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VIRIAR
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Dramatic South American perennial with prehistoric-looking foliage for bold garden designs
Gunnera insignis, commonly known as the Giant Gunnera, is a dramatic and impressive perennial plant native to the Andean regions of South America. Known for its enormous, prehistoric-looking leaves and striking appearance, it is often used in large garden landscapes and water gardens to create a bold, tropical effect.
The Giant Gunnera can reach impressive sizes, with leaves that can grow up to 2 meters (6.5 feet) in diameter and stems that can exceed 3 meters (10 feet) in height. The plant features deeply lobed, spiky leaves that have a unique, textured surface and a vibrant green color. The leaves are supported by thick, robust petioles and create a dense, lush canopy.
During the flowering period, the plant produces small, inconspicuous flowers arranged in cylindrical spikes, which are less notable compared to the plant's foliage. The striking visual impact of this plant makes it a standout choice for creating bold and impressive garden designs that command immediate attention.
Gunnera insignis prefers full sun to partial shade. While it can tolerate full sun, it often benefits from some afternoon shade in hotter climates to prevent leaf scorch and maintain vibrant foliage color.
This plant thrives in temperate to subtropical climates with temperatures ranging from 10-25 °C (50-77 °F). It can tolerate light frost but is sensitive to severe cold. It is best suited for USDA zones 8-10.
The Giant Gunnera prefers moist, rich, and well-draining soils. It can thrive in a variety of soil types, including clay, loam, and sandy soils, as long as they are consistently moist. It is particularly well-suited for boggy or waterlogged conditions.
Regular and abundant watering is crucial for Gunnera insignis. It requires consistently moist soil, and in particularly hot or dry periods, it may benefit from additional watering or supplementary irrigation to maintain optimal moisture levels. Never allow the soil to dry out completely.
Choose a location with full sun or partial shade and ensure the soil is well-draining and rich in organic matter. For planting in containers, use a large pot with excellent drainage and a nutrient-rich potting mix. If planting in the ground, ensure the site has ample space to accommodate the plant's expansive size—this is a truly large plant that demands room to grow.
Feed Gunnera insignis with a balanced, slow-release fertilizer or compost during the growing season to support its vigorous growth. Apply fertilizer every 4-6 weeks or as needed to promote healthy foliage and robust development. Rich, nutrient-dense soil is essential for optimal performance.
Regularly check for pests and diseases, although the Giant Gunnera is generally hardy and resilient. Prune off any dead or damaged leaves to maintain the plant's appearance and encourage new growth. In colder climates, provide mulch or other protection to safeguard the plant during winter months.
Soak the seeds of Gunnera insignis in warm water for 24-48 hours before planting to improve germination rates. This pre-treatment softens the seed coat and activates the embryo, significantly enhancing successful germination outcomes.
Sow the seeds in a well-draining seed-starting mix. Plant the seeds on the surface of the soil and lightly press them in, but do not cover them with soil as they need light to germinate. Light exposure is critical for seed activation and successful sprouting.
Place the seed tray in a warm, humid environment with temperatures around 20-25 °C (68-77 °F). Keep the soil consistently moist and provide bright, indirect light. Germination can be slow and may take several weeks to a few months depending on seed age and conditions.
Once seedlings emerge, provide them with bright, indirect light and gradually acclimate them to more direct light over several weeks. Transplant seedlings into larger pots or directly into the garden when they are large enough to handle and have developed several true leaves.
Premier Provider of Exceptional Exotic and Rare Seeds Worldwide
Specializing in authentic, carefully curated germplasm selected with meticulous precision and unwavering commitment to quality excellence.
Bringing tropical paradise to gardens across 190+ countries
At VIRIAR, we specialize in delivering premium tropical plants, exotic palms, and rare seeds from our nursery in Topoľníky, Slovakia to plant enthusiasts worldwide. Every shipment is carefully packaged with phytosanitary certificates and expert care instructions to ensure your plants arrive healthy and ready to thrive.
We've perfected the art of shipping live tropical plants internationally. Each plant is bare-rooted, wrapped in protective materials, and shipped with moisture-retaining packaging. Our plants are quarantine-certified and come with all necessary documentation for customs clearance.
Real-time tracking from our nursery in Slovakia to your doorstep anywhere in the world
Professional bare-root prep, moisture control, protective wrapping for long journeys.
Official EU certificates and health inspections for international transport.
Track plants from nursery to doorstep with real-time updates.
Weather monitoring and insulated packaging for temperature protection.
Detailed planting instructions and aftercare tips included.
100% alive arrival promise or free replacement.