April sowing list

You can still sow most of the vegetables I have mentioned in previous months (e.g. radishes, spinach, lettuce, courgettes, spring onions…) but here are some new ones that you have to wait until April for:

Runner-Beans – Firestorm, St George, Borlotti, Cobra, Wisley Magic, Desiree, Moonlight

French Beans – Monte Cristo, Cobra, Maxi, Dulcina, Speedy, Delinel

Squashes – Butternut squash (try Hawk), Honey Bear, Sunburst

Soya Beans – Elenor

Crystal Apple Cucumbers 

Cucamelons 

Sweetcorn – Swift (These could have been started indoors last month, I still have yet to sow mine…)

Cabbages

Parsnips – Gladiator

Asparagus 

Potatoes 

Jerusalem Artichokes 

Globe Artichokes 

Look at my other previous monthly posts for more ideas of what seeds to sow! 

 

Sweet Potatoes

It will never work… but I bought two Sweet Potatoes to ‘chit’… then we used one for supper because we decided a) it won’t work, they are too difficult to chit and then keep alive in England and b) if it DID work, we didn’t want that many! They were giant… 

Sweet Potatoes are famously difficult to grow in England because of our bad weather in comparison to South America or Africa where they thrive. We should really stick to our normal potatoes, which is fine by me because I think they go with more meals, but it is fun to try out these new vegetables. Despite its name and look, sweet potatoes are nothing like potatoes. They taste different, are from a different family etc. They are a completely different vegetable hence why we decided we might as well give it a go and try growing one despite the odds being pretty much stacked against us! If you buy your sweet potatoes to grow properly online (which is probably better than me getting one from the market, this process has a very poor succession report) then they will arrive often as plug-plants to make things easier. Read on to find out some interesting history, nutrition and how to grow facts about sweet potatoes, as well as a yummy recipe at the bottom… 

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Sweet Potato (Ipomoea batatas) is a dicotyledonous plant that belongs to the morning glory family Convolvulaceae. Its large, starchy, sweet-tasting, tuberous root are a root vegetable. They are also known as yams (although the soft, orange sweet potato is often called a “yam” in parts of North America, the sweet potato is botanically very distinct from a genuine yam (Dioscorea), which is native to Africa and Asia and belongs to the monocot family Dioscoreaceae), or kumara. Sweet potatoes are only distantly related to potatoes, they aren’t from the same ‘family’ but that family is part of the same taxonomic order as sweet potatoes, the Solanales. Although the sweet potato is not closely related botanically to the common potato, they have a shared etymology. The first Europeans to taste sweet potatoes were members of Christopher Columbus’ expedition in 1492. Later explorers found many cultivars under an assortment of local names, but the name which stayed was the indigenous Taino name of batata. The Spanish combined this with the Quechua word for potato, papa, to create the word patata for the common potato. The first record of the name “sweet potato” is found in the Oxford English Dictionary, 1775.

The plant is a herbaceous perennial vine. It bears alternate heart-shaped or palmately lobed leaves (sometimes eaten as a green) and medium-sized flowers. The edible tuberous root is long and tapered, with a smooth skin. The colour ranges between yellow, orange, red, brown, purple, and beige. Its flesh ranges from beige through white, red, pink, violet, yellow, orange, and purple. Sweet potato cultivars with white or pale yellow flesh are less sweet and moist than those with red, pink or orange flesh.

The origin and domestication of sweet potato is thought to be in either Central America or South America. In Central America, sweet potatoes were domesticated at least 5,000 years ago. In South America, Peruvian sweet potato remnants dating as far back as 8000 BC have been found. The sweet potato was grown in Polynesia before western exploration. Sweet potato has been radiocarbon-dated in the Cook Islands to 1000 AD, and current thinking is that it was brought to central Polynesia around 700 AD, possibly by Polynesians who had traveled to South America and back, and spread across Polynesia to Hawaii and New Zealand from there. Sweet potatoes are cultivated throughout tropical and warm temperate regions wherever there is sufficient water to support their growth. Due to a major crop failure, sweet potatoes were introduced to China in about 1594. The growing of sweet potatoes was encouraged by the Governor Chin Hsüeh-tseng (Jin Xuezeng). Sweet potatoes were introduced as a food crop in Japan, and by 1735 was planted in Shogun Tokugawa Yoshimune’s private garden. It was also introduced to Korea in 1764. Sweet potatoes became popular very early in the islands of the Pacific Ocean, spreading from Polynesia to Japan and the Philippines. They are featured in many favorite dishes in Japan, Taiwan, the Philippines, and other island nations. Uganda (the second largest grower after China), Rwanda, and some other African countries also grow a large crop which is an important part of their peoples’ diets. The New World, the original home of the sweet potato, grows less than three percent (3%) of the world’s supply. Europe has only a very small sweet potato production, mainly in Portugal.

The plant does not tolerate frost. It grows best at an average temperature of 24 °C, abundant sunshine and warm nights. Not really suited to the UK. Annual rainfalls of 750–1,000 mm (30–39 in) are considered most suitable, with a minimum of 500 mm (20 in) in the growing season. The crop is sensitive to drought at the tuber initiation stage 50–60 days after planting, and it is not tolerant to water-logging, as it may cause tuber rots and reduce growth of storage roots if aeration is poor.

Unlike normal potatoes, sweet potatoes are grown from ‘slips’. These are the long shoots that have been removed from ‘chitted’ sweet potato tubers. ‘Slips’ don’t have roots, although sometimes there are signs of small roots beginning to appear. The roots will grow once the ‘slip’ has been planted. Whilst it is possible to grow your own ‘slips’ from supermarket sweet potatoes, most supermarket varieties are not sufficiently hardy to grow well in the UK so crops are likely to be disappointing.

When they arrive the ‘Slips’ will look withered, but place them in a glass of water overnight and they will quickly recover. The next day you can plant them up individually into small pots of multi-purpose compost. When planting sweet potato slips, it’s important to cover the whole length of the stem, so that it is covered right up to the base of the leaves. Sweet potato plants are not hardy so you will need to grow them on in warm, frost free conditions for 3 weeks or more until they are established. Warm, humid conditions will quickly encourage the slips to produce roots. They will most likely need to be grown completely inside a greenhouse in the UK climate in large pots filled with good compost and lots of feeding. Sweet potatoes have a vigorous growth habit and long sprawling stems. In the greenhouse it may be useful to train the stems onto strings or trellis to keep them tidier.

Varieties to consider:

‘Georgia Jet’ – considered to be particularly reliable.

‘T65’ – its red skins contrast nicely with the creamy, white flesh.

‘Beauregard Improved’ – a best selling variety, producing smaller tubers with a lovely salmon-orange flesh.

‘O Henry’ – richly flavoured, has a slightly different, bushier habit than other varieties and produces it’s tubers in a cluster which makes for easier harvesting.

Sweet potatoes can be used soon after harvesting, but they will store well for several months if the skins are cured properly. Lay them out in the sun for a few hours immediately after harvesting and then move them to a warm, humid place for 10 days – a greenhouse is ideal. Once the skins have cured they can be stored in cooler conditions provided that they are kept dry. In late summer, approximately 12 to 16 weeks after planting, the foliage and stems start to turn yellow and die back. Now is the time to start harvesting sweet potatoes, although they can be left longer if you prefer larger tubers. If outdoor grown, lift them before the frosts or they will be damaged.

Sweet potatoes are an excellent source of vitamin A (in the form of beta-carotene). They are also a very good source of vitamin C, manganese, copper, pantothenic acid and vitamin B6. Additionally, they are a good source of potassium, dietary fiber, niacin, vitamin B1, vitamin B2 and phosphorus.

Sweet potatoes can replace a normal potato in any recipe, but they do have a slightly sweeter taste so some things might not go with it as much (I can’t quite picture my all-time favourite baked potato and baked beans being quite the same with the sweet potato). I’ve had sweet potato stews that were yummy, curried sweet potato recipes are out there, sweet potato salads, baked and stuffed with humous, tofu, lentils, coronation chicken, ham, bacon, eggs. We’ve seen the sweet potato brownies and muffins and breads (have not tried any of these, I must admit). I like them boiled with greens and cheddar cheese – they go very well with cheese. In fact, the best meal that includes sweet potato that I have had is Cauliflower-Sweet Potato-Cheese. Now that is a good combination. And here is a recipe:

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Cauliflower-Sweet Potato-Broccoli-Cheese

(Serves 6) 

  • 1 large cauliflower
  • 1 large sweet potato
  • 1 large broccoli

For the cheese sauce: 

  • 7g butter
  • 1/2-1tbsp plain flour
  • 300g-400g grated cheddar cheese
  • 1/2 pint of milk
  1. Bring a large pan of water to the boil. Rinse and cut up the cauliflower into pieces. Peel and cut up the sweet potato into small chunks. Put both in the pan of water and reduce the heat to low. Boil for 5 minutes before rinsing and cutting up the broccoli and adding it. Boil for about another 5 minutes or until all the vegetables are cooked.
  2. To make the cheese sauce: Put the butter in a saucepan over a high heat to melt. Add the flour, stirring. Take off the heat and stir until combined. Add the milk, a little at a time, stirring. Warm it up over a high flame, stirring. Wait until it bubbles, then turn it down and let it simmer, so it is a thick sauce. Turn of the heat and stir in the cheese a little at a time until dissolved.
  3. Turn the grill onto high or the oven to about 180C.
  4. In a large ovenproof dish, scrape the drained vegetables into the bottom and scrape the cheese sauce over the top. Scatter extra grated cheddar on top, if you would like to have a crispy topping. Place under the grill or in the oven and cook until it is brown on top (it will be a few minutes under the grill, longer in the oven).
  5. Serve hot, with more vegetables like peas or runner beans if you would like.

My other favourite variation is Cauliflower-Potato-Courgette-Broccoli-Cheese. Yum. 

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Aubergine

January is the month to keenly get ahead and start sowing your aubergine seeds indoors!

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Aubergine (Eggplant, American and Australian or brinjal, Asian and African), Solanum melongena, is a member of the nightshade family, grown for its edible fruit. A Solanum, it is related to the tomato, pepper and potato. Like its cousin, the Tomato, the Aubergine’s popularity was stifled in Europe and North America until relatively recent years due to its association to nightshade. Where as the Tomato was believed to be poisonous, the Aubergine was believed by superstitious Europeans to induce insanity and was unaffectionately known as the “Mad Apple” until only a few centuries ago.

It is a delicate, tropical plant that is only half-hardy – meaning it stays put indoors in rainy England. The stem is often spiny, the flower whitens to a pretty light purple. Botanically classified as a berry, the fruit contains numerous small, soft seeds that, though edible, taste bitter because they contain nicotinoid alkaloids like the related tobacco.

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Aubergines have been cultivated in southern and eastern Asia since prehistory. The Aubergine’s scientific name “Melongena” is an ancient name for Aubergine in Sanskrit. About 500 B.C. Aubergine spread into neighbouring China and became a culinary favourite to generations of Chinese emperors. The Chinese saw the Aubergine differently than the Indians did and soon developed their own unique varieties. In particular, they preferred smaller fruited Aubergine, as well as differing shapes and colours. The first known written record of the plant is found in Qimin Yaoshu, an ancient Chinese agricultural treatise completed in 544.

From India and Pakistan, the Aubergine soon spread West into the Middle East and the far west as Egypt and northward into Turkey. The Turks alone are believed to have over 1000 native recipes calling for the use of Aubergine in many different ways. The Moors introduced the Aubergine to Spain were it received its Catalonian name “Alberginia”. The numerous Arabic and North African names for it, along with the lack of the ancient Greek and Roman names, indicate it was introduced throughout the Mediterranean area by Arabs in the early Middle Ages. The vegetable soon spread throughout Europe. The 16th century Spaniards had great respect for the Aubergine and believed its fruit to be a powerful aphrodisiac, an “Apple of Love”. The Italians too, held the Aubergine in very regard and called them “Melanzana”. The English were responsible for coining the name “Eggplant” in regards to a variety with egg shaped, white fruit that they became familiar with, yet strangely, they refer to them today by the French name of Aubergine, which is a corruption of the Catalonian name “Alberginia”. A book on agriculture published in 12th century Arabic Spain described how to grow aubergines. There are records from later medieval Catalan and Spanish. The aubergine is unrecorded in England until the 16th century.

Because of the plant’s relationship with other nightshades, the fruit was at one time believed to be extremely poisonous. The flowers and leaves can be poisonous if consumed in large quantities. It has a special place in folklore. In 13th century Italian traditional folklore, the Aubergine can cause insanity. In 19th century Egypt it was said that insanity was “more common and more violent” when the Aubergine is in season during the summer months.

In 2013, global production of Aubergines was 49.4 million tonnes. More than 1,600,000 hectares (4,000,000 acres) are devoted to the cultivation of Aubergines in the world. 57% of output comes from China alone, followed by India, Iran, Egypt and Turkey as the following top producers.

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Aubergines require a little attention when grown at home. They like sun and are easily knocked off their steady course to maturity so they should be grown under cover.

I start mine off under cover in January otherwise they never seem to grow/develop fruit during the year. February-March is kind of the final deadline.  I start them off in compost in old tall yoghurt containers with holes punctured in the bottom to release water. I place them in a seed tray in the warmest room in our house (my dad’s bedroom is my propagator) and when they have germinated, I put them on the windowsill to get lots lot light during the day before putting them on the floor by the radiator again at night to keep them warm. Once they are big enough and the weather has improved, I pot them on in very large pots of compost in our greenhouse. As the plant grows, it must be supported by sturdy canes. Fortnightly comfrey or seaweed feeds will help to encourage the flowers to fruit. Mr Fothergills recommends spraying the flowers to encourage fruit to set. Be careful- those pretty purple petals are easily damaged.

I have tried growing ‘Black Beauty’, a popular breed. I was given some long, thin, purple-marbled styled ones (that I don’t know the name of) by a friend to grow last year. They unfortunately were not very delicious – they just would not ripen or swell properly. Other recommendations by research suggests: Moneymaker, Rosa Bianca and Slim Jim (especially if you live in the chillier North).

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You will hopefully be able to harvest from August-October. Don’t wait for the aubergines to reach supermarket size, just like courgettes or cucumbers. Snip them off whenever they reach 8cm in length and up to 18cm or so. Mark Diacono, Otters Farm, suggests salting aubergine slices for half an hour, rinsing them, patting them dry, before using as this can get rid of bitterness.

It will mostly be the weather/growing conditions that injure your crop. Otherwise known pests are aphids and red spider mites. Companion planting with basil is one human approach or parasitic controls.

Aubergines are an excellent source of dietary fibre. They are also a good source of vitamins B1, B6 and potassium. It is high in minerals copper, magnesium and manganese. Aubergines are rich in antioxidants, specifically nasunin found in aubergine skin – which gives it its purple colour. A potent antioxidant and free radical scavenger, nasunin has been found to protect the lipids (fats) in brain cell membranes. Cell membranes are almost entirely composed of lipids and are responsible for protecting the cell and helping it to function. The lipid layer is crucial for letting nutrients in, wastes out and receiving instructions from messenger molecules that tell the cell what to do. Research indicates that phenolic-enriched extracts of Aubergines may help in controlling glucose absorption, beneficial for managing type 2 diabetes and reducing associated high blood pressure (hypertension). Aubergines may also help to lower LDL cholesterol levels, likely to due to nasunin and other phytochemical in the fruit.

Aubergines come in a wide array of shapes, sizes and colours. The varieties range from dark purple to pale mauve and from yellow to white. The longer purple variety is the most commonly eaten. Aubergines have a very neutral taste, which allows them to be combined with many other ingredients. They are especially good when prepared with garlic (think Baba Ganoush dip) and herbs such as marjoram and basil.

A fresh aubergine is firm and has a smooth, very glossy, dark purple skin and white, spongy flesh. A ripe aubergine has a matte gloss and yields slightly under finger pressure. Its weight must be in proportion to its size: excessively light aubergines can be limp and dehydrated.

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Aubergine is used in plenty of cuisines worldwide. They are curried in India; they are also roasted, skinned, mashed, mixed with onions, tomatoes and spices and then slow cooked gives the South Asian dish gojju. Another version of the dish, begun-pora (charred or burnt), is very popular in Bangladesh where the pulp of the vegetable is mixed with raw chopped shallot, green chilies, salt, fresh coriander and mustard oil. Sometimes fried tomatoes and deep-fried potatoes are also added, creating a dish called begun bhorta. In a dish called bharli vangi, brinjal is stuffed with ground coconut, peanuts and masala and then cooked in oil. Aubergines are also deep fried as in the Italian parmigiana di melanzane, the Turkish karniyarik of the Turkish and Greek moussaka (yum).  It can be sliced and deep fried, then served with plain yoghurt (optionally topped with a tomato and garlic sauce), such as in the Turkish patlıcan kızartması (meaning fried aubergines), or without yoghurt, as in patlıcan şakşuka. Perhaps the best-known Turkish aubergine dishes are imam bayildi (vegetarian) and karniyarik (with minced meat). There are PLENTY of recipes from different cuisines worldwide to choose from, take a look on they internet to be inspired! One of my favourites of all time is the dip baba ganoush: roasted aubergine, blended in a food processor along with tahini paste, lemon juice, diced raw garlic, salt and pepper and served with raw parsley sprinkled on top, a mixture of your favourite salad leaves and Manneesh (sesame and thyme coated flatbread) for dipping – delicious with homegrown boiled potatoes or rice too. It is like another version of humous (which we all know I’m a fan of…).

Aubergines are also stewed in the classic French Ratatouille and here I offer my recipe that I used to cook the (few) Aubergine I managed to grow/harvest 2016 season. If you are lucky, you will be able to make the entire dish using homegrown produce!

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Ratatouille 

(Serves 2)

  • Olive oil, for frying in
  • 1/2 – 1 onion, sliced
  • 1 aubergine, sliced into small chunks
  • 1 courgette, sliced into discs
  • 1 red pepper, sliced into small chunks
  • 1-2 garlic cloves, diced
  • 200-400g fresh tomatoes, sliced in half
  • Salt and pepper, for seasoning
  1. Heat the oil in a large pan. Fry the sliced onion and aubergine, turning it down to simmer.
  2. Add the sliced courgette and pepper. Add the diced garlic and the tomatoes, stirring to combine.
  3. Leave to simmer for at least 15 minutes – 30 minutes, the longer the better, stirring now and then.
  4. Once the vegetables are tender and the tomatoes have broken down, releasing their juices to become a sauce, add salt and pepper for seasoning and remove from the heat and serve hot in dishes.

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Storing your pickings

So there are plenty of fruits and vegetables in the world and only so many hours to talk about how to store them. Perhaps we should start with what is around right now and work from there?

Salad leavesLettuce, rocket, watercress and other cresses, like land cress or crinkle cress, (watercress wilts quickest) and spinach (wilts second quickest) are best eaten straight away once they have been picked and washed. To store it, I put mine in containers in the fridge mostly because I know I will be using it over the next few days. Other people keep theirs in plastic bags or between kitchen roll. If you have left the salad out for too long and it has wilted, leave it in a bowl of cold water to rejuvenate it before refrigerating it immediately. You can freeze green leaves, like spinach or lettuce but they will be incredibly soggy and are only useful for cooking. You might as well stick to fresh leaves rather than freezing them.

Carrots – If you are using them over a couple of days then they can be again kept in the fridge in a plastic bag or a container. Otherwise, the traditional way of storing them is in a cool, dark place in a box filled with dry sand. This can also be done to swedes, celeriac, sweet chestnuts, parsnips, celery and beetroot (celery will keep in the fridge for ages. Swedes and celeriac can be left in the ground for months at a time).

Peas – Best eaten as soon as they have been podded if consumed raw. If they are slightly too old to be delicate enough to eat raw, pop them into a pan of boiling water for 2 minutes, drain and serve. To freeze them, once you have boiled them, place them in freezing ice-cold water for a few minutes until cool. Place them in plastic bags ideal for the freezer, make sure no air has been caught inside. Freeze them and use over the next few months. This is the same technique for runner beans, broad beans or sweetcorn (by the way, sweetcorn loses its taste rapidly after being picked. It needs to be cooked and eaten or frozen asap).

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Pod and eat peas and broad beans boiled straight away or freeze after boiling and cooling briefly

Onions – Once pulled out of the ground, lay them out on newspaper to dry out, turning them over so that both sides are dealt with. Then, suspend them from the ceiling in a cool room or inside hessian/netted sacks. We use our utility room as it is very cool and is not too light.

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Dry onions out on newspaper before hanging up

Garlic – harvest the bulbs whole from the ground and place in a cool, dark place. We keep ours on a low-down shelf in out kitchen. When using, take one segment from the  entire garlic bulb at a time, peel and use. From my experience, homegrown garlic tends not to keep as long as shop bought garlic so only pull them up from the ground a little at a time, don’t be tempted to harvest them all at once.

Potatoes – I worked out last year that potatoes can be left in the ground for a long time and you do not need to rush to dig them up unless you have a wire worm or slug problem. Even if they have blight, they will keep better in the ground rather than out of it. However, to store them once they have been harvested, copy the same technique used for drying onions, laying them out on newspaper and turning them over. Then put them inside hessian sacks in a dark place, like a cupboard under the stairs to prevent them from turning green and becoming unusable.

Berries – If you can’t eat them all fresh at once because you have a glut or want to spread them out for later in the year, freeze them in plastic bags or containers once they have been washed and slightly dried. To use them, defrost well and drain the excess liquids that will taste a little to fridgey. Some berries like raspberries, blueberries or grapes should taste fine uncooked once they have been frozen. Other berries, like strawberries, have such a high water content that they will taste strange once defrosted raw. I prefer to use my frozen fruit for jam or inside cooked puddings, like muffins, cakes, stewed fruit dishes, crumbles or pies. I save the fresh fruit for eating uncooked.

Summer squashes: Courgettes – You might have been starting to pick some already. These are best sliced from the plant, washed and cooked straight away but can be stored in the fridge for a couple of days, depending on the variety and the ripeness of the vegetable. Best stored in an air-tight container or a plastic bag. Boil, fry, grill or roast them. Courgettes cannot be frozen because of their high water content, much like strawberries. Winter squashes (e.g. Butternut squashes and pumpkins can be frozen once they have been roasted – Slice, into small pieces, lay out on a baking tray and drizzle generously in olive oil. Roast in a preheated oven of 180C for about 40 minutes or until they are browned. Allow to cool. Place in plastic bags and freeze straight away). Courgettes and cucumbers will only become sloppy mush when frozen so do store them only in the fridge or eat straight away.

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Courgettes are best eaten straight away or stored in a fridge – do not freeze them or cucumbers (below)

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Cabbages: Can be stored whole in the fridge for a few days. If the outer leaves start to brown, wilt too much or go mushy, peel them off and discard them and use the rest if unaffected. If cooked, cabbages can last in a container for about three days. This is the same for cauliflower and broccoli (broccoli seems to brown slightly quicker out of the two when stored in the fridge).

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Romanesco cauliflower prepared for boiling

Spring Onions – Can be kept in the fridge for a couple of days. If the outside skin starts to dry up or the stem wilts too much, cut and peel the outside coating off and use what is underneath if it is unaffected.

Radishes – Likewise, they can be stored whole in the fridge or cut up and kept raw in a container for about two or three days before they will start to brown and become un-appetising.

Kale – Store in an air-tight container, raw, for up to a week maximum inside the fridge. Once cooked, store in a container for two or three days in the fridge.

Oriental greens – Think Pak Choi, Tatsoi, Komatsuna, Chinese Cabbage, Mibuna, Mitzuna, Mizpoona… Once cooked, they can be stored for about two days. Raw, they might be able to last a little longer in the fridge before they wilt or turn to liquid. Treat them more like spinach, liable to becoming soggy after some time being picked.

Tomatoes – It might be slightly early to write about tomatoes but it is getting close enough. I did not know until last year that tomatoes keep their looks and taste longer if stored outside the fridge. Gardner James Wong (‘Grow for Flavour’) suggests keeping them in a fruit bowl. We tried this last year and it does work well. It also allows some of the slightly under-developed ones to ripen. If freezing the tomatoes, dunk them briefly into a pan of boiling water to shed their skins before placing them into cold water, likewise for the beans and peas. Store in plastic bags in the freezer and use in dishes where you would use cooked/tinned tomatoes or make tomato chutney.

 

That is it for now. More coming soon…