Hungarian Yellow Wax Pepper Seeds (Hot Type). Hungarian Yellow Wax is moderately hot pepper. This dwarf bushy plant grows about 45 cm (18″) high and is a prolific producer. Peppers are about 15 cm (6″) in length and about 5 cm (2″) thick at the shoulder before tapering slightly to the bottom. The fruit ripens from a waxy yellow to bright red at maturity and contains firm, pungent flesh. Yellow wax is a favourite for frying and makes a very pretty pickled pepper! Excellent fruit set in cooler weather makes this a good selection for northern gardeners.