Even if you are averse to gardening then still go. You will come away wondering what your problem is. Having had the good fortune to see many Botanical Gardens in the World Kirstenbosch is a cut above the rest. Don't ignore the internal gardens adjacent to the main entrance as they give you a view of the worlds flowers in one place. Go off the main tracks down the side paths to find the unexpected. Go have a history minute and view the hedge planted by the Dutch. Even the shops and the restaurant are worth a visit. If you can time your visit for the South African Summer take in the Concerts in the Outdoor Amphitheatre.