A garden support system according to one embodiment includes a plurality of support poles having a generally elongated pole body. At least one of the support poles has a first end that includes a tapered portion for insertion into a support medium. The system includes a plurality of alignment members for joining the support poles in a grid arrangement for supporting at least one plant. The alignment members each have a pair of channels each for receiving a corresponding support pole therein. When the alignment members and support poles are joined, the alignment members hold the support poles in place by a friction fit between the respective pole bodies and channels and permit adjustment of the grid arrangement by sliding an alignment member along a corresponding pole body.