Xanadu Philodendron 'Winterbourn' Plant

The assigned Xanadu philodendron is also encountered under the name Winterbourn, with sources varying in their taxonomic treatment of that name. It forms a dense, evergreen clump with glossy, deeply lobed green leaves rather than a climbing stem. ## Form and placement North Carolina State Extension describes Xanadu as mounding and spreading, about 3 to 5 feet tall and wide, and suitable as a houseplant or in warm-weather landscapes. The RHS profile uses the name Winterbourn and lists Xanadu as a synonym, with mature size ranges that can be larger; allow generous room for the foliage. [North Carolina Extension profile](https://plants.ces.ncsu.edu/plants/philodendron-xanadu/) · [RHS profile](https://www.rhs.org.uk/plants/386883/philodendron-xanadu/details) ## Growing conditions Outdoors, grow it in full sun to partial shade in rich, moist but well-drained soil. Indoors, give bright indirect light and warmth; avoid waterlogged potting mix, since overwatering can yellow the leaves. North Carolina State lists USDA hardiness zones 9b through 11b, so cooler-climate gardeners should grow it in a container and bring it indoors before cold weather. ## Maintenance This is a low-maintenance foliage plant once established. Remove aging leaves at the base, monitor for common indoor pests such as scale or spider mites, and repot container plants when roots fill the pot. Keep it away from pets because philodendron foliage can be harmful if eaten.