You will get almost a 100 percent germination on good seed.I think A.alexandrae is a nicer looking palm but cunninghamiana can be nice to if kept out of full sun and the wind. It flowers in midsummer and has evergreen foliage.. Its flower colour is violet and the red fruits are attractive to birds. Indoor? The king palm (Archontophoenix cunninghamiana) is a tropical plant native to Australia. Provides a classic and inexpensive tropical look, particularly if planted in clumps in which the palms can arch away from each other. ... (Archontophoenix cunninghamiana). Trunk: Solitary, smooth, ringed of a uniform diameter with noticeable leaf scars. Archontophoenix cunninghamiana (Bangalow palm, king palm, Illawara palm, piccabben, piccabeen) is an Australian palm.It can grow over 20 m tall. Search by Plant Name. Cold Tolerance: Young palms can be killed by cold if the temperature gets below 25F. Growth Rate: Archontophoenix cunninghamiana can grow up to 40 ft tall and 10-15 ft wide. Photo by Flickr.. This palm is great for USDA Zones 9b (25 to 30 F) to 11 (above 40 F). King Palm Tree (Archontophoenix cunninghamiana). Archontophoenix alexandrae – Alexandra Palm 200mm $ 40.00 $ 35.00 Add to cart; Sale! Although it is a little more resistant to cold than Archontophoenix alexandra , it requires similar growing conditions. This is a very similar palm to Archontophoenix alexandrae in both appearance and size. archontophoenix cunninghamiana (Seaforthia elegans) A better, hardier Archontophoenix for many Florida gardens. Frond leaflets are broader than those of Archontophoenix alexandrae, trunk is less swollen at base. Symptoms and Biology: Symptoms of pink rot are variable and include spotting and rotting on nearly any part of the palm. The King Palm Tree, scientific name Archontophoenix cunninghamiana, is one of the most popular palms in tropical and subtropical climates.The King palm looks very nice when planted in a grouping of 2 or 3. Archontophoenix cunninghamiana It usually grows quite near the coast in damp, woody areas of Eastern Australia up to 1000m. They do like more water than most palms, with some even thriving in poorly drained areas. Flowers are lilac. I have several different archontophoenix and they all are nice looking palms and tougher than people say.They can grow indoors with good light and humidity helps. These palms can be grown in full sun (if kept well watered), or in the shade. Mature plants may take brief periods of 28F. Hosts: Pink rot can affect nearly all outdoor landscape and indoor palms in California, including king palms, bamboo palms, some date palms, Chinese windmill palms, kentia palms, queen palms, and California fan palms. But it is more cold-tolerant. Outdoor/Indoor Use: Both. Crownshaft: The base of the petioles form a greenish-yellow to brown crownshaft that the leaves rarely droop below. Archontophoenix cunninghamiana – Bangalow Palm 140mm $ 25.00 $ 20.00 Add to cart; Beaucarnea Ponytail Kokedama $ 85.00 Add to cart; Sale! Where indoor plants are concerned, “less is more” is a motto all of us would be advised to heed. Description: Archontophoenix cunninghamiana is a slender arborescent Australian palm that can grow up to 25 metres tall (or more). This sun-loving palm is mostly used outdoors, but it also makes an excellent house plant if given the right environment. Archontophoenix cunninghamiana is one of the most commonly planted palms in southern California and very widely available at many common nurseries.