow slowly. 

 Repot the plant in a slightly larger pot if needed. Remember that most orchids like to be somewhat pot-bound. Make sure the base of the plant is just at the surface of the potting media, not buried, and that the plant sits firmly in the pot. Keep plants more shaded than usual for a few weeks while they adjust.  Healthy roots tend to be  firm and white with green growing tips. Dry, brittle roots indicate underwatering. Soft, mushy, or decayed roots most likely indicate overwatering.

PESTS AND DISEASES   Most insect pests can be gently washed off, or swabbed with alcohol. Mealy bugs and scale are especially fond of phalaenopsis and like to hide in the leaf axis so examine these carefully.  If necessary, use an insecticidal soap or fine horticultural oil formulated for orchids, after reading all directions and warnings carefully. Moth orchids but are susceptible to bacterial and fungal infections which can result in brown spots or rotted areas on leaves, which can quickly lead to the demise of plants. 

Carefully cut out infected tissue at the earliest sign of infection with a sterile blade, and spray plants with a fungicide/bactericide such as Physan. Sprinkling the affected areas with cinnamon will also help. Good culture will eliminate most problems. Among the most important  are i) maintaining good air circulation especially in very humid weather and ii) making sure foliage is dry by nightfall. 

A wide variety of  phalaenopsis similar to the ones shown below are available from online orchid vendors

The two phals pictured below to the left with the spots and blotches  are know as harlequin phals. These are relatively new hybrids that are becoming more available. However, they tend to have smaller and fewer flowers than standard white or pink phalaenopsis, like the third one from the left below, but what they lack in number they make up for in impact. 


Many phals  make excellent cut flowers 
and can last more than a week in water. 
See photos of  orchids in floral arrangements. 

 

 


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