Liriodendron tulipifera yellow poplar, tulip tree
size/type
tall tree,tall tree
usual height
25-30m
usual width
10-15m
leaves
deciduous broadleaf
colour of leaves
flowers
showy
colour of flowers
blooming time
June-July
location
full sun
USDA zone (lowest)
5 (down to -29°C)
winter protection
for zone 5+6
for zone 7
categorized
Description of the plant:
Belonging to the same family as magnolia, common name tulip tree may be misleading since this name is often used for magnolias with saucer-shaped flowers. Hence gardeners rather use its other name yellow poplar. This is the tree with huge lyra-like, saddle-shaped leaves which do appear to miss a lobe. They are rich green in summer and change to golden yellow in autumn. Even nicer are definitely the flowers. They look like small tulips of creamy yellow and light green colour. At the bottom, each petal has an orange mark which is more conspicuous when looking inside the flower. The centre is full of beige pistils which are the same height as the flower itself. Yellow poplar begins flowering in June and continues for almost a month. Only 10 and older trees can produce flowers as far as the species, however, several other varieties have been bred that bloom from the age of 3 years already.
If pruned as young it can be kept a large dense shrub for some time, but uncontrolled it will finish up as a giant with some 25-30 meters in its maturity after many years. So find it a nice place with enough room for the crown. Yellow poplar needs the same type of soil and care like magnolias: evenly moist soil but well-drained, slightly acidic, humus-rich soil. Grow it in full sun and expect the crown to cast a good shade when mature. Pruning, if needed, is best done immediately after flowering. It is usually pest and disease free. Fully hardy to about -29°C (USDA zone 5).
Last update 18-07-2012
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GLOSSARY
- STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
- DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
- EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
- STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
- HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
- SHRUB - a woody plant with branches growing bushy from the ground level.
- HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
- FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
- GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.
