Florida Aquatic Nurseries grows Aponogeton ulvaceous. Aponogeton ulvaceous is an aquatic bulb plant native to the island nation of Madagascar along with many of the other Aponogetons used in the Aquarium plant trade. Aponogeton ulvaceous is an excellent aquarium plant as the central focal point in a planted aquarium displaying long green leaves that have undulated margins. Aponogeton ulvaceous are bulb plants and will sometimes go dormant to the bulb stage of the plant. Just be patient and new leaves will begin to sprout. Sometimes it is helpful to take the bulb out of the aquarium for a resting period and keep it stored in moist sand until leaves begin to sprout. Then plant the Aponogeton bulb back into the aquarium.