It's too hot! Take them out of the GH, put them in a spot in the yard that gets lots of light and air circulation. When temps are high they do dormant.

Brighamia insignis is a spider mites magnet, look for them also.

Jack,
They're getting California treatment but they're Hawaiian plants - as Keith mentioned, more water and air circulation. They don't need to be in a greenhouse now.

For what its worth, I grow mine outside in Santa Monica with full early morning sun, changing to dappled mid-day sun, and full shade by afternoon. It still has lots of yellowing leaves and the new ones are significantly smaller than the old ones... It gets lots of water, more than just about anything else I grow, and is in a pearlite/coir soil mix that it originally came in.

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Lots of yellowing leaves, and the new growth is less green and generally smaller.

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When I first got it everything was big and green. It has gotten significantly fatter though, so really I'm not complaining. I just wish it looked a little less ragged!

Come fall the leaves will green back up and stay that way till the spring, then yellow up again during the summer.

When is a good time to repot? I'm guessing spring or fall...

I did mine in the early fall last year

I may be in trouble here, I live at Lake Isabella and on some days the greenhouse is cooler than the ambient air. It has an efficient swanp cooler. I am relying on the greenhouse for humidity because outside it can be 110 and 10% humidity. Perhaps the answer is to have the cooler come on at a lower temp. That I can do. The suggestion that conditions are too hot for B. i, sounds right. We will see. Thanks for the help.

Try moving the plant closer to the cooler and giving it some shade, can handle those temps easier if it's not in direct sun.

Jack,

I have a fairly large one stuck in the same plastic container for years. From May until September/October, it stays outside in my small backyard, and it seems to do well inspite of short, cold summers with frequent rain(Northern Europe).

Regards,

Martin

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