Ginkgo Ginkgo biloba 'Troll'
ABOUT
The Ginkgo biloba 'Troll' is a unique and ornamental plant with distinct features. The most recognizable aspect of the plant is its fan-shaped, bright green leaves, which turn to a striking yellow color in the fall, providing a display of autumnal colors. These leaves are notched, resembling a half-open book, with veins that radiate out from the base without any significant branching. The overall shape of the leaves is such that they appear almost like they are fluttering or waving in the wind. The Ginkgo 'Troll' retains the interesting characteristic of ginkgo trees, with their leaves having that singular, graceful form that has been associated with prehistoric times. The tree itself has a compact, rounded form, with branches growing in an attractive, somewhat symmetrical shape. As the 'Troll' is a slow-growing cultivar, it maintains a neat, manicured appearance without requiring significant pruning or maintenance. This quality makes it an excellent choice for those who prefer a plant that remains manageable over the years, and it adds an air of antiquity and sophistication to any setting in which it is placed. The bark of the Ginkgo 'Troll' is typically a light gray, providing texture and contrast to the landscape with ridges and furrows. The Ginkgo 'Troll' does not bear fruits as commonly as other ginkgo trees, but when it does, they are small, yellow-brown, and plum-like, containing seeds that are traditionally regarded for their culinary and medicinal properties. These seeds, however, are surrounded by a fleshy outer layer that can emit an unpleasant smell when it starts to decay on the ground. Overall, Ginkgo biloba 'Troll' offers year-round visual interest with its distinct leaves, compact growth habit, and beautiful seasonal color transitions.
About this plant
NamesFamily
Ginkgoaceae
Synonyms
Dwarf Ginkgo, Troll Ginkgo, Miniature Ginkgo
Common names
Ginkgo biloba 'Troll'.
ToxicityTo humans
Ginkgo biloba, or simply ginkgo, has parts that are considered both edible and medicinal, but also has components that can be toxic if consumed improperly. The seeds, if consumed in large quantities or over a long period, can cause poisoning due to the presence of natural toxins like ginkgotoxin (4'-O-methylpyridoxine). Symptoms of ginkgo seed poisoning can include convulsions, loss of consciousness, and in severe cases, death. Consuming large quantities of the seeds has been linked to increased risk of seizures, particularly in individuals who have a seizure disorder. The raw seeds also contain cyanogenic glycosides, which can release cyanide within the body and should not be eaten raw. It is the seed, rather than the leaf, that poses a risk, and processed ginkgo biloba leaves found in supplements are considered safe and free of these toxic components.
To pets
Ginkgo biloba is not commonly known as a significant toxic threat to pets. Similar to humans, the potential toxicity is associated with the seeds, not the leaves of the tree. The seeds might cause gastrointestinal upset or more serious symptoms like seizures if a pet consumes them in large amounts. However, ginkgo biloba poisoning in pets is relatively rare. It is still advisable to prevent pets from ingesting seeds or large parts of this plant due to their potential toxicity. If you suspect your pet has ingested ginkgo seeds, it's best to consult a veterinarian.
CharacteristicsLife cycle
Perennials
Foliage type
Deciduous
Color of leaves
Green
Height
3-4 feet [0.9-1.2 meters]
Spread
2-3 feet [0.6-0.9 meters]
Plant type
Tree
Hardiness zones
3-8
Native area
China
Benefits
General Benefits- Compact Growth: 'Troll' is a dwarf variety of Ginkgo, suitable for small gardens and spaces.
- Drought Resistance: Once established, it is highly resistant to drought, requiring minimal watering.
- Low Maintenance: Requires little pruning or special care, making it ideal for low-maintenance landscapes.
- Attractive Foliage: Offers unique, fan-shaped leaves that turn a spectacular yellow in the fall.
- Pest Resistance: Naturally resistant to many pests, reducing the need for chemical treatments.
- Longevity: Ginkgos are known for their long lifespan, and the 'Troll' variety shares this characteristic.
- Urban Tolerant: Can withstand urban pollution and compacted soils, making it suitable for city environments.
- Adaptability: Able to grow in a variety of soil types and pH levels.
Medical Properties- Improves Circulation: Extracts from Ginkgo biloba are believed to increase blood flow by dilating blood vessels and reducing blood viscosity.
- Enhances Cognitive Function: It is often used with the intent to enhance memory and cognitive speed, particularly in individuals with dementia or Alzheimer's disease.
- Antioxidant Properties: It contains flavonoids and terpenoids that have antioxidant effects, potentially neutralizing harmful free radicals.
- Tinnitus Treatment: Some people use Ginkgo biloba in the hope of treating tinnitus, though evidence of effectiveness is mixed.
- Eye Health Support: Due to its blood flow enhancement and antioxidant effects, Ginkgo is proposed to support eye health and may be used in the context of glaucoma and macular degeneration.
- Reduces Symptoms of Anxiety: Limited studies suggest potential benefits of Ginkgo biloba for reducing anxiety symptoms.
- Mood Improvement: There are claims about its usage for mood improvement and treatment of depression, but scientific support for these uses is limited.
Air-purifying QualitiesThis plant is not specifically known for air purifying qualities.
Other Uses- Ginkgo leaf extract is sometimes used as a natural dye for textiles, providing a range of yellowish-green hues depending on the mordant used.
- The wood from the Ginkgo tree can be crafted into small objects such as wooden jewelry or artisanal, hand-carved utensils, displaying a light to medium range of wood tones.
- The fan-shaped leaves can be pressed and preserved, making them ideal for botanical art or decorative elements in crafts like homemade paper or bookmarks.
- Ginkgo nuts, though not widely consumed due to potential toxins, can sometimes be roasted and used in small quantities to add a unique flavor to certain traditional Asian dishes.
- Dried Ginkgo leaves are occasionally used in creating potpourri blends, contributing a distinctive shape and texture.
- Sap from Ginkgo trees can be collected and studied as a part of botanical research to better understand the tree's biology and resilience.
- Ginkgo wood's resistance to rot makes it suitable for use in outdoor garden structures, such as benches or decorative bridges, in areas where weathering is a concern.
- The distinct leaf shape of Ginkgo is an inspiration for designers and artists, who often incorporate the motif into architectural elements or pattern designs.
- Due to its ancient lineage, Ginkgo leaves are sometimes used for educational purposes, such as teaching about plant evolution and the history of earth’s flora.
- Ginkgo leaf impressions are used in fine art to create nature-inspired prints, capturing the unique venation patterns for aesthetic purposes.
Interesting Facts
Feng ShuiThe Ginkgo tree is not used in Feng Shui practice.
Zodiac Sign CompitabilityThe Ginkgo tree is not used in astrology practice.
Plant Symbolism- Longevity: Ginkgo biloba is one of the oldest living tree species, and it symbolizes long life and endurance, as it can live for a thousand years or more.
- Resilience: The tree famously survived the atomic bomb in Hiroshima, signifying survival, strength, and resilience in the face of adversity.
- Hope and Peace: Due to its history and survival, the Ginkgo represents hope and peace, offering inspiration to people around the world.
- Memory and Cognition: As Ginkgo biloba supplements are believed to improve cognitive function, the plant symbolizes mental sharpness and clear memory.
- Duality and Balance: Ginkgo leaves are bilobed, thus they symbolize duality and the harmonious balance of opposite forces.
WaterThe Ginkgo, or Maidenhair Tree, requires consistent moisture, especially during the growing season. It is best to water it once or twice a week, depending on weather conditions. When watering, soak the soil thoroughly to ensure the root zone is moistened, which may involve using about 5 gallons of water for mature trees each time you water. During hot, dry spells, additional watering may be necessary. In the dormant season, reduce watering frequency as the tree requires less moisture when growth slows down.
LightThe Ginkgo Tree thrives in full sun to partial shade conditions. It is adaptable but prefers a spot that receives at least 4 to 6 hours of direct sunlight daily. An ideal location would be one where the tree is exposed to unfiltered morning light and receives partial shade during the intense afternoon sun.
TemperatureGinkgo trees are tolerant of a wide range of temperatures and can survive winter cold down to -30 degrees Fahrenheit and summer heat up to 100 degrees Fahrenheit. However, they grow best in temperatures between 50 and 70 degrees Fahrenheit. Make sure to plant your Ginkgo in an area that avoids extreme temperatures for optimal health and growth.
PruningPruning the Ginkgo Tree is not essential but can be done to shape the tree or remove any dead or damaged branches. Prune in late winter or early spring before the growing season starts. It is best to limit pruning to once a year or as needed to tidy up the tree's appearance.
CleaningNot needed
SoilThe Ginkgo biloba 'Troll', or Dwarf Ginkgo, does best in well-draining soil with a mix of garden soil, peat, and perlite or sand. The ideal pH should range from 6.0 to 7.5, slightly acidic to neutral.
RepottingDwarf Ginkgo should be repotted every three to five years to ensure it has enough room to grow and to refresh the soil.
Humidity & MistingDwarf Ginkgo is not particularly humidity-sensitive and can tolerate a wide range of humidity levels, making it suitable for the average home or garden environment.
Suitable locationsIndoor
Place Dwarf Ginkgo in a bright spot, away from direct heat sources.
Outdoor
Plant in full sun to partial shade, in well-drained soil.
Hardiness zone
3-8 USDA
Life cycleGinkgo biloba 'Troll', commonly known as the Troll Ginkgo, begins its life cycle as a seed, which germinates in spring under suitable conditions of warmth and moisture. After sprouting, the seedling develops roots and a single shoot, gradually maturing into a dwarf tree with a distinctive conical shape. As it grows, the Troll Ginkgo produces fan-shaped leaves that turn a bright yellow in autumn before shedding. The plant may take several years to reach reproductive maturity, at which point it may produce ovules or pollen as part of its dioecious reproduction system, although 'Troll' is typically a male cultivar and predominantly produces pollen. Pollination is mainly wind-assisted, and since 'Troll' usually does not produce seeds, its propagation in cultivation is typically achieved through grafting or cuttings. The lifespan of a Ginkgo biloba 'Troll' can be quite long, with the overall genus known for its longevity, though dwarf cultivars might not match the centuries-long lifespans of their larger counterparts.
PropogationPropogation time
Early Spring
Propogation: The Ginkgo biloba 'Troll', also commonly known as the dwarf ginkgo, is most frequently propagated through seed sowing. The optimal time for sowing ginkgo seeds is in the fall, immediately after the seeds ripen, which allows them to undergo a natural stratification process over the winter months. The seeds should be cleaned of their fleshy outer layer and then planted about 1/2 inch deep in a mix of sand and peat. It's essential to keep them moist and protected from predation by birds or rodents. Germination occurs in the spring as temperatures rise; however, patience is required as ginkgo seeds are known for their slow germination rates, which can sometimes extend into the second year after sowing.
