I've planted them in pots on my patio. When I placed the pot into direct sunlight (afternoon only), all the beginning leaves bent over. When I saw this, I moved it away from direct sunlight and put it back in the corner where it will be guarded from direct light. What kind of "stakes "should I buy to help them grow up straight?
Certified GKH Gardening Expert
Varieties that are smaller are more suited to containers.
Supports are generally needed for the flowers.
Gladiola do need full sun, I think the bending over is due to the height of the plants, not the light conditions.
Here is an excellent article that will help you with container Gladiola.