A few popular examples are Calendula officinalis, Centaurea cyanus and Limnanthes douglasii. Ideal plants for this purpose include: coleus, pelargoniums, foliage begonias, small sunflowers, celosis – the list is endless! Our Greenhouse Growing Guide gives a month by month guide on what to grow and when. I happened to stumble upon your blog and love your growing vegetables in a greenhouse posts! Growing herbs in a greenhouse in winter The freshness of homegrown herbs makes all the difference to your cooked meals, and there’s no reason to miss out just because the seasons change. The roof vents should provide the majority of the ventilation, with the side vents only being used once the outside air is warmer. Spray promptly if you notice signs of their presence or investigate biological alternatives and remember that hanging good old sticky yellow fly catchers also has its place in your armoury! Now is also the time to prune conservatory climbers such as bougainvillea and passiflora. If your greenhouse is not already fitted with shades, do give us a call and we will be happy to advise you as to the cost and the best location for shades for your particular structure. Many summer bedding plants can be overwintered in a cold greenhouse, including fuchsias, marguerites and pelargoniums. Over-wintered fuchsias and pelargoniums can also be kick-started this month if the greenhouse is protected against frost – pot them on, increase the watering and start to feed them to encourage growth. You may be dreaming of a white Christmas and if snow is forecast, be sure to keep the shades on your greenhouse tightly rolled up on the ridge if you have these fitted to avoid damage to the shade from fallen snow. Ventilation is vitally important and you will have to make sure there is good air circulation inside the structure during the night as well as during the day. Exotic relatives of the cucumber, like the Kiwano -also known as the African horned cucumber - can be grown in a greenhouse all summer. The large purple aubergines - or eggplants - seen in the supermarket aren’t the only option: this fruit also comes in white ("White Casper") and purple striped ("Antigua") colours, as well as round ("Aswad") and elongated ("Fond May") forms. Below is a list of some of the more easy­to­grow selections for spring germination in a greenhouse. Plants that are actively growing may well need watering several times a week but remember over-watering can be as much of a hazard as under-watering! Keeping the door and vents open more frequently as the month progresses helps to keep humidity levels down and prevent disease. At first sight this seems like really good news for growers but ‘the devil is in the detail’ as they say. Lettuces, for example, are in the A steraceae (daisy or aster) family. August. Onions sown indoors this month will need transplanting into small pots before hardening off and planting out in late March or April. Be sure your lawn mower is in good working order! This is also an ideal opportunity to check over your greenhouse to see if you would like to make any additions to your fixtures, fittings or accessories in time for next year’s season. Most are more productive spending the growing season in a greenhouse. Alitex Limited,Torberry Farm,South Harting,Petersfield,Hampshire,GU31 5RG, UK. If you are growing shade-loving plants such as ferns, these will need to continue to be kept shaded. In almost a month from now, the pots can be moved into the main body of the greenhouse for an early July harvest. You can also grow conservatory or greenhouse plants that enjoy the year-round protection that a greenhouse provides.. There’s a lot to consider when siting and choosing a greenhouse. It's a great place to start for Greenhouse Beginners. Growing Tips for Beginners: Greenhouse Gardening 101 The Romans were recorded as the first to create greenhouses, specifically growing cucumbers for Emperor Tiberius. A greenhouse is also … West Midlands More than likely, you will have to make full use of shades and continue to damp down inside the greenhouse. For delivery times read: Mere Green Chambers, 338 Lichfield Road, Four Oaks, Remove shading and clean glass, framework and staging with garden disinfectant, Repair any cracks or holes which could cause heat loss, Ensure gutters and downpipes are not blocked with leaves, Keep greenhouse dry and cool, and ventilate on sunny days, Clean and tidy flower pots, trays etc and store neatly, ready for spring, Keep plants well lit but cover if possibility of frost, Water plants according to their individual needs, Don’t wet plants or staging to avoid diseases, Sow some bedding plants in heated propagator, ie, Water more often, but make sure soil not overwatered, Check for frosty weather and keep temperature constant, Heat greenhouse at night and ventilate during day, Watch for greenfly, whitefly and red spider mite and spray if necessary, Use capillary matting if beneficial for watering, Prick out Bedding Plant seedlings from last month and sow later seeds, Use shading on sunny days, or cover seedlings with newspaper, Keep watching for pests Feed growing plants regularly, Prick out last month’s Bedding Plant seedlings and harden off, Use shading, especially on south facing glass, Open all ventilators if necessary and open door, Damp down floors if weather sunny to cool and humidify greenhouse. The Royal Horticultural Society is the UK’s leading gardening charity. Continue to monitor the temperature carefully this month. "Leaf vegetable" ­­on the other hand­­ is kind of catch­all term for plants that are grown for their leaves, belonging to a wide variety of botanical families: not just brassicas. Hopefully this month brings warmer weather with it, in which case you will need to keep your greenhouse ventilated. Belonging to the botanical family Cucurbitaceae, these vining plants are often sown indoors, and transplanted out (or to a permanent, larger pot) once they have their first set of true leaves. Plants are actively growing this month and staking and tying should be done as plants grow. This is also the time to consult bulb-growers’ catalogues and to order bulbs for growing in pots in the greenhouse. Tel:0800 098 8877. Polytunnel Growing is a great alternative to greenhouse growing where funds are limited. Some ventilation will be necessary to remove condensation and to keep the air moving inside the greenhouse. Try to do this in the middle of the day and repeat for a few days to ensure success. A greenhouse allows you to grow vegetables all year round. Clean the frame and glass next, both inside and out, and take this time to check that gutters and roof valleys are free of fallen leaves and debris, as a build-up of these can cause blockages and encourage algae growth which can lead to leaks over time. Vents should be kept closed on damp or foggy days. Keep watch for fungal diseases however, as they tend to appear this month. . Other garden visitors such as butterflies looking for places to lay their eggs and even birds can find their way into the greenhouse through open vents and doors, bringing a different array of problems with them. To help prevent disease, take care when watering to ensure leaves are not splashed in the evening and never leave old leaves and fruit lying about. Cultivars like “Rainbow” boast brightly-coloured stalks, coming in shades like pink, red, orange, yellow, and white. Automatic roof vents (including Bayliss) will continue to open and close as they adjust to the day and night time temperatures and are a great aid in keeping the greenhouse as cool as possible in such circumstances. We’d be delighted to see you! In many cases, it’s wiser to sow just a few advance handfuls of seeds in pots or modules kept indoors on a windowsill or in a heated greenhouse. No doubt you will discover many new varieties that you will want to experiment with but do remember that the plants you decide to grow must be able to happily co-exist side by side – a multitude of plants all requiring widely different temperature, light and humidity levels are unlikely to thrive, unless the greenhouse has been designed from the outset to have separate partitioned zones in which different growing environments can be maintained. 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