In the Val di Chiana, that strip of Tuscany nestled between Arezzo, Siena, and nearby Umbria, there exists a vegetable that for centuries has been jealously guarded by local farming families: aglione. A bulb as large as a fist, with a sweet and enveloping flavor, so delicate that even those who can't stand common garlic end up falling in love with it.
For a long time, aglione remained a secret of Tuscan peasant tradition, passed down from generation to generation almost like a family inheritance. Today, finally, this extraordinary vegetable is experiencing a well-deserved rediscovery, so much so that it has been included in the list of Traditional Italian Agri-food Products (PAT) of the Tuscany Region.
If you want to discover everything about this gastronomic treasure – or even better, if you want to grow it in your garden – you've come to the right place. In this complete guide, we will tell you the history of aglione, its properties, how to grow it successfully, and how to use it in cooking to enhance your dishes.
In this article, we will particularly look at:
- What is Val di Chiana aglione and why is it so special?
- The differences between aglione and common garlic
- Nutritional properties and health benefits
- How to grow aglione in your garden
- Ideal climate and soil
- When to plant the bulblets
- Sowing and spacing
- Fertilization and irrigation
- Harvesting and storage
- Aglione in the kitchen: recipes and pairings
- Where to find aglione seed bulbs
🧄 Discover the Millstore Garlic and Aglione Bulb collection
What is Val di Chiana aglione and why is it so special?
Aglione (Allium ampeloprasum var. holmense) is a relative of common garlic but belongs to a different species, closer to the leek. This botanical distinction is not a mere detail: it is precisely what explains its unique characteristics.
At first glance, aglione impresses with its impressive size: a single bulb can reach 10-15 cm in diameter and weigh up to 300-500 grams. Each bulb is made up of a few very large cloves (generally 4-6), unlike common garlic which has many more and smaller ones.
The outer skin varies from white to pinkish, while the inner flesh is white, meaty, and juicy. But the real magic lies in its flavor: aglione is incredibly sweet and delicate, lacking the typical aggressiveness of garlic that then "stays in the stomach" and that many people find difficult to digest.
The secret? Aglione contains very small quantities of allicin, the substance responsible for the pungent taste and typical garlic breath. This makes it perfect for those who love the taste of garlic but not its consequences.
The differences between aglione and common garlic
To better understand what makes aglione so different, here is a direct comparison with common garlic (Allium sativum):
- Size: Aglione is 5-10 times larger than common garlic.
- Number of cloves: 4-6 large cloves in aglione, 10-20 small cloves in common garlic.
- Flavor: Sweet, delicate, and digestible in aglione; pungent and persistent in common garlic.
- Breath: Aglione does not leave the typical "garlic breath" thanks to its low allicin content.
- Digestibility: Excellent for aglione, problematic for many people with common garlic.
- Botanical species: Aglione is an Allium ampeloprasum, garlic is an Allium sativum. They are relatives, not the same plant.
- Storage: Aglione stores for a shorter time than garlic (3-4 months), precisely because it contains more water and fewer antimicrobial substances.
Nutritional properties and health benefits
Aglione is not only a tasty ingredient but also a true ally for your health. Like all Allium, it is rich in valuable bioactive substances.
Here are the main benefits you should know about:
- Rich in antioxidants: counteracts free radicals and protects cells from aging.
- Anti-inflammatory properties: the sulfur compounds present in aglione help reduce inflammation in the body.
- Cardiovascular system support: contributes to improving blood circulation and keeping cholesterol levels under control.
- Immune system booster: the vitamins (particularly vitamin C and B vitamins) and minerals (potassium, phosphorus, calcium) contained in aglione support the body's natural defenses.
- Digestive properties: unlike common garlic, aglione promotes digestion rather than making it heavy, making it suitable even for those with sensitive stomachs.
- Antibacterial properties: although to a lesser extent than common garlic, it maintains good antimicrobial activity.
From a caloric point of view, aglione is a light food: about 40-50 kcal per 100 grams, with a good fiber content and virtually no fat.
How to grow aglione in your garden
The good news is that aglione is a hardy and robust plant, relatively easy to grow even if you don't have much experience. Cultivation is similar to common garlic, but with some important differences you need to keep in mind.
Ideal climate and soil
Aglione is native to the Val di Chiana, a hilly territory with a temperate Mediterranean climate: hot summers and relatively mild winters. However, it is a more adaptable plant than one might think and can be successfully grown in most of central-southern Italy and, with due precautions, also in the North.
The ideal soil is:
- Well-drained: aglione does not tolerate waterlogging, which causes bulb rot.
- Loose and soft: sandy or medium-textured soils are perfect. If your soil is clayey, you will need to work it deeply and add sand or draining material.
- Neutral or slightly basic pH: between 6.5 and 7.5.
- Rich in organic matter: aglione is a demanding vegetable in terms of nutrients, so the soil needs to be well prepared.
When to plant the bulblets
Aglione propagates by bulblets (the cloves of the bulb), not by seed. The planting period varies by area:
- Central-Southern Italy: from October to December. Autumn planting is traditional and allows the bulb to benefit from winter rains for rooting.
- Northern Italy: from February to March, to prevent the bulblets from being damaged by overly intense frosts. Alternatively, you can plant in autumn by protecting the soil with good mulching.
Harvesting generally takes place between June and July, when the leaves begin to yellow.
Sowing and spacing
For planting the bulblets, follow these instructions:
- Choose healthy, firm, and good-sized bulblets (at least 20-30 grams each). The larger the bulblet, the larger the bulb you will get.
- Bury the bulblets with the point facing upwards, at a depth of about 5-8 cm.
- Maintain a distance of 25-30 cm in the row and 40-50 cm between rows. Aglione needs space to develop its voluminous bulbs.
- After planting, cover with soil and press lightly.
Fertilization and irrigation
Aglione is a rather demanding vegetable in terms of nutrients. To obtain large and tasty bulbs, you will need to carefully manage fertilization:
- Base fertilization: before planting, incorporate mature compost or organic pelleted manure into the soil at a rate of 3-4 kg per square meter. Work it into the first 20 cm of depth.
- Top dressing: in late winter, when the plant resumes vegetative activity, distribute a fertilizer rich in potassium and phosphorus to promote bulb development.
- Avoid excess nitrogen: too much nitrogen promotes leaf development at the expense of the bulb.
Regarding irrigation:
- During autumn and winter, aglione generally does not need additional irrigation; natural rainfall is sufficient.
- In spring, if the climate is particularly dry, water moderately, avoiding wetting the leaves ( drip irrigation is better).
- Stop irrigation completely at least 2-3 weeks before harvesting, to allow the bulbs to dry and store better.
Harvesting and storage
The harvest time is crucial for the quality of your aglione. Here's how to proceed:
When to harvest: Harvesting takes place between June and July, when about 50-70% of the leaves have yellowed. If you wait too long, the bulb "opens" in the soil and stores poorly. If you harvest too early, the bulb will not have reached its maximum size.
How to harvest: Use a fork to gently lift the clod of earth under the plant, without damaging the bulbs. Avoid pulling the leaves to extract the bulb.
Drying: After harvesting, let the bulbs dry in the shade, in a well-ventilated place, for 10-15 days. You can tie them in braids or arrange them on racks.
Storage: Aglione can be stored for about 3-4 months in a cool, dry, and dark place. The shelf life is shorter than that of common garlic due to its higher water content. For longer storage, you can freeze peeled cloves or prepare preserves in oil.
Aglione in the kitchen: recipes and pairings
In the kitchen, aglione is an extraordinarily versatile ingredient. Its sweet and enveloping flavor makes it suitable for preparations where common garlic would be too aggressive.
Pici all'aglione: the signature dish
The most famous recipe is undoubtedly pici all'aglione, the iconic dish of the Val di Chiana. Pici are a handmade fresh pasta, similar to irregular thick spaghetti, seasoned with a very simple sauce made from aglione, peeled tomatoes, extra virgin olive oil, and chili pepper. The simplicity of the ingredients enhances the unique flavor of aglione.
Other culinary uses
- Raw: thinly sliced in summer salads, where its sweet flavor does not overpower other ingredients.
- In a pan: as an aromatic base for sauces, risottos, and soups. It browns gently in oil without needing to be removed before serving, as is often done with common garlic.
- Baked: whole, wrapped in aluminum foil with a drizzle of oil, it becomes a soft and sweet cream to spread on toasted bread.
- With meats: perfect for flavoring roasts, chops, chicken, and rabbit.
- With fish: ideal for spaghetti with clams, fish soup, or shellfish, where its delicate taste does not overpower the flavor of the sea.
- Preserved: in oil or as a cream, to have aglione available all year round.
Where to find aglione seed bulbs
If you want to grow aglione in your garden, the first fundamental step is to get quality seed bulbs. As a traditional variety with limited distribution, it is not always easy to find certified and healthy bulblets.
Turning to a specialized and reliable retailer guarantees you will receive healthy, vital, and correct variety bulblets. In the Millstore Garlic Bulb section you can find quality selections, ready for planting.
If you would like personalized advice on growing aglione, the ideal planting period for your area, or how to best prepare the soil, Millstore experts are available by phone, email, WhatsApp, or through the website chat to answer all your questions and guide you step by step in this gastronomic adventure.
🧄 Discover the Millstore selection of Garlic and Aglione Bulbs