🧅 Giant Onion (Allium Giganteum), specifically the Globemaster variety, is an impressive ornamental onion plant known for its huge purple flower heads measuring 6–8 inches (15–20 cm) across. This plant is perfect for dried flower arrangements and is also a favorite among bees. 🌸🐝
Allium giganteum is a perennial bulbous plant that can grow up to 2 meters (6.5 feet) tall. It is the tallest ornamental Allium in common cultivation. The Globemaster variety is slightly shorter (80 cm/31 in), but it produces much larger, deep violet flower heads. This cultivar has received the Royal Horticultural Society's Award of Garden Merit, a recognition of its exceptional garden value.
Name: Giant Allium 'Globemaster'
Scientific Name: Allium Giganteum
Color: Purple flower heads, 6–8 inches (15–20 cm) round
Plant Height: 36–48 inches (90–120 cm)
Planting Time: Outdoors after frost / Indoors weeks before last frost
Bloom Time: Late Spring - Mid Summer
Hardiness Zone: 4 - 9
Plant Spacing: 12–15 inches (30–38 cm)
Light Requirements: Full Sun
Soil & Water Preferences: Average moisture and well-drained soil
Plant Outdoors: Plant seeds outdoors after the last frost. 🌱
Plant Indoors: Start seeds indoors a few weeks before the last frost. 🏡
Light: Plants prefer full sun for optimal growth. 🌞
Soil & Watering: These plants thrive in average moisture with well-drained soil. No need for excessive watering. 💧
Stratification Temperature: Place the pot with seeds in a plastic bag at around 5°C (41°F) for 3-4 weeks before moving it to the germination temperature of around 15°C (59°F). 🌡️
Germination: Germination can be slow, typically taking 1 month to several months. 🌱
Use sterilized soil for planting.
Lightly cover the seeds with soil, keeping it moist but not waterlogged.
After stratification, move the pot to the ideal temperature for germination.
Once the plants have grown sufficiently, transplant them to your chosen garden space. 🌳
🧅 Giant Onion is popular among flower arrangers and those who love dried flower decorations. Its large purple flowers create a stunning visual effect in the garden and can be dried for beautiful arrangements and decorative pieces. 💐✨
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| Type of Delivery | Processing Time | Insured | Possible Delays | Notes |
|---|---|---|---|---|
| Standard | 7–10 business days | ❌ | 7–14 days | Basic shipping option |
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