A traditional beverage of the Native Americans of the northern plains, anise hyssop is related to mints and hyssop. Yes, really. Bees love it too. The tall spikes of purple-blue flowers can grow a metre high given full sun and good soil. You can start it from seed and use both leaves and flowers for tea.
Echinacea: Buds for immune support.
Milk thistle: Buds for detoxification.
Angelica: Root for digestive support.
Catnip: Leaves for calming.
Raspberry: Leaf for female reproductive support.
Lavender: Buds for calming and soothing.
Nettles: Leaf for detoxifying and nourishing.
Red clover: Buds for purifying and detoxifying.
Dandelion: Root for liver support and a blood tonic.
Lemongrass: Stalk for calming, relaxing digestive.
Whether they work or not, your guess is as good as mine. There’s plenty of evidence to suggest they do. And whatever their efficacy, they’re interesting to grow, fun to process and good to drink.