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VIRIAR
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Ancient cycad with striking spiny foliage from Mexico
Dioon spinulosum, commonly known as the Spineless Dioon or Spinulose Cycad, is a striking and ancient cycad native to Mexico and parts of Central America. This cycad is renowned for its distinctive, spiny foliage and sturdy growth habit, making it a popular choice for ornamental gardening and landscape design.
The Spineless Dioon is a slow-growing cycad that can reach heights of 2–4 meters (6–13 feet) with a similar spread. It features a short, stout trunk that supports a rosette of large, pinnate leaves. The leaves are dark green, leathery, and have a unique, spiny texture along their margins, which gives the plant its common name. The leaves can grow up to 1.5 meters (5 feet) long and are arranged in a circular pattern around the trunk. The plant produces reproductive cones characteristic of cycads but does not bear traditional flowers.
Dioon spinulosum thrives in full sun to partial shade. It prefers bright, direct sunlight but can tolerate some afternoon shade, particularly in hotter climates. Ensure it receives at least 4–6 hours of sunlight per day for optimal growth.
This cycad prefers warm climates with temperatures ranging from 15–30 °C (59–86 °F). It can tolerate brief periods of cooler temperatures but should be protected from frost and temperatures below 5 °C (41 °F). It is best suited for USDA zones 9–11.
The Spineless Dioon prefers well-draining, sandy or loamy soils rich in organic matter. It can adapt to various soil types but thrives in slightly acidic to neutral pH conditions. Ensure good drainage to prevent root rot.
Regular watering is important, especially during the growing season. Keep the soil consistently moist but not waterlogged. Reduce watering in the winter months when the plant's growth slows down.
Choose a location with full sun or partial shade and ensure well-draining soil. For container planting, use a large pot with good drainage and a nutrient-rich potting mix. If planting in the ground, ensure the site has well-draining soil and enough space for the plant's growth.
Feed Dioon spinulosum with a balanced, slow-release fertilizer formulated for cycads. Apply fertilizer every 6–8 weeks during the growing season to support healthy growth. Avoid over-fertilizing, as this can lead to nutrient imbalances.
Prune off any dead or damaged leaves to maintain the plant's appearance and encourage new growth. The Spineless Dioon is relatively low-maintenance but should be monitored for pests and diseases. Check for common issues such as scale insects, aphids, or fungal infections.
Soak the seeds of Dioon spinulosum in warm water for 24–48 hours to soften the outer seed coat and improve germination rates. Scarify the seeds by lightly sanding them if necessary.
Sow the seeds in a well-draining seed-starting mix. Plant the seeds about 2–3 cm (1 inch) deep and cover lightly with soil.
Place the seed tray in a warm, sunny location with temperatures around 25–30 °C (77–86 °F). Keep the soil consistently moist but not waterlogged. Germination can be slow and may take several weeks to a few months.
Once seedlings emerge, provide them with bright, indirect light and gradually acclimate them to more direct sunlight. Transplant seedlings into larger pots or directly into the garden when they are large enough to handle.
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.
