Showing posts with label growing organic vegetables. Show all posts
Showing posts with label growing organic vegetables. Show all posts

Friday, November 13, 2015

How to grow vegetables and herbs the organic way


To prepare your organic growing area – whether it is a pot, single bed or a large allotment – see Managing your soil and Home composting. It will help you to create the perfect soil - that has nutrients and texture to provide life for your plants.

The best place to start is by downloading the Organic Growing Guidelines. These are a code of practice, designed with a helpful traffic light system, to help you on your organic growing journey - whether you are a complete beginner, want to convert to organic, or be reminded of good organic practice.

Our How to Grow cards cover a selection of vegetables, fruit and herbs – from artichokes to apples and turnips and thyme. See also weed management, and how to cope with pests and diseases the organic way.

Preparing your organic growing area
Your first battle might be with weeds. These compete with other plants for light, nutrition and water, so you need to clear them before you start growing. If your plot is small, you can dig the weeds out, making sure you remove the whole plant, plus root.

However,if your growing area is large, don’t try clear it all before planting. Hours of digging will only lead to back ache and the depressing sight of weeds returning. And if you resort to a blast of weed killer (glyphosate formulations), you are using toxic chemicals on the very area you want to grow your healthy fruit and veg.

Instead, divide the plot in half. One half you will dig, in the other you will feed the soil by using an organic mulch ie covering the soil to exclude light.

For the mulched half, cut down the larger weed foliage to just above soil level using a satisfying slash technique (you can use much of the foliage on your new compost heap, so long as there are no seeds). Then cover the area with a mulch that will exclude light. You can use a variety of materials to do this – a really thick layer of compost or well rotted manure (at least 15 cms deep) is ideal. This is known as the No Dig method. This can be topped by cardboard (add another layer of manure so it doesn’t blow away), or a black plastic membrane, pinned down. (Don’t use carpet – many of the dyes have toxic chemicals that can leach into your precious soil.) Leave this for at least 6 months. It’s that simple. You don’t have to do a thing, as the weeds will weaken in the dark and the earthworms do their work to enrich the soil.

Now dig the area where you want to start growing. Take out tough and woody weeds like docks, thistles, nettles and brambles, removing all the roots. See FAQs for how to deal with bindweed or brambles.

Then add as much compost as you can - one big wheelbarrow, or 5 large buckets, for every 5 square metres of ground. Dig this compost into the top 10 cms of soil, and your bed is ready for planting. If you want to sow seeds, use a rake to break down and gently flatten the topsoil into a fine texture (known as tilth) so the seeds can access soil and water to germinate.

If you are growing in containers, prepare your organic growing medium according to the plants you plan to grow. See Container growing.

Planning your planting
To grow vegetables organically, it’s important to plan what to grow and when - known as crop rotation. Changing where you grow each vegetable from year to year helps maintain good soil structure, ensures sufficient nutrients, helps to control weeds, and prevents a build up of pests and diseases.

You can devise your own rotation, just remember to keep a record of what you have grown, where and when. We show below a typical crop rotation process, which also includes when to add compost or grow green manures.

Firstly, divide your growing area into four or more sections. Then divide your crops into families (see below). If you keep the plants in these families together (such as potatoes and tomatoes), but move them around the different sections each year, you will have a successful crop rotation.

Vegetable Families

Alliums: Onion, garlic, shallot, leek
Brassicas: Brussels sprouts, cabbage, cauliflower, kale, kohl-rabi, oriental greens, radish, swede and turnips
Cucurbitaceae: courgettes, marrows
Legumes: Peas, broad beans, French and runner beans
Potato (Solanum): Potato, tomato
Roots: Beetroot, carrot, celeriac, celery, Florence fennel, parsley, parsnip (nb swedes and turnips are brassicas)
The charts below show an example of a 4-year rotation, including over winter planting, green manures and when to add compost.



Don't forget to leave space for perennials – such as rhubarb and asparagus – as well as many herbs, such as thyme, marjoram and mint (although the latter is best grown in a container to prevent it spreading!)

Now you are ready to grow!

Garden Organic is offering an introductory course focusing on how to start planning your organic garden - looking at crop rotation, ground preparation and more. Courses are held at Ryton Gardens throughout 2016 on 10 February, 13 April, 14 September, and 16 November. Further details and how to book here

See also the How to Grow cards for individual vegetables and herbs. Also see Pests and Diseases and Weed management. Soon you will be Harvesting and storing, as well as saving your seeds. We hope you enjoy the organic way. Not only are you safe from chemicals, but you are encouraging a healthy life for you, the plants and the planet.





Thursday, September 24, 2015

Growing vegetables in containers in organic garden

Growing vegetables in containers is easy, fun, and can save you money on groceries. Most vegetables traditionally grown in a yard can be grown successfully in containers. Choose containers large enough to hold the root systems of the plants you intend to grow. Vegetables grown in containers require daily watering, adequate drainage, and access to sunlight to thrive. Vegetable container gardening is a great way of introducing children to the joys of gardening and the benefits of eating fresh produce.


Growing vegetables in containers is becoming an increasingly popular hobby. It doesn’t require much space and, with a little care and attention, can generate enough produce to meet the vegetable needs of most small families. Follow this guide to vegetable container gardening and start enjoying the benefits of home-grown organic produce.

Getting started

Begin by choosing a suitable location to accommodate your container garden. Even though containers are easy to relocate, it’s important to start with a location that you know will provide your plants with sunlight and protection from climatic extremes.

Consider what you’d like to grow and in what quantity. You’ll get the most enjoyment out of your vegetable container garden if its

Containers

Choose containers that are large enough to hold the plants you intend to grow. Be careful to ensure that the containers you select accommodate the root systems of your chosen plants.

Available space and crop selection will determine the size and number of containers you’ll need. While small 6-10in diameter pots are appropriate for growing some herbs and even miniature tomatoes, you’ll need larger 15-25in containers to grow vegetables in.

Almost any type of container can be used if it provides good drainage through holes on the sides or bottom. Plastic or clay pots, old pails, bushel baskets, plastic buckets, wash tubs, wooden planters, or hanging baskets will hold vegetable plants.

Hanging baskets (perfect for growing strawberries) are a good way of using vertical space. Their height also affords plants additional protection from insect pests.

Vegetable selection

Just about any vegetable that will grow in your backyard garden will fair well as a container-grown plant.

Vegetables best suited for containers include tomatoes, peppers, summer squash, eggplant, green onions, beans, lettuce, radishes, parsley, and herbs.

Choose vegetable varieties specifically developed for growing in small spaces, for example those with compact, bush, or dwarf growth habits.

Seeding and transplanting

You can purchase transplants from local nurseries or grow them at home from seed. Both options are easy and uncomplicated.

Seedlings can be germinated in a range of different trays and containers – cutoff milk cartons, disposable trays, or old baking pans can be used to grow seedlings in.

Make sure the tray or containers you choose are at least 3 inches deep to allow room for roots to grow and have small holes for drainage so roots won’t rot in soggy growing mix.

Fill containers with an organic soil starting mix and cover seeds with ½ inch of soil. Position germinating seeds in a warm area that receives good sunlight.

Transplant seedlings in around 6-8 weeks when they develop their first five or six leaves. Be careful not to damage young root systems’ of seedlings while transferring to containers.

Soil

Container gardens require good quality soil that drains well, yet does not dry out too fast. Plain garden soil is inappropriate. It drains poorly in containers and, without worms and other living creatures to aerate it, becomes compacted quickly.

Choose a soil that has a loose texture and contains good quantities of coarse sand and organic matter. There are many high quality commercially-prepared organic varieties that will do the job well.

Pots, hanging baskets, and planter boxes can be heavy to move or suspend and are much easier to handle if soil weight is kept to a minimum. Select a light-weight growing mix.

Growing mixes containing perlite, a lightweight volcanic material heated to high temperatures to make it expand, is an excellent lightweight substitute for sand that provides much better drainage.

In hot and dry locations where soil moisture retention look for soil mixes containing vermiculture (heat expanded mica). This is a good lightweight substance for increasing the moisture retention ability of container soils.

Drainage

Inadequate drainage is one of the major reasons for vegetable container gardens failing. Most modern containers provide for adequate drainage but if not, you can always make some of your own holes.

If holes need to be made, drill four or more 1/4-inch holes evenly spaced around the bottom of the container.

To further help drainage, put about 1/2-inch of coarse gravel, small stones, or pieces of a broken clay pot in the bottom of each container. These items are not a substitute for drainage holes, however.

Watering

Vegetables grown in containers require routine watering. Aim to keep the soil moist but not waterlogged. One watering per day is generally sufficient.

Waterlogged soil starves plant roots of oxygen while dry soil causes plants to drop flowers and leaves. Monitor drainage and soil moisture retention.

Add mulch to the soil to minimize water loss if needed. Compost, straw, pine needles, grass clippings, and shredded bark are effective options.

Hanging baskets are extremely prone to drying out. Water twice daily in hot dry conditions. Treat window boxes in a similar way to hanging baskets.

Sunlight

Access to sunlight is important for producing quality vegetables. Most vegetables grow and produce best when grown in full sunlight.

Leafy vegetables (lettuce, cabbage, greens, spinach, and parsley) tolerate more shade than root crops (radishes, beets, and onions). Plants that bear fruit, such as cucumbers, tomatoes, peppers, and eggplant, require the most sun.

Ensure your organic vegetable container garden has access at least 5 hours of sunlight each day. If the containers you’re using aren’t too large, take advantage of the mobility afforded by container gardening to access additional sunlight where necessary.

Fertilizer

Supplying organic vegetable plants grown in containers with the nutrients they require is an important part of keeping them healthy and productive.

Vegetable plants grown in containers generally have shorter, more compact root systems than their yard-grown counterparts. This makes it more difficult for them to obtain adequate nutrition.

An organic liquid-based fertilizer can assist in overcoming this problem. A good quality liquid-based organic fertilizer will contain the important nutrients and micro-nutrients vegetable plants require.

Avoid the temptation to apply too much liquid fertilizer. Excessive amounts of nitrogen, phosphorus, and potassium causes salt build up and other problems.

Harvesting

Harvest vegetables as soon as they’ve reached full maturity. This is the time that they’ll be brimming with flavour and just waiting to be served. Avoid harvesting vegetables too early.

At the end of the harvest season, discard the plant and soil from the pot. Avoid the temptation to reuse the same soil for a second season of production. Infected soil or mix will spread disease into the second season unless it is properly composted. Properly composted planting media can be reused.

Pests and diseases

Vegetables grown in containers come under attack from the same insects and diseases that are common to any vegetable garden.

Routinely check plants for diseases and insects. Given the small numbers involved, physical removal of insect pests is generally sufficient. Treat plant diseases in the same way you would had the vegetables been grown in your yard.