Answer: Dwarf fruit trees are perfect for growing in containers. Choose a large (half-barrel) container and make sure it has lots of drainage holes in the bottom. You can fill it with straight potting soil or a 50/50 mixture of potting soil and garden soil. I wouldn't use plain garden soil - it can dry out and be really hard to rewet. The potting soil or potting soil mixture will allow good drainage as well as hold a fair amount of moisture to make the roots happy. Plant so your trees are at the same soil level as they were in the nursery pots and keep them well watered. Citrus trees grow best in full sunshine, with moist soil, so water often enough to keep the soil from drying out. If your tree is very small you can plant it in a smaller container with the expectation that you'll move it up to larger and larger pots as it grows, eventually planting it permanently in a half-barrel. Plants in containers should be fed with a water soluable plant food diluted at half-strength and applied every 3-4 weeks so you don't run the risk of over feeding and burning the roots. I use Miracle Gro or Peter's houseplant food and make a half-strength solution to feed my containerized plants.
Best wishes with your new lime tree!
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