Vonhaus walk in polytunnel greenhousegrow plants flowers fruits and vegetables all year round with the vonhaus polytunnel greenhouser spaciousa fantastic alternative to a traditional glass greenhouse or permanent structure this spacious 6msup2 walk in area polytunnel provides plenty of room for pots trays grow bags and shelving perfect for gardens and allotmentsr the ideal space for plants to grow heavy duty pe cover with extra long sides for weighting anchoring down protects against