Allium giganteum

If you receive the bulbs before the weather is suitable for planting, store them in a cool, dry, and well-ventilated place. A paper bag or an open crate in a darker corner of a garage or cellar is ideal. This will prevent premature sprouting or, conversely, rotting of the bulbs before they go into the soil permanently.

The bulbs of this ornamental garlic should be planted in the autumn, ideally during the months of September, October, and November. It is important to plant them at the correct depth, which should be approximately 15 cm. The recommended spacing is 25 to 30 cm apart, which corresponds to roughly 9 to 15 bulbs per square meter. As a customer, you will receive large, healthy bulbs (our largest bulb size 18/20), which simply need to be placed in a prepared hole with the tip facing upwards and covered with soil. Propagation from seeds is not performed in this case; everything grows from the planted bulbs.

Allium giganteum loves full sun. Therefore, choose the sunniest and warmest spot in your garden for it. Regarding the soil, it prefers sandy, loamy, and, above all, perfectly well-draining soil. It fundamentally dislikes waterlogging, so steer clear of heavy, clay, or permanently damp soils, where large bulbs could rot very quickly.

Yes, growing them in spacious ornamental containers is theoretically possible, but it requires a precise approach. The chosen container must be sufficiently deep (ideally at least 30 to 40 cm) so that the large bulbs you purchased can be safely planted at the required 15 cm depth while still having enough space underneath for their robust root system. It is absolutely essential to create high-quality, functional drainage using gravel or expanded clay at the bottom of the pot, and subsequently use an airy substrate with a significant addition of ordinary sand. In winter, we also strongly recommend wrapping the entire pot thoroughly with suitable insulating material, as harsh frost affects containers more dangerously from multiple sides than it does in a classic deep garden bed.

This is a true giant among ornamental alliums. It commonly reaches a respectable height of 100 to 150 cm. It blooms during the months of May and June, when it produces huge spherical inflorescences composed of thousands of tiny star-shaped florets on a long, bare stem. The flowers have beautiful shades of purple, pink, lilac to light violet and contrast stunningly with the distinct grey-green leaves at the base.

Definitely. The huge purple and pinkish heads, filled with hundreds of tiny flowers, are literally a living magnet for bees, bumblebees, hoverflies, and butterflies. By planting this eye-catching ornamental garlic, you will significantly support local biodiversity in your own garden and reliably provide useful insect pollinators with an exceptionally rich and high-quality source of sweet nectar and pollen.

Certainly! The immense purple spherical blooms are absolutely ideal for cutting into tall vases, where they remain fresh and beautiful for quite a long time. At the same time, this popular type of garlic is also excellent for drying for indoor winter floral arrangements. Even if you leave the flowers to dry right on the flowerbed, they retain their compact shape very well and add a highly attractive visual element to a dormant garden.

Although Allium giganteum is primarily planted and grown as an imposing ornamental perennial for its magnificent flowers, the entire plant is theoretically edible and has a delicate scent and taste reminiscent of real garlic. However, keep one very important warning in mind: for pets, especially dogs and cats, all plants in the Allium genus (both onions and garlic) are highly toxic. Please place them out of their reach if your pets have a tendency to chew on garden plants frequently.

Over the course of several years in the flower bed, Allium giganteum propagates best through natural and gentle bulb division. Over time, the large mother bulb underground gradually develops smaller daughter bulbs around its perimeter. Roughly once every 3 to 4 years, in late summer (after the plant's leaves have completely yellowed and withered), you can very carefully dig up the entire cluster of bulbs with a garden fork. You can then simply break the daughter bulbs off the main one by hand, clean them, and immediately replant them at a depth of 15 cm in new sunny spots in the garden. This way, you will get plenty of new beautiful plants for free.

You are doing nothing wrong; this is not a mistake in your cultivation. It is an entirely natural process. The grey-green leaves of all large ornamental alliums begin to dry out, yellow, and wither exactly when the plant is focusing all its gathered energy into forming that huge, final flower on the tall stem. A great practical tip from gardeners is to plant lower, dense ground-cover perennials (such as lady's mantle, hostas, or lavender) right in front of the allium, which will mercifully and effectively hide these unsightly drying leaves.

Most certainly! This majestic type of ornamental garlic is highly valued for its amazing longevity and absolute ease of care, making it directly recommended and rated by experts as very suitable for beginners. If you provide it with well-draining soil and a sunny spot in the autumn, and plant the healthy bulbs you receive at a depth of 15 cm, it will reward you with its amazing purple flowers as early as spring with almost zero additional effort on your part.

Great news for all enthusiastic gardeners is that Allium giganteum is practically completely pest and disease-free. The plant itself is quite aromatic, which naturally repels aphids, hungry slugs, and grazing wildlife. You can therefore grow it without any worries, even in gardens with a history of high populations of these common pests.