Adults and children aged 3 to 12 both pay AED 50; under-3s go free. Prices are on the official site's own booking page.
The official combo covers Dubai Miracle Garden and the Butterfly Garden for AED 140 total, pricing the Butterfly Garden part at AED 40 instead of AED 50, a saving of 20%, and that part of the combo stays valid for 3 months from the date of purchase, regardless of the Miracle Garden date chosen.
Our price for the Butterfly Garden ticket alone is on the card above, with our cancellation terms.