Green beans are a staple of summer menus across the UK, beloved for their crisp texture, bright colour and versatility in the kitchen. From slender French beans to chunky yard-long varieties, there is a rich tapestry of types of green beans to explore. In this guide, we will journey through the most common and the more unusual varieties, explain how to recognise them, how to cook them to perfection, and how to grow your own. Whether you are planning a simple weeknight supper or curating a feast for friends, understanding the nuances of these beans will help you make better choices in the shop and in the pantry.
Understanding Types of Green Beans
At its core, green beans belong to the species Phaseolus vulgaris. What sets them apart is the shape, size and texture of their pods, as well as the beans that develop inside. In the United Kingdom, you are likely to come across a mix of “green beans” and “string beans” in shops, farmers’ markets and restaurants. The term “haricot vert” is used for delicate, slender French beans, while “runner beans” refer to a related species (Phaseolus coccineus) with a longer, flatter pod and a robust personality. Types of green beans can be broadly categorised into slender, tender varieties and larger, heartier types. The culinary implications are clear: the more slender beans are ideal for quick cooking and delicate sauces, while broader ones sometimes benefit from longer cooking or pairing with bold flavours.
Classic Varieties You’ll Encounter
French Beans (Haricot Verts)
One of the most iconic types of green beans in Britain is the French bean, or haricot vert. These are slender, tender pods that stay crisp when cooked briefly. They are often picked when just a few inches long, yielding a delicate bite and a flavoursome profile that suits simple seasonings—garlic, lemon, a pat of butter, or a light herb finish. In terms of texture, haricot verts offer a clean snap and a bright green colour that holds up well under blanching or quick sautéing. For peak flavour, aim to harvest them when they are around 8–12 centimetres long and glossy, with no dull patches on the pod.
Green Beans and String Beans (Common Green Beans)
The everyday “green beans” you find in a supermarket are usually a mid-range pod, not as slender as French beans but not as thick as some robust varieties. This category is highly versatile in the kitchen. They can be shaved into salads, added to stews, or steamed and served with a drizzle of olive oil and a squeeze of lemon. When buying, look for pods that are firm to the touch, vibrant green, and free from brown speckles or limp sections. The chef’s trick is to snap off the stem ends and trim the tip, leaving the pods as intact as possible to retain their texture during cooking.
Runner Beans
Runner beans are typically longer and flatter than standard green beans. They come in a range of colours, including green, purple, and striking purple-podded varieties. Their flesh is slightly more fibrous and they benefit from a little longer cooking time or mechanical work to tenderise. Runner beans pair well with smoky bacon, browned onions, and robust herbs such as thyme and rosemary. In salads and side dishes, the best runner beans maintain a vibrant colour and a crisp-but-tender bite.
Wax Beans
Wax beans are a yellow-hued variety of green bean, often sold with a pale, almost lemony tone. The pods are usually slightly more delicate than classic green beans and can take on a touch more sweetness. They work beautifully in warm salads, with a touch of red onion, capers and a light vinaigrette, or simply steamed and served with herb butter.
Purple Beans
Purple beans offer a striking visual appeal and a sweet, grassy flavour. When cooked, their colour typically fades to green, but the pigment can linger briefly in salads or when blanched. They are a novelty that can elevate a dish aesthetically, while still delivering the comforting snap and fibre you expect from a green bean. The texture is usually similar to other slender varieties, making them a versatile option for quick cooking.
Lesser-Known and Specialty Varieties
Yard-Long Beans (Snake Beans or Asparagus Beans)
Yard-long beans are among the more exotic types of green beans you might encounter. They can reach impressive lengths, often 50–90 centimetres when fully grown. In the kitchen, they are typically trimmed into shorter lengths and prepared similarly to other beans, though they often require a little longer cooking to soften their slightly tougher skins. Their flavour sits somewhere between green beans and okra—slightly grassy with a vegetal sweetness—and they can be roasted, stir-fried, or braised in a savoury sauce.
Romano Beans (Italian Flat Beans)
Romano beans are broad, flat pods that belong to the same species as other green beans but offer a heartier bite. They are superb in stews, soups and braises where their heft can infuse the dish with their nutty, creamy texture. If you enjoy thicker beans, Romano varieties provide the satisfaction of a substantial bite without sacrificing the sweetness of green beans. They are particularly well-suited to Mediterranean-inspired dishes with olive oil, garlic and tomatoes.
Purple Podded Beans
A subfamily of beans with distinctive purple pods that turn green as they mature or when heated. They retain a crisp texture and contribute a playful element to seasoned dishes. Purple podded varieties make a vibrant addition to salads or light sautés, especially when finished with herbs and citrus for a fresh contrast.
How to Select, Prepare and Cook Types of Green Beans
Selecting Fresh Types of Green Beans
When shopping for fresh types of green beans, aim for firm pods that snap readily when bent. The pods should be uniformly green (or their natural hue), with a glossy surface and no shrivelling at the tips. Avoid pods with soft spots, discolouration or a dull, fibrous sheath. If you are choosing wax or purple-podded beans, ensure the colour is vivid; for yard-long beans, look for long, unblemished lengths that are still firm to the touch. Freshness is key to a crisp bite and a true bean flavour. For those who grow their own, harvest in the early morning when moisture is highest for maximum crunch.
Preparing and Trimming
Preparation is simple: wash the pods, trim the stem end and, if desired, the tip. Some varieties, notably Romano or yard-long beans, may benefit from removing the tough string along the pods. For many recipes, keeping the pod intact is ideal to preserve texture. When they are sold with beans inside, you can also trim away the ends near the beans for a tidier appearance. The approach you choose should complement the dish’s method of cooking, whether quick boiling, steaming, or a fast sauté.
Cooking Methods for Types of Green Beans
The key to great flavours is short, careful cooking that preserves crunch and colour. Blanching is a classic technique: plunge the beans into boiling water for 2–4 minutes, then shock in icy water to stop cooking and lock in colour. This method is excellent for salads or when finishing with a warm dressing. Sautéing in a hot pan with a splash of olive oil and garlic takes only a few minutes and yields a glossy, lightly charred surface. Steaming is gentler and keeps the bean’s natural sweetness; roasting at a high temperature yields a deeper caramelisation and a more complex flavour profile. For heartier varieties such as Romano beans, a brief boil or a 10–15 minute simmer in a seasoned stock can help tenderise before finishing with herbs and a touch of fat.
Storage and Shelf-Life
To enjoy peak flavours, store fresh types of green beans in the refrigerator in a breathable bag or wrapped loosely in a paper towel. They are most tender if used within 3–5 days of purchase. For longer storage, blanch them briefly and freeze in portions; they will retain bright colour and a crisp-tender texture when thawed and reheated. Avoid storing them near ethylene-producing fruit such as apples and bananas, as this can speed up ageing and cause the beans to lose their snap.
Nutritional Value and Health Benefits
Green beans are a good source of dietary fibre, vitamins A, C and K, and a range of minerals including iron and magnesium. They provide plant-based protein that can contribute to a balanced diet. The exact nutrient profile varies among the different types of green beans, but the overarching benefit is a low-calorie, high-fibre vegetable option that supports digestive health, heart health and general well-being. For those monitoring salt intake, prepared dishes can be seasoned thoughtfully with herbs, citrus and a modest amount of healthy fats to enhance flavour without relying on excessive salt.
Growing Your Own Types of Green Beans
If you are lucky enough to have a garden or allotment in the UK, growing your own types of green beans can be a rewarding endeavour. Beans prefer well-drained soil, regular moisture, and a sunny position. France, Italy and the British countryside alike celebrate the harvest of haricot verts and runners in late spring and early summer. For climbing varieties, provide a trellis or poles to support their growth, guiding the vines as they ascend. Bush beans, by contrast, are compact and will produce harvests more quickly. With careful succession planting, you can enjoy a continuous supply through the warmer months. Companion planting with lettuce, brassicas or corn can help to deter pests and improve soil health, while mulching maintains soil moisture during hot spells.
Culinary Inspiration: Quick Recipes with Types of Green Beans
Garlic-Sautéed French Beans
Blanch French beans for 2–3 minutes, then drain. Sauté in a hot pan with olive oil, minced garlic and a pinch of flaky salt until just tender and glossy. Finish with lemon zest and freshly chopped parsley. This simple preparation highlights the delicate sweetness of haricot verts and makes a bright side dish for grilled fish or roasted chicken.
Roasted Green Beans with Lemon and Thyme
Toss trimmed green beans with olive oil, lemon juice, garlic and fresh thyme. Roast at a high temperature for 12–15 minutes, turning halfway through for even colour. The result is a slightly blistered, caramelised finish with a citrus lift that pairs well with roasted meats or a vegetarian main featuring lentils or chickpeas.
Green Beans with Tomatoes and Herbs
In a skillet, soften onions in olive oil, then add green beans and halved cherry tomatoes with a splash of vegetable stock. Simmer until beans are tender and glossy, then finish with chopped basil or oregano. This is a comforting, affordable dish that works well as a side or a light lunch when served with crusty bread.
Frequently Asked Questions about Types of Green Beans
Are all green beans the same, or do they vary significantly?
There are differences in pod thickness, texture and flavour among the various types of green beans. Slender French beans offer a delicate bite, while Romano or yard-long beans provide more substantial flesh. The cooking time and preferred preparation can vary accordingly. While the base vegetable remains the same, each variety brings its own character to a dish.
Can I substitute one variety for another in a recipe?
Yes, you can substitute most green beans for each other in many recipes, but expect slight differences in texture and cooking time. If you are swapping a slender haricot vert for a broader Romano bean, you may need a bit longer to tenderise and you may want to chop Romano beans into shorter pieces to ensure even cooking.
What’s the best way to prevent green beans from becoming soggy?
The secret is to avoid overcrowding the pan and to use high heat for quick cooking, plus a brief sauté or blanch. Removing excess moisture before cooking and finishing with a quick blast of high heat helps maintain crispness and bright colour.
Conclusion
Across the landscape of cuisines and households, the world of types of green beans offers considerable diversity. From the refined, slender haricot verts of French tradition to the bold, flat Romano and the long, snaking yard-long varieties, there is a bean to suit every palate and every dish. By understanding the differences, you can select the right bean for the moment, cook it to the perfect texture, and appreciate the subtle flavours that green beans bring to the table. In the kitchen, as in the garden, exploring these varieties invites creativity and joy, enriching both everyday meals and special occasions with colour, crunch and colour.