Posted: 23/09/2015 at 19:07
Hi Patricia, there could be many reasons, but here's a couple to think about
As you've planted it into the ground after being pot bound, it may not have settled very well. Often plant roots will continue to go round in a circle rather than spreading out into the surrounding soil, so they need a bit of teasing out when planted. Also, they need lots of water, so it's important to keep them well watered until established. If the ground it's in dries out rapidly, it would benefit from some well rotted manure and good compost to help retain moisture. A mulch, after the initial thorough watering, will also assist.