Grow a full range of herbs in your greenhouse. Coriander. Thai basil. Thyme. Oregano. Rosemary. Vietnamese mint. Pick fresh herbs from your pot plants or planters and add them to your dinner. Raise happy plants in your large greenhouse. Plant earlier in spring. Keep your plants later into autumn. Water your plants. Make them happy and green. Lettuce when you need it. You will spend longer deciding on your plants to grow than building your polycarbonate greenhouse. Spend some time and build it right. Spend even longer getting the right plants to grow. Keep your plants safe in your plastic greenhouse. Avoid serious infestations of caterpillars locusts mites and more. Stop worrying as the rough weather rolls in. Plants love warmth and humidity. Give your plants their very own greenhouse to thrive in. Grow herbs and vegies out of season. Don't let weather bully you into growing in specific seasons.