Your Phalaenopsis orchids have begun spiking, and there is a lot of excitement and anticipation of a good bloom display. Why not? After all, your hard work and dedicated care is bearing fruits (in this case, flowers). But before you consider your job well done, there is more care to be taken at this stage to ensure you have a beautiful bloom-laden display.
Read on to follow these time-tested tips that will help you bloom your orchids successfully. Subscribe to the blog for regular updates on orchid care.
Developing spikes are a testament of the good care you have given your orchids all along. If you are not sure whether the new growth on your phaaenopsis orchid is a spike, then my previous post on identifying spikes in phalaenopsis orchids will help you with this.
Special care needs to be taken of these bloom spikes till they develop into blooms. When the spikes grow up to a few inches long and becomes thick and strong, you can train it to provide a display of your liking. If you prefer a more natural look, then you can allow the spikes to grow arched forward in the direction of light.
While these displays look beautiful, these are more suitable for spacious grow spaces and display areas. If your orchids are too closely spaced, then there is a risk of damage to the flower spike when you shift them or water them.
Also, if the blooms are large and the spike gets weighed down, there is a chance of the orchid tipping over. This can however be countered by placing the orchid inside a heavy ceramic pot. This will make it more stable and reduce the risk of tipping over and damaging the spike.
Alternatively, you can try staking the orchid spike. Once the spike grows to about 4 to 5 inches tall, it thickens out and becomes strong. At this point, you can consider training the spike to stand upright. The advantage of this arrangement is that it occupies less space and the risk of breaking a spike accidentally is reduced considerably.
Training the spike
To begin training the spike, you need to insert a stake vertically upright and with the help of a string, chord or flexible metal wire, you can bring the spike closer to the stake. Wrap one end of the chord or wire to the stake and make an adjustable loop that can be tightened as desired. This will exert minimal pressure on the spike and prevent it from snapping. Every one or two days, tighten the loop so that the spike gets closer to the spike.
When the spike touches the stake, you can remove the loop and attach the spike to the stake with the help of a tiny clip. Ensure that you do not press the stake with the clip and that the spike is loosely held to the stake. Also take utmost care that you do not place the clip on a node as it might prevent buds from developing from that node.
At this stage, the plant’s nutritional requirements increase tremendously as a lot of energy is required to develop buds and good sized flowers. To ensure you get healthy blooms, you need to fertilize the plants regularly. Provide bloom boosters having a high phosphorous ratio. You can alternate it with NPK 20:20:20.
Also these new growths require a good supply of calcium and Epsom salt to provide a good bloom cycle. So ensure that you feed the plants with low concentrations of the same once a week during this period. This type of fertilizing will encourage branching of spikes and increased number of blooms.
Meeting light requirements
Light is an important requirement for producing blooms. Phalaenopsis orchids respond well to bright indirect light and produce a good number of blooms when they get adequate light. The spikes develop in the direction of the light so place the plant in a direction that will produce a great display.
Shifting plants and changing their position frequently will give you a twisted unattractive looking spike. The result will be that instead of getting a uniform display of flowers in the same direction, you will find staggered displays that look lop-sided, and are not pleasing to the eye.
Protecting spikes from sudden temperature shifts
Orchids in bud spikes or bloom are extremely sensitive to sudden temperature shifts. They immediately respond with bud blast, i.e. yellowing and drying up of buds. So ensure that you keep your orchids in place that maintains a temperature conducive for their development and avoid exposing them to air conditioning out door units, close to air vents and close to sunny windows. Even a short drive from the nursery to your home in your car in the afternoon heat can lead to bud blast. This can be very disappointing. It almost feels like not making it to the finish line. So do be cautious of exposure to such fluctuations.
Protecting from pests and fungal attack
Your year-long labour will be rewarded when you get beautiful healthy blooms. To successfully bloom your orchids, utmost care needs to be taken of the spike while it is developing. It is tender, soft and delicate, so many insects chew on the spike and buds. Snails, slugs and worms also chew on tender spikes and buds. Sometimes, the entire stem of the spike is chewed off, leaving behind a stump, which can be a terrible downer.
To prevent this from happening, you need to check for insect bites on spikes and treat the orchids with a home-made dilute insecticidal solution made from neem oil, baking soda and dish wash soap (proportion – 2:2:1 tsp for a litre of water) . This diluted solution needs to be sprayed every two weeks. This will keep most pests such as mealy bugs, spidermites, scale and other insects at bay.
Spray the entire plant in the evening before last light. Allow it to work overnight and risne with water to remove excess solution. This will also ensure the orchids do not get damaged in stronger light or temperature.
Armed with these simple tips, you can be assured of a wonderful bloom season.
Till my next, happy growing!