Add the chickpeas, onion, carrots, bell pepper, zucchini, diced tomatoes, and garlic to the slow cooker.
Stir in the cumin, coriander, cinnamon, paprika, and ginger until the vegetables are evenly coated.
Pour the vegetable broth over the mixture and add the chopped apricots. Stir once to combine.
Cover and cook on low for 6 hours or on high for 3 hours, until the vegetables are tender.
About 10 minutes before serving, prepare the couscous according to package directions using boiling water.
Fluff the couscous with a fork and divide it among four bowls.
Spoon the chickpea tagine over the couscous. Top with fresh cilantro and serve with lemon wedges.