Care and Expectations for Dendrobium bigibbum / Vappodes phalaenopsis

[DanielBear]

In February, my coworker gave me a keiki from her orchid . She brought the plant in to work, and with a web search I decided it was a Cooktown orchid. She told me she rescued this from a friend. I don't know how someone gets hold of Cooktown orchids, they seem uncommon here. The flowers and canes looked very much like web photos of that species, although the plant was small, about 6 inches tall in bloom.

I planted the keiki in a commercial bark-based orchid mix, and have been watering it with the weakly-weekly method using Schultz Orchid food, 19:31:17 with 1/4 teaspoon per gallon of rainwater.

After about 2 months of adapting (or dormancy?) it's been growing nicely, the original 3 inch tall keiki is now more than a foot tall, and a new growth has emerged at the soil level and is larger than the original start . - It looks a lot like a reedstem epidendrum but some of the web pics also look like that. It is in a South window that does not get noon sun.

It's hard to find much about growing this orchid outside Australia. It's growing great as far as vegetative growth. I'm wondering if I should make some changes to encourage bloom, or if it's too young to expect bloom for another year? Should I quit the fertilizer, and if so, when?

Thanks for any advice.