Top Of The Crops - Celeriac

Growing Celeriac in a Polytunnel

Celeriac is not the easiest of vegetables to grow, mostly because it requires an extremely rich, fertile and moisture-retentive soil. A polytunnel where the soil has been amended and cared for well could be the ideal place to grow celeriac. This vegetable is a turnip rooted celery and the bulbous roots are good in soups, stews and a range of other recipes. A number of pests can be a problem for celeriac and so growing them in a polytunnel can also help as it is easier to control the environment and manage pest problems in a contained space. A diverse and resilient ecosystem is the best defence against excessive numbers of slugs, which can pose a problem for celeriac plants.

Sowing and Growing Requirements for Celeriac

Celeriac seeds come in a range of different varieties. Some are more bolt and disease resistant than others. Modern varieties have also been bred to reduce the knobbles on the bulbs and make these ugly vegetables easier to prepare in the kitchen. Sow two seeds to each pot in March and remove the weaker of the two seedlings before hardening off your seedlings and planting them out in their final growing positions between May and June.

When placing seedling in their final locations, make sure that the crown is not buried and firm the soil well around each plant. There should be a spacing of around 30cm between plants, 45cm between rows. Choose your planting location carefully and make sure that the soil is rich and fertile, with a good proportion of organic matter. Do not grow celeriac where there has been celery leaf spot in previous years and be sure to maintain a good system of crop rotation to protect against disease. If you do discover that you encounter problems with disease, you may choose to opt for a treated seed and more resistant varieties in the future.

It is important to keep celeriac well watered during the summer, especially during particularly dry periods. A good organic mulch will help to retain soil moisture and maintain a fertile and high potash growing medium. In the summer, remove the lower leaves from the plants and draw some soil around the bulbous base of each plant.

Leeks like similar growing conditions to celeriac and can be a good companion plant along with certain fragrant herbs which could help stop problems with celery fly and other pests. Other alliums may also help to confuse and/or deter pests.

Harvesting Celeriac

Celeriac can be lifted as soon as they mature fully, which will be from October onwards. Do not lift and store celeriac but rather leave them in the soil over winter until they are needed. Cover the plants with straw or fleece to shelter them from harsh winter weather and protect the bulbs until they are required.

Calendar

Sowing – March in pots
Planting – May to June
Lifting time – October to March

< Back

Swipe to scroll through tabs

About First Tunnels

We’re a close-knit bunch of skilled professionals who take an enormous pride in the quality and versatility of our products, But we’re enthusiasts too - we use our own products, and that means we’ve introduced lots of improvements and innovations over the years…based on first-hand everyday practical experience. We work hand-in hand with top growing experts. We even have our own allotment for some seriously hands-on gardening, often accompanied by communal summer and winter barbecues because all work and no play would be very dull!

Polytunnel Community

Reviewed by you, Followed by you, Liked by you and listened to by us. We have a strong online polytunnel community, 35k Facebook Fans, 10k Twitter Followers and over 3m YouTube Views. Our community of dedicated, passionate Polytunnel gardening friends, love to share their sowing tips, growing hints and harvesting secrets with each other. But more importantly for you, as a customer or a potential customer, you can post your comments in all their glory or gory details. Come and join the Polytunnel family.

Construction Help & Advice

Our six man construction team has a wealth of polytunnel construction knowledge and are more than happy to share tips and advice with any of our customers. Many of the team have been quite literally 'hands on' developing the First Tunnels vast array of construction videos and in depth instruction guides. Our construction team are available to answer your questions and help in whatever way they can. Simply call 01282 601253 on week days between 9am-5pm...PLUS weekend cover on 07801 601253, between 9am-5pm.

Frequently Asked Questions

We are proud of our products and the time that we have put in to making sure that all our products are first class. We understand that purchasing a polytunnel is a considerable investment, and whilst we have lots of help and advice on this site, Facebook, YouTube, Twitter and blog pages many people like to compare and contrast before they commit their hard earned cash to buying. To this end we have compiled a list of the most common questions and provide 10 top reasons why First Tunnels Polytunnels is the top choice.

Getting Growing

Part of the fun of owning a polytunnel is picking the brains of people who really know how to make the most of the real growing potential. So we're making it easy for you...with some of the best brains in the business! This site now includes features, produced exclusively for First Tunnels by Andy McKee and Mark Gatter - best-selling authors of 'How to grow food in your Polytunnel' and 'The Polytunnel Handbook'. We also have videos from BBC’s Gardeners’ Question Time presenter, Paul Peacock. We also have a host of growing guides from Sam Youd, presenter & judge for the Royal Horticultural Society & Tatton Park Head Gardener.

Other Useful Stuff

What better way to learn about company dependability, product quality and customer service than to hear it straight from other consumers? By giving customers the opportunity to share their First Tunnels shopping experience, we believe this is the best reflection of our companies’ product and service. To help reinforce credibility, popularity and reputation, we have subscribed to not one, not two...but THREE independent review companies. We value all feedback, good, bad or ugly and hope to build a long lasting relationship with our customer, through our high quality products and friendly service, to ensure they do not hesitate to order again and again with First Tunnels in the future.