Miracle fruit doesn't like strong direct sunlight. Mine shed most of its leaves when I gave it some direct afternoon sun. You may also be underwatering it. I have lots of peat moss in my container grown miracle fruit but I still water it at least once a weak. I don't have it in a greenhouse however and I also don't have any humidity dome over it.
Simon

Pine Island nursery also recommends no direct sun. But I've left my plant in full afternoon sun and it grows fine. So I don't really know what it prefers. I also keep the medium moist, never letting it dry out. Try some liquid fertilizer like fish emulsion, 1 TB/gallon.

-Tom

Check the pH again. My plant did the same thing when my pH meter broke and the pH got too high. :/ a quick check can do no harm.

To get mine to grow I had to put a tablespoon of phosphoric acid (Ospho available at the hardware store) per 5 gallons of rainwater to get a 4 pH(tested with pH paper)for watering. They thrive then. Blood meal is the only nitrogen fertilizer I use. The pool chemical pH Down should also work.

Here is a link that might be useful: mrtexas

Forgot to mention, they like water. Best to water every day.

Coffee grounds are good which I use, commercial fertilizer is death to miracle fruit. I know, I've killed many a plant until I started watering with rainwater that I lowered the pH and blood meal only for fertilizer.

When the air conditioning goes off here in SE Texas in November the miracle fruit trees go in the house and they go back outside when the air conditioning goes back on in April.

Good luck with miracle fruit trees. They are the most challenging plants I have ever grown.

I have a question regarding my plant. I can't seen to drop the ph from a neutral (7) . As of right now my mixture is 70 % Peet moss and 30 % perlite. I water them with bottled water which was left out. its been 6 days and tye ph has not dropped. I bought 2 ph readers thinking one is off but both are identical. Please help me.

Mrtexas,

I am taking your advice by using blood meal, as I cannot seem to find anything in my area to use. Mine looked like it last year and I believe because I didn't have the fertilizer it did not produce. But I'm curious what did you do for the bone meal how much did you give it and in what intervals?

Thank you,

Melissa

What I meant to say was mine looked like it was going to produce last year but I didn't have the fertilizer so I assume that's why it did not grow a single Berry.

Aloha,

I came across this site and took notice everyone sharing stories concerning their Miracle Berry Plant. I am also new to growing this interesting plant. Now, living East Coast in Zone 8b which I have to baby my plant as its more of a tropical plant and will not survive the weather out here. Currently my plant is in a 5 gallon container with 80% Peat & 20% Perlite. It's stored indoors on a partly sunny patio and during winter its in a double wrapped clear plastic bag fully covered. Unsure about fertilizer but did a solution mix with Fish emulsion and distilled water. I didn't want to take any chances with tap water due to chemicals or any type of water treatment kit from Home Depot. I just went and bought a gallon of Distilled Water from my local Walmart store which seem to work a lot better. I usually water mines from the bottom of pot over top watering. But will look into Blood Meal as it's not as potent in smell over the Fish Emulsion bottle. Thanks for any feedback greatly appreciated. Mahalo