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You did well, staking is needed when basil plants are drooping. Once they get a little stronger and hardier they will stand on their own. Happy healthy basil is an upright bush. when too many plants are planted together they don't do that well, but they can recover and get healthy in a bigger pot, and keep them tied up to train to upright position. 

You may consider moving your plant to even bigger pot once the plants get stronger. My single basil plant would usually take the whole 5 gal pot by the end of the summer, when I empty it after the frost, the whole pot is all roots. Basil will do OK for a while in smaller pot, but will really thrive in a large one. But don't transplant until it recover from the previous transplanting.

Good luck!