Allium 'Purple Sensation' (Purple Ornamental Onion) — Bulbs size 10/12
- Regular price
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€23,95 - Regular price
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- Sale price
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€23,95
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Frequently Asked Questions
How tall does Allium Purple Sensation grow? Its flower stems reach 70 to 80 cm tall, topped with a purple ball 8 to 10 cm in diameter.
Does allium bloom again every year? Yes, left in the ground, allium bulbs bloom again every spring and gradually form fuller clumps.
SHIPPING & PACKAGING
Shipping within 24/48 hours via DPD
- Delivery in 2 to 5 business days
- Eco-friendly packaging: recyclable boxes and biodegradable materials
- Special protection to ensure the plant arrives in perfect condition
- Parcel tracking sent by email as soon as shipped
- Free delivery on orders over €50
48H QUALITY GUARANTEE
We guarantee that your plants will arrive in perfect condition. If your plant arrives damaged or in poor condition:
- Contact us within 48 hours at hello@verdeia.eu with photos
- Free replacement or full refund
- No return necessary – we trust you
The guarantee covers: damage related to transport, severely weakened plant upon arrival, preparation errors.
CARE TIPS UPON ARRIVAL
To help your plant settle in for the long term:
- Unpack immediately and inspect your plant
- Let it acclimatize 24-48h in a bright spot without direct sunlight
- Check soil moisture before watering (dry surface = light watering)
- Wait 2-3 weeks before repotting
- Avoid heat sources and drafts
- Gently wipe leaves to remove dust
Need help? Contact our team at hello@verdeia.eu or via chat.
💜 8 to 10 cm purple spheres • 🌿 Tall 70 to 80 cm stems • 🐝 Rich in nectar • ☀️ Full sun • ❄️ Hardy down to -25 °C • 🔁 Blooms again every year • 📏 Bulb size 10/12
The Allium 'Purple Sensation' is the most commonly planted ornamental allium in gardens: each bulb produces a straight stem 70 to 80 cm tall in May and June, topped with a perfect 8 to 10 cm sphere made up of hundreds of tiny purple stars. The species, Allium hollandicum, is native to Central Asia (Iran), and its flowers are among the most visited by bees and bumblebees.
These 10/12-size bulbs are planted in fall and bloom again year after year without being dug up. They are among the flower bulbs that are easiest to grow, in a flower bed or a large pot on a sunny balcony.
How many bulbs should you choose?
Alliums make the biggest impact when planted in groups: allow 10 to 15 bulbs per square meter, or 5 to 7 bulbs in a pot 30 cm in diameter.
- 15 bulbs: a flower bed of about 1 m², or two to three large pots on a balcony.
- 30 bulbs: about 2 m², for a flowering border along a path or terrace.
- 60 bulbs: about 4 m², for a real massed effect among perennials.
- 120 bulbs: about 8 m², for a large flower bed or a flowering meadow.
The larger the pack, the lower the price per bulb: the 120-bulb pack costs less than half the per-bulb price of the 15-bulb pack.
Planting & location
Plant the bulbs from September to December, as long as the ground is not frozen, for flowering the following spring.
- Exposure: full sun, at least 6 hours a day; in partial shade, the stems grow long and lean.
- Depth: 10 to 15 cm, pointed end up, or about three times the bulb's height.
- Spacing: 15 to 20 cm between bulbs in the ground, 8 to 10 cm in pots.
- Soil type: well-drained, even poor or chalky soil; the bulb rots in soil that stays waterlogged in winter.
- Hardiness: down to -25 °C in the ground, no protection needed.
Plant them in irregular groups rather than in a straight line: the globes then seem to float above the other plants, as in a natural garden.
Watering & care
Alliums need very little: rainwater is enough in the ground, and excess moisture is what threatens them, as explained in our article about overwatered plants with damaged roots.
- Watering: minimal — water once when planting, then only if spring is very dry; in a pot, water when the potting soil is dry several centimeters down.
- In a pot: use well-draining potting soil mixed with sand or clay pebbles, as explained in our guide to substrates and potting soil.
- Fertilizer: unnecessary in the ground; in a pot, use bulb fertilizer when the leaves emerge.
- After flowering: let the leaves turn yellow and dry out in place; they replenish the bulb's reserves for the following year.
The leaves start to turn yellow as the flowers open: this is normal for alliums. Plant them behind low-growing plants that will conceal the foliage.
Decorating ideas & plant pairings
Its purple globes tower over flower beds in late spring and pair well with ornamental grasses and sun-loving perennials, as shown in our guide to plants for a sunny balcony.
- To conceal its foliage, plant it in the middle of the trio of Festuca, Carex and Stipa ornamental grasses — the clumps hide the yellowing leaves, while the purple globes stand out above them.
- For a color contrast, pair it with the set of 4 ornamental grasses — the blue fescue and yellow sedge highlight the purple flowers.
- To extend the purple color all summer, add a Buddleja 'Butterfly Candy Little Lila' — its lilac flower spikes take over in July, once the allium has finished blooming.
- For a balcony version, plant 5 to 7 bulbs in the Elho Greenville Round foliage green pot in Ø25 cm — an outdoor pot with drainage holes, whose green color makes the purple flower heads stand out.
The dry flower heads keep their shape all summer: leave them in the garden, or cut them for a striking dried bouquet.
Verdeia tips
- Plant as soon as they arrive: the bulbs can be stored for a few weeks in a cool, dry place, but they root better if planted quickly, before hard frosts.
- Cut a few flower heads for a vase: trim the stems in the morning, when the flower head is half open. They last up to two weeks in a bouquet, leaving the rest of the flower bed undisturbed.
- Do not dig up the bulbs: left in place, they flower again every spring and gradually form fuller clumps. In a pot, simply protect the container during severe cold, as explained in our guide to cold-hardy plants.
Technical specifications
- Botanical name: Allium hollandicum 'Purple Sensation'
- Common name: Purple ornamental allium
- Family: Amaryllidaceae
- Origin: species native to Central Asia (Iran)
- Delivery: dry bulbs, size 10/12 (10 to 12 cm in circumference), in packs of 15, 30, 60, or 120
- Height in flower: 70 to 80 cm
- Flowering: May to June, purple-violet flower heads 8 to 10 cm across
- Planting: September to December, 10-15 cm deep
- Exposure: full sun
- Watering: low
- Hardiness: down to -25 °C
- Soil type: well-draining; tolerates poor and chalky soils
- Cycle: perennial, flowers again every year
- Pollinator-friendly: very attractive to bees, bumblebees, and butterflies
- Care: very easy
- Toxicity: toxic to animals (dogs and cats) if ingested, like all alliums
- Decorative style: Natural garden / Cottage garden / Contemporary
Each bulb is unique: the size of the flower heads and the height of the stems naturally vary depending on the soil and sun exposure.
Your plant, delivered with care
Every plant is hand-packed in a box specially designed for plants — secured, protected, ready to travel. It arrives in perfect condition, roots intact and foliage preserved, ready to take its place in your home.
Our Verdeia commitments
FAQ – Everything to know before adopting your Verdeia plant
How are my plants prepared before shipping?
All our plants are selected from our European partner nurseries. Before shipping, they are watered, cleaned, and protected with breathable, secure packaging. Each package is designed to ensure your plant arrives in perfect health, without any transport-related stress.
Will the plant look exactly like the photo?
The photos accurately represent the variety and the stated size. Since each plant is unique, slight differences in shape, foliage, or color may occur — and that’s part of their charm.
What are the delivery times and conditions?
Shipping is done within 48 business hours, with tracked delivery within 2 to 5 business days. Delivery costs €5.60 — free for orders over €50. You will receive a tracking link as soon as the package is shipped.
What to do upon receiving my plant?
Open your package as soon as you receive it and carefully remove the plant from its packaging. Let it acclimate for 24 hours in its new environment before watering. If it has been slightly stressed during transport, it will recover its shape after one or two days in the light.
What to do if my plant arrives damaged?
Contact us within 48 hours with a photo of the issue. Our team will assess the situation and offer you the best solution: replacement, partial refund, or recovery advice.
Can I return a plant?
Since plants are living beings, standard returns are not possible. However, we guarantee good health upon delivery: if the plant arrives damaged, it will be replaced free of charge. For any other cases (order error, decorative pot, accessory), returns are possible within 14 days.