Anyone have an idea to make it bloom?

Jul 12, 2007 Last reply: 19 years ago 1 Replies

Need some ideas from you vanda types.


5 years ago I purchased two Aranda Floraweb plants (Arachis flos-aeris x Vanda Emma van Deventer). Not something you see around much. These plants are 40+ years old from the Singapore Botanical Gardens. Both plants were 5+ feet tall....big guys. Both plants had previously bloomed. They had been neglected and needed some TLC.

I cut them back to reduce the naked stem length and put them in fresh vanda baskets. Each year I would hang them outside in a crepe myrtle tree in my back yard and they would grow and look very happy when they came back into the greenhouse in September. In the greenhouse during the winter they kind of stopped doing anything....no decline but they seemed to just sit up high in the light and wait for the next summer to arrive.



No blooms. The larger one is reaching 5 feet tall again and the other is about 3 1/2 feet. I have to sit it on the ground to see into the crown!



This year I bought a bag of red lava rock from HD and took one of the plants out of the teak baskets (it was falling apart) and placed the plant in a 12 inch clay pot (a big pot) and placed the lava rock around the base. The other plant I just put the lava rock in the basket. In May I put both plants in full sun on a bench. To give them more sun would require putting on the room of my house!



The larger plant in clay pot is responding well sending out really nice roots. The smaller one looks good but the larger one is really shining. I fertilize each week when the other vandas get their squirt of MSU.



SO the question....Does anyone grow anything closely related to this cross who has bloomed it? Any other suggestions?



BTW...the remains of the old flower spike was over 5 feet long so besides being an old plant I expect it to be an awesome show. Extra bonus points if I could get to to bloom in time for the October show. I don't know when to expect it to bloom.



Good Growing, Gene



This is indeed a puzzle; most plants that large and mature will adapt even to less than ideal conditions in 5 years or less ...

Give as much light as possible, esp. in winter. Cut WAY back, or eliminate altogether, nitrogen fertilizer during the fall and winter months, starting a month or two before you have to bring them into the greenhouse [more-or-less in keeping with previous reply, except that I'm not a big fan of the traditional bloombooster formulas, either].

Another avenue for inquiry/research, since I don't know the answer, but it sounds like temperature might also play a role. Your note that the plants seem to "stop doing anything" in winter suggests that your minimum temp might be too low (we heat to 55F but have had some vandas that suffered even at that) -- or possibly there's not enough diurnal change in the temp while they are inside???

Good growing, Kenni

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