1. Home
  2. Question and Answer
  3. Houseplants
  4. Garden Articles
  5. Most Popular Plants
  6. Plant Nutrition

Oncidium producing new plant instead of flower spike


Question
QUESTION: Hi Wayne King,

Two months ago,I asked you about my Oncidium that never
bloom & kept on shooting out new plants. You suggested me to
move to the place which receive plenty of light.

I exactly follow your advice, I've move to the spot that got  
plent of light. Now , all leave are light green & new plant
are larger than its parent. I've stopped fertilizing it &
just do misting only with occasional watering as it is now
mature.

Today, I'm surprised that all these new plants again
shooting out small plantlets instead of flower spike.
I got no clue at all.

In this situation, what wrong with my Oncidium?

Thanks in advance,
Nwe Lay

ANSWER: First, congratulations on the well grown plant.  When it blooms it should have many flowers.  As the new growth reaches maturity, the plant should be rested.  You may not have suspended ferilizing the plant soon enough as it approached maturity so that it was responding with a new growth cycle.  Also, if you were feeding with a high nitrogen plant food, that too would have supported new vegetative growth.  Probably the best signal to the plant to flowwer is to suspend all feeding a month or so before the last growth has matured.  You may have continued watering and feeeding too long and, the result, was a new growth cycle.  Best thing to do now is support the new growth.  Give it about six months to mature, then suspend all feeding for the next bloom cycle.

---------- FOLLOW-UP ----------

QUESTION: Hi Wayne King,

Thanks for your reply.

Based on your reply, now I know why it has happened.
1) The spot is getting plenty of light as well as abundant
rain fall.  I can move to the place where there is no rain
at all but also receiving very less sunlight. During resting
period , the plant doesn't need light & water , is it?

2) The pot contains both new growths & about to mature
plants. Although, I carefully spray the fertlizier to those
new growths only without touching about to mature plants.
Anyhow I did they are in same pot so I think it also causing
new growth cycle. Shall I repot them so that mature & new
growth are separated(but it also a bit problem as they are
closely connected each other)?

So, I think above two caused me this growth cycle problem.

How to deal with these problems/

Thanks in advance,
Nwe Lay

Answer
Think of how this plant might grow in nature.  While the amount of light at the latitude where this plant grows naturally will not vary a great deal, there are wet seasons and dry seasons,  The dry season marks the start of the rest period.  During this period, the plant may receive water from mists, dew, etc but little, if any, rainfall. I would keep your plant together and continue to grow it as it would in nature.  Start the dry period in late October when you will cut back the watering to an occassional misting to keep the pseudobulbs plump.  No feeding at that time.  Pseudobulbs are storage organs to get the plant through the dry period and provides all that it needs. Blooms should occur in late winter/early spring.

Copyright © www.100flowers.win Botanic Garden All Rights Reserved