The EXCLAMATION!™ London planetree is a Chicagoland Grows® introduction that is resistant to anthracnose and frost cracking. It is a large tree with beautiful peeling bark.
All common names:
- Residential and parks,
- City parkway,
- Wide median,
- Restricted sites
Tree or Plant Type:
- Deciduous (seasonally loses leaves)
- Shade tree,
- Large tree (more than 40 feet)
- Full sun (6 hrs direct light daily)
- Zone 4,
- Zone 5 (Chicago),
- Zone 6,
- Zone 7,
- Zone 8
- Moist, well-drained soil
- Dry sites,
- Wet sites,
- Alkaline soil,
- Clay soil,
- Road salt
- Moderately Tolerant
- Showy fruit,
- Attractive bark
Seasons of Interest:
- early winter,
- late winter,
- early fall
Flower Color & Fragrance:
Shape or Form:
- Insect pollinators,
- Small mammals
Tree & Plant Care
Plants grow best in moist, deep, rich well-drained soil in full sun. Does not tolerate shady sites.
Soil pH adaptable, moderately salt and drought tolerant.
Can be a messy tree since drops a lot of leaves, twigs and fruit.
Disease, pests, and problems
Possible problems include canker stain and sycamore lacebug.
Disease, pest, and problem resistance
Resistant to anthracnose, powdery mildew and frost cracking.
Native geographic location and habitat
Of hybrid origin.
Bark color and texture
The bark is peeling, revealing a mottled pattern of green, tan and brown.
Leaf or needle arrangement, size, shape, and texture
The alternate leaves are large (6 to 7 inches long and up to 10 inches wide), and palmately lobed.
The medium green leaves change to yellow and brown in fall.
Flower arrangement, shape, and size
Monoecious, with separate male and female flowers. Flowers appear in early spring with the leaves as dense globose balls on long stalks (peduncles).
Male flowers are green , females are showier, bright burgundy-red.
Not ornamentally important .
Fruit, cone, nut, and seed descriptions
Ball-like seed heads (1 inch diameter) hang in pairs from long stalks. Seeds shatter during winter months. This cultivar tends to produce less fruit than the species.