Gotta clear up the drainage issue first. Open the holes up a bit and get holes closer to the outside edge of container to collect the free flowing water that runs down the sides, particularly in a rainstorm. Doesnt matter how many holes there are if they are all plugged up with compacted soil. Also, if you can get the plant out, you should throw in a few inches of a well draining mix in the bottom. Maybe even a layer of crushed stone. This will get the soil line closer to the top of the container. Right now it looks like you have about 4-5 inches of space between the soil line and the top of the container. That collects alot of standing water. I'd also put in an inch or two of mulch, which will help absorb excess water and shed rain away. Just my $.02