Plant Calendar

Planting Time

Flowering Time

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Description

A striking wash of true blue in your early summer border! Also known as Allium azureum, this fully hardy ornamental onion produces dense rounded clusters of dainty, star-shaped flowers on stiff upright stems, creating a clean, vivid colour effect that feels fresh, cool and unusual.

Growing up to around 80cm tall, it works especially well through sunny herbaceous borders, where the flowerheads can rise above companion plants without overwhelming them.

The slender leaves often die back before the blooms appear, so plant among medium-sized perennials such as sea holly, salvias, hardy geraniums and ornamental grasses. These neighbours help disguise the lower growth while the blue globes take centre stage.

Flowering in June, Blue Allium caeruleum bridges the gap between spring bulbs and high-summer perennials. It is fully hardy, straightforward to grow in full sun and well-drained soil, and is an RHS recommended 'Plant for Pollinators'.

Supplied as 30 size 5+ bulbs, ready to plant.

Top Tips

Underplant with hostas, ferns or other low-growing, hardy perennial plants to help disguise the leaves as they fade.

Care Information

Planting Advice for Alliums:

Find a location where the soil drains well and where they will receive full sun.
Plant allium bulbs in early to mid-autumn in a sheltered site to prevent the top-heavy flower spikes from getting blown over.
Dig over the soil and remove any weeds before planting.
Water well after planting, saturating the soil around the bulbs. Once established, alliums are drought tolerant.
In borders, plant bulbs in early autumn at a depth of about four times the diameter of the bulbs.
In containers, alliums will do well in deep pots with a good general-purpose potting compost with a handful of horticultural grit added.

Aftercare Advice for Alliums:

After planting, feed with a general-purpose feed such as our Blooming Fast Superior Soluble Fertiliser.
Dried flower heads can be removed and made into indoor decorations or left on the plants to self-seed.
Divide alliums every three to four years or when the plants begin to look overcrowded and blooming decreases.
Lift the bulbs with a garden fork or spade and pull the bulbs apart.
Replant some in the original location and plant the remainder in a new location.

Pruning and Trimming Advice for Alliums:

The leaves die down at flowering time, so it�s best to plant alliums where this foliage is masked by that of other plants.
Avoid removing them while still green, as they provide the bulbs with energy for the following season.

Delivery Information

Our experienced team at the nursery will always carefully package and send your plants nursery fresh in the perfect condition to thrive once you receive and plant them. Although most plants are extremely tough and will not be affected by all but the most extreme of weather conditions, we always avoid dispatching the most perishable plants if extreme frosts or heat is forecast. We also avoid dispatching orders over Bank Holiday weekends.

Please allow us 3-5 working days to dispatch your order. If you have ordered a 'pre-order' item, these will be sent out as soon as possible after the quoted dispatch date and we generally ship your entire order with any pre-ordered items. Once your order has been dispatched, we will send you an email with details on how you can track it.

We send most of our orders via a fully tracked courier service with Yodel. We will send you a tracking link as soon as your order has been dispatched. To avoid perishable items being stuck at depots and deteriorating, we will not require a signature on delivery, and we ask out couriers to leave your item in a safe place ad your delivery address.

*Please note, once your item has been delivered, we cannot be held responsible for loss or theft from your delivery address. If you have delivery instruction and require our courier to leave your item in a specific place, please let us know - there is an option to leave a message for the courier at the checkout.

For smaller and single-item orders, we may send these via the post with Royal Mail - Tracking will not be available for orders sent via this method.

**Please note, we cannot guarantee delivery on a certain day or time. Delivery to outlying postcode areas may take 1-2 days longer, dependent on your location.

For all orders, a small delivery fee of £4.99 will be charged or spend over £49.99 for FREE Delivery!

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