How to Care for Tulip Trees
According to the Arbor Day Foundation, tulip trees thrive in hardiness zones 4 through 9, which covers almost the entire continental U.S. These trees generally grow quickly, at a rate of about 2 feet per year, and can reach heights of 70 to 150 feet in the forest and 40 feet wide at maturity. Tulip trees grown rurally are still large, but commonly grow only up to 90 feet tall. Tree trunks can often measure greater than 7 feet wide. Tulip tree flower petals are also large, frequently 3 to 8 inches long. According to Britannica, the tulip tree will reach full stature at about 200 years old.
Tulip trees thrive in full-sun conditions and prefer at least 6 hours of direct, unfiltered sunlight each day, suggests the Arbor Day Foundation. Plant tulip trees in acidic, well-draining soil. Although the tree prefers normal moisture levels, it can tolerate drought in locations with high humidity.
Tulip trees bloom in two different colors: yellow and pinkish purple. The yellow flowering variety is often known as the Yellow Poplar (although it is not a true polar), whereas the pinkish flowering variety is commonly known as the Pink Magnolia, Chinese Magnolia or Japanese Magnolia. Both trees are part of the Liriodendron Tulipifera classification. Tulip trees commonly bloom in late spring, around May or June with fruit maturation commonly in September through October.
Many historical figures have had a relationship with the tulip tree. According to the Arbor Day Foundation, George Washington planted tulip trees at Mount Vernon, and Daniel Boone used the wood of the tree for a canoe.
How to Plant
Plant the tulip tree as you would any other bare-root plant.
- Remove the plant from the packaging and examine roots for damage. Use a sterilized, sharp knife to remove any rotten pieces.
- Protect the roots from drying out, but avoid soaking them in water for more than 12 hours. Consider soaking burlap in water and covering the roots to keep them moistened.
- Dig a hole that about the same size as the root system, and at least 1 foot wider than the original container or packaging.
- Set the roots on a firm mount of soil and gently spread the roots to help grip the soil it was set on.
- Fill the hole about ¾ full with remaining soil, water, and then press the soil in by hand to create a firm hold.
- Re-water and add remaining backfill soil, but do not tamp down.
- Form a circular basin about 2 to 3 feet wider than the diameter of the hole to help keep adequate moisture levels; fertilize with a 20-20-20 mix.
- Water, and allow it to soak down fully; this allows soil to settle.
- Add mulch to retain moisture. Do not fertilize until after the next growing season.
Although tulip trees can withstand drought in areas with higher humidity, newly planted trees should be watered regularly to help the root system to develop properly. Once the tree is established, you need not water the tree as much. Fertilize the tree before the new growing season.
Pruning is essential due to the rapid growth of this tree. Prune dead wood and weaker limbs in later winter or early spring. Thin the tree about every other year to promote overall health.
Due to their massive size, tulip trees make a great addition to parks and rural homes. Avoid planting tulip trees in urban landscapes as they may overpower a smaller home.
Although the tulip tree is not native to California, many tulip trees have been imported to the state as a lining of streets.
Observe tulip trees for “scale” an insect that can invade the tree. Not only does scale deform the tree, it can cause an unsightly dripping sap that can damage cars.
In addition to ornamentation, there are many other uses for the tulip tree. This large hardwood tree is often used for things such as furniture, cabinets and musical instruments. Due to its size, the trees were often used as canoes.
Although the tulip tree is relatively pest free, it is susceptible to scale when left untreated. Planting too many of the same tree so close to each other can exacerbate issues, so consider limiting the number of poplars in any given area.
Due to their extreme height, tulip trees may attract lightning, suggests the University of California Agriculture & Natural Resources.
Tulip trees thrive in well-draining soil, and like other trees are susceptible to root rot when exposed to too much standing water.
Arbor Day Foundation: Tulip tree
Monrovia: Tulip Tree
SF Gate: What is a Tulip Tree?
Britannica: Tulip Tree
University of California Agriculture & Natural Resources: Tulip Tree
Missouri Department of Conservation: Tulip Tree
Purdue Extension: Planting Landscape Trees and Shrubs