Wholesale Flat Mushrooms in London

Heritage & Cultivation

Flat mushrooms (Agaricus bisporus) are harvested later in their growth cycle, allowing the cap to open fully and develop darker gills, stronger aroma, and deeper flavour. Once a seasonal treat, they are now cultivated year-round in climate-controlled environments across the UK.

Rushton’s works with specialist British growers, primarily in Herefordshire, Yorkshire, and Kent. Supplementary supply from the Netherlands and Poland ensures chefs can rely on Flat mushrooms throughout the year, even during peak demand.

Nutritional Profile

Flat mushrooms provide a strong nutritional profile alongside their culinary appeal:

• Excellent source of B vitamins (riboflavin, niacin, pantothenic acid)

• Provide selenium, potassium, and copper, supporting overall health

• High in dietary fibre, low in fat and calories

• Rich in umami compounds, enhancing savoury dishes naturally

• Suitable for vegan, vegetarian, and gluten-free menus

When are Flat Mushrooms in Season?

Flat mushrooms are cultivated year-round, with consistent quality across seasons:

• UK Production (All year): British-grown mushrooms form the core of our supply.

• European Partners: Dutch and Polish growers supplement availability and help stabilise prices during peak demand.

Rushton’s buying team inspects every batch to ensure large, intact caps, uniform colour, and robust texture.

Chef’s Corner

Flat mushrooms are celebrated for their ability to hold flavour and provide impact in plating:

• Grilled whole for traditional breakfasts and hearty sides

• Stuffed and baked with cheese, grains, or vegetables for centre-of-plate dishes

• Sliced into sauces or risottos to add deep umami character

• Charred or roasted for smoky intensity

• Marinated and seared for plant-based main courses

• Used as a base for vegetarian burgers or stacked with other ingredients

Complementary Ingredients

Flat mushrooms complement both simple and bold flavours:

• Garlic, thyme, and rosemary for classic Mediterranean dishes

• Cheese and cream for indulgent fillings and sauces

• Tomatoes, spinach, and peppers for plant-forward menus

• Beef, lamb, and game for hearty savoury combinations

• Balsamic vinegar and olive oil for clean, balanced preparations

• Smoked paprika or chilli to add warmth and depth

Sustainability & Delivery

Rushton’s Flat mushrooms are grown with sustainability at the forefront:

• Cultivated on composted agricultural by-products to reduce waste

• Produced in closed-loop facilities that recycle water and energy

• Packed in recyclable, breathable containers to preserve freshness responsibly

With six-day-a-week delivery across London, Rushton’s guarantees Flat mushrooms arrive in peak condition, ready to perform in the kitchen.

Elevate Your Menu with Flat Mushrooms

Flat mushrooms are the chef’s choice for flavour, versatility, and impact. With Rushton’s, you gain a partner who guarantees consistency, freshness, and sustainable sourcing across every order.