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General gardening tips and hints

Tips for Growing Gazania

Tips for Growing Gazania

Gazina mixed colours


Gazanas are brightly coloured flowers that are easy to grow on dry sunny sites. Many of the plants flower with a striped effect on the petals that open to resemble a 6 inch daisy. The leaves are a narrow grey-green or silvery and the plants grow 6-10 inches tall.

Choose the right variety. Seed is available in a range of varieties like Mini-star White, Tiger Stripes and the Kiss seriessuch as the ‘Kiss Rose’.
Harlequin are slightly larger, growing to 15” tall spreading 18” and come in a mix of colours.

How to Grow Gazania. If buying plants choose healthy well formed clumps of lower leaves. You can buy when at least one flower is open so you have an idea of the colour you are buying but a mix of hot oranges, yellows and reds is quite popular. If you grow from seed, sow 8 weeks before the last frost is expected and keep in the warm, then gradually acclimatise them outdoors.
Whilst the plants may survive British winters, you could take cuttings in Autumn and protect from frost, however, I would treat them as annuals. The plants produce lots of flowers but you can deadhead (cut off faded flowers) to encourage more blooms.

Where to Grow. Gazania is a bright filler plant for in between shrubs or any hot dry part of the garden. They grow happily at the seaside as they are not affected by salty air. Sandy, well drained soil, that Gazanias get in there native South Africa, is best. They are  also fine for window boxes, tubs or planters and can survive if you occasionally forget to water them.
The flowers are borne on short stems making them excellent for windy sites.
Aka the Treasure Flower, Gazania have delicately cut, silvery-white foliage which makes the plant a pleasure  with the bright blooms, opening in the sun and closing at night.

 

I have cheated for 2015. I have just bought a pot of germinated seedlings from our local garden centre. For £2.99 I got and pricked out 40 plants which I will grow on until May before planting out.

Useful Links

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Eating Nasturtium a Peppery Food Crop

Eating Nasturtium a Peppery Food Crop

Nasturtium

I think of Nasturtium as an ornamental, annual, flowering plant but my vegetarian children take a different view. For many vegetarians ‘Nasturtiums make a salad’. In the case of Watercress they also make a soup and a vegetable.

Growing Nasturtium Leaves, Flowers and Seed Pods

  • Grow Nasturtiums from seed in your vegetable patch.
  • Rich soil will encourage leaves at the expense of flowers. Nasturtiums grown for decoration need a poor soil.
  • Nasturtium seeds from Thompson & Morgan
  • Before planting Nasturtiums in containers make sure they are well rooted in smaller pots started under cover.
  • Watercress Nasturtium Microphyllum or Nasturtium Officionale are best grown from rooted cuttings. Rooting in water is relatively easy.

Salad: Watercress, spinach and apple.

Eating Nasturtium Leaves and Pods

  • The leaves of the nasturtium plant are edible, with a peppery flavour. They can be tossed into salads mixed with sweeter varieties of lettuce.
  • The flowers make a unique garnish to fresh foods and add a splash of colour.
  • The seed pods can be treated like Capers and pickled or used as a crunchy addition to salads.
  • For tastiest nasturtium leaves, keep the plants well watered, which helps to moderate the spiciness of the leaves and flowers. Keep a bit drier to add a sharper tangy flavour to your summer salads

nasturtiums

Growing Watercress Nasturtium Officinale

  • Watercress is called Nasturtium Officinale or Nasturtium Microphyllum
  • Watercress is traditionally grown in gardens with chalk streams or a good supply of water as a semi-aquatic plant
  • Buy watercress with roots on at your local supermarket
  • An ordinary bunch placed in a bowl of fresh clean water will develop roots. Discard any that turn yellow or do not root and plant the rest.
  • You can grow watercress in a container but keep it exceptionally well watered.

chicken watercress salad

Tip
Growing Nasturtiums near Brassicas can deflect greenfly and white fly on to the nasturtiums to protect your other crops.
Pickling the seed pods of Nasturtium produces a crop similar to Capers.

Nasturtium-FowlersVacola-Num10-9108

Credits
Nasturtium by Dvortygirl CC BY-SA 2.0
Salad: Watercress, spinach and apple. by ulterior epicure CC BY-NC-ND 2.0
nasturtiums by artolog CC BY-NC 2.0
chicken watercress salad by aquino.paolo CC BY-NC-ND 2.0
Nasturtium-FowlersVacola-Num10-9108 by graibeard CC BY-SA 2.0 Pickled Nasturtium seeds look like and taste similar to capers.
Nasturtiums by robynejay CC BY-SA 2.0

Nasturtiums

National Plant Collections Scheme Tips

National Plant Collections Scheme Tips

x-alstroemeria-mix

National Plant Collections have a membership scheme costing £25 p.a. They now have 650 collections in private gardens, allotments, nurseries, parks and botanic gardens throughout the country.

Collection holders undertake to document, develop and preserve a comprehensive collection of one group of plants in trust for the future.

A Heuchera collection is now at The University of Essex in Colchester. I couldn’t track down a national collection of Alstroemeria (above) but that must be an opportunity for someone.

‘The National Plant Collections Scheme is the flagship of Plant Heritage and is the prime mechanism for ensuring the survival of cultivated plant species and cultivars. Because of the involvement of botanic gardens, universities and expert horticulturists (both amateur and professional alike), the National Plant Collections Scheme has earned the respect of the horticultural world. This prestige helps the NCCPG as a whole. Reputation is important. It follows that prospective collections and their holders need to be carefully assessed, and existing collections properly monitored to maintain the standard of custodianship.’

Listings of Open Days appear in the National Collections Directory.

The Natural History and Gardening Book fair is at Caple Manor Gardens . I will try add to my collection of circa 500 books at the next fair. For more information on book fairs.

Top 10 Garlic Varieties

Top 10 Garlic Varieties

Garlic is increasing in popularity in the UK and a wide selection of varieties are now available. They grow well under glass or poly tunnel but also produce worthwhile crops in most sunny gardens and allotments.

Top Ten Varieties for the UK

    1. Solent Wight – a heavy cropper with large cloves
    2. Albigensian Wight – spring or autumn planting good keeper
    3. Purple Wight a ‘hard neck’ best used fresh as it is a poor storer
    4. Long Keeper large white bulbs to harvest in July from autumn planting.
    5. Early Wight another ‘hard neck variety’ with AGM in purple variety

Planting Garlic

  1. Luatrec Wight fat pink cloves with white outer skin and a good keeper.
  2. White Pearl autumn planted will store reasonalble well.
  3. Pink Lady a pink skinned bulbs and gloves that can be eaten raw.
  4. Germidore softneck variety that is well adapted to British conditions. Produces large, white bulbs with a mild but rich flavour.
  5. Chesnok Red a hardneck variety from Georgia with attractive purple striping and a lovely, full-bodied flavour. Lovely choice for baking as it has a lovely creamy texture. Great for garlic bread!

Garlic
Elephant Garlic would be in many best top ten lists but is closely related to the Leek side of the allium family   see Gardeners tips

To buy a selection of Garlic at Thompson & Morgan

Credits
Planting Garlic by Chiot’s Run CC BY-NC 2.0
Garlic by mrwalker CC BY-NC-SA 2.0

‘It’s that time of the year to plant garlic. I’ve read that you should plant it around fall equinox, which I missed by about a month. I received my planting garlic the day before we left on vacation and just planted it on Sunday. I ordered 2 garlic samplers from Gourmet Garlic Gardens again this year. Each year I’ve grown garlic, I’ve tried a few different method for planting. I’m hoping this year I’ll finally be able to grow nice big heads of garlic. Mine usually end up being small, but they’re still quite tasty. I chose a free-draining area of the front garden and amended the soil heavily with compost.

For specific varieties planted and planting directions from another site visit:  chiotsrun.com/2010/10/28/planting-garlic/’

For more information  read Tricks to get great garlic

 

Some Common Garden Weeds

Some Common Garden Weeds

Bindweed
Bindweed – Deceptively Attractive

Continuing on our theme of garden weeds – these are some of the most common garden weed types, which you will invariably have faced at some time.

Couch Grass.

A very common weed which spreads through a system of fine underground stems. On a dry day try digging with a fork and on regrowth try spraying with Glyphosate. Covering with a mulch or solid layer is a good way of weakening or killing the plant.

Horsetail

See Dealing with horsetail. Has been around for 60 million years, if you have some in your garden you will see why. One of the most difficult weeds to eradicate.

Nettles.

Quite easy to deal with. If you are not in a rush, make repeated cuts at the base of the plant and put stems on compost. Nettles make excellent compost and are an excellent mix of stems and leaves. Young leaves can even be eaten and are quite nutritious. Nettles are also good for wildlife.

To kill off the plant use fork or spade to lift up the clumb of yellowish roots. These are not too deep. Also responds well to weedkiller.
Dandelion

Dandelions

In spring these will suddenly grow very vigorously. Before you know it they will have set seed and will be a problem for years to come. Therefore, the best time to act is before they set seed in late April.

They have a simple long tap root. It is hard to lift up the whole tap root without breaking off the lower part which will send up new shoots. However, it can be satisfying to try and dig up the long single tap root. Will respond to repeated weed killer sprays.

Dock Leaves.

As the saying goes where there are nettles, there will also be docks. Similar to dandelions. long tap root and can easily regrow from the smallest part.

Bindweed.

Grows through deep connection of underground white roots. Also flowers (actually very attractive) and sets seed. The roots can be a pain to dig up. But, for deep infestations, it is best to try and dig up most of the roots.
One helpful tip is to put a cane in the ground. The bindweed will grow up the cane, making it easier to apply weedkiller and avoid surrounding plants. See Bindweed Control

Ground Elder.

– Another tough nut you don’t want to see in your garden. Can spread rapidly if left unchecked. Requires hard work to get rid of it.
Japanese Knotweed.

Could well lay claim to being the worst ever weed. If you have it in your garden Good luck – either that or consider moving. More on Knotweed

Willow Herb

More Common Garden Weeds

  • Broad Leaved Willowherb. Can set thousands of seeds. Not too difficult to deal with in small quantities.
  • Budleia – In one sense makes an attractive plant – loved by butterflies, but, has immense powers of reproduction, growing in most unlikely of situations.
  • Thistle. A good hoeing should be enough.
  • Cleavers. – Stick to your clothing. hoeing should be fine to get ride off.
  • Ramsons (Wild Garlic) tough weeds
  • Bittercress
  • Shepherd’s Purse
  • Broad Leaved Plaintain. – Not too bad.
  • Creeping Buttercup – a vigorous spreader. Can grow in middle of crass and through the border. Needs its roots tackling.
  • White clover – a common grass weed.
  • Ivy Leaved Toadflax
  • Ivy Leaved Speedwell

See also list of Uncommon Weeds

Weedkillers for Weeds

Book Cover

Other Resources

Common Lawn Weeds
Uncommon Weeds
Weed control of Avens
Horsetail and Mares-tail
Why war with weeds
Alligator weed

Alligator weed by Brisbane City Council CC BY 2.0 a snap of a weed I have never come across and have no wish so to do!

Warning – Problems of Japanese Knotweed

Warning – Problems of Japanese Knotweed

Knotweed problems have not gone away but panic isn’t the solution.
Not Knotweed

Warning About Knotweed

  • It is an offence to plant or otherwise cause the Japanese Knotweed to grow in the wild.
  • Japanese Knotweed is classed as ‘controlled waste’ and as such must be disposed of safely at a licensed landfill site and buried to a depth of at least 5 m.
  • This law also applies to the surrounding soil.
  • Infringement can result in an unlimited fine and you can also be held liable for costs incurred from the spread of Knotweed into adjacent properties.

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Go to War on Weeds

Go to War on Weeds

‘A weed is any plant growing in the wrong place’ – but some weeds are more wrong than others.
Unfortunately weeds are not weedy but more thuggee.

Book Cover
Weeds: The Story of Outlaw Plants: A Cultural History

Problems Caused by Weeds
At their worst weeds can take over and suppress all other growth.
Weeds take water and nutrition from the soil and rob your plants.
Other cultivated plants can’t fight weeds and give of their best at the same time.
Weeds can throttle and kill weaker species and cast a shadow over others.
Book Cover
Pest & Weed Expert:

Declare War
Before we get onto chemical warfare you can fight weeds at there own game.
Cover the weeds with a membrane to exclude light. Cardboard or layered newspaper may work and you can plant through this covering. Add at least 2″ of mulch and soil on top.
Hand weeding is the Rolls Royce method. You have to keep up to this job on a regular basis.
When digging over a patch take care to remove all perennial weeds and bits of their roots. (Don’t compost the roots).
Annual weeds can be hoed so the roots can’t access water and thus die.

Book Cover
The Book of Weeds

Chemical Warfare
Weed killers are available from most garden centres.
Glyphosphate is a systemic chemical that enters through leaves to kill roots. It is ineffective and dissipated as soon as it hits the soil. Spray in autumn and spring on growing weeds but avoid your cultivated plants.
Selective chemicals are available for lawns.

Book Cover
Weeds and What They Tell Us

Gardeners Special Tips
Do not let weeds seed. Cut off weed flowers even if you can’t remove them.
Do not compost seeding weeds as they may not be killed by the heat of the compost.
Kill weeds when they are young.
Early recognition and control of weeds leads to savings in the cost of herbicides and aggravation

Book Cover
Weed Seedlings Colour Atlas

Other Resources

Most Common Weeds
Common Lawn Weeds
Uncommon Weeds
Weed control of Avens
Horsetail and Mares-tail

Book Cover
The Weeders Digest (of edible weeds?)

Gardeners Tips on Ground Cover Plants

Gardeners Tips on Ground Cover Plants

Reasons to consider ground cover for your garden

  • Ground cover can be designed to be low maintenance
  • Good cover will soften edges and sides of paths
  • Soil on slopes or banking can be held in place
  • Difficult areas with access problems can be covered in style
  • Bare soil can be unsightly unless covered
  • Good plant selection can make a feature of ground cover
  • Ground cover can add balance and harmony within the garden

Vinca ground cover

Plants for Ground Cover Situations

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Dahlias of all Types with Tips

Dahlias of all Types with Tips

Hungry feeders and thirsty plants can repay a bit of support with oodles of colourful flowers.

Harewood Dahlia

Dahlia Types

  • Cactus or semi-cactus like this Dana, Super (red) or Morley Lass a pale yellow
  • Single flowered dahlias are open centred flowers up to 4 inches in diameter with a single ring of florets around a central disc. There are self colours or some bicolours.
  • Collarette similar to singles with a extra ring of shorter florets around the middle
  • Ball dahlias or the smaller pompon have tight spherical flowerheads
  • Decorative dahlias are classified for shows in large (over 10 inch blooms), medium, small and miniature sizes
  • Other miscellaneous dahlias that don’t fall into another category often linked to the flower formations of other plants like Chrysanthemeum, Anemone, Paeony, Orchid or Water-Lily forms.
  • Annual bedding dahlias from seed

Dahlia

Cultivation tips for Dahlias

  • Start tubers into growth in March in a frost free environment
  • Thin to 3 shoots and stop them if they get to 6 inches. Spare shoots can be rooted as cuttings.
  • Read More Read More

Pollinators For Green Gardening

Pollinators For Green Gardening

Flowers in May

The press have had a field day talking about the reduction in the numbers of bees. It is a problem gardeners can do a bit about but bees are not the only pollinators that need a timely helping hand.

Habitat for Pollinators

  • Health and safety are issues for insects just as they are for gardeners. Look after both.
  • Often forgotten, but insects need a source of fresh water. A shallow sloping bowl will provide a landing place for safe drinking.
  • Insects can be predatory but that is nature. Gardeners need to cater for all life and insects down the food chain to give beneficial insects the best chance of survival.
  • Pollen and nectar are key food sources for insects. see below.
  • Do not be obsessively tidy, leave places to hide, breed and sleep.
  • A log pile, rough grass, bed of nettles, brambles, old plant stems and ivy are worth cultivation ( I mean having but not cultivating)

Pollination

Health Issues for Pollinators

  • Do not use insecticides!
  • Do not use herbicides, they will kill off useful plants and chemical residues can alter the natural balance in a garden.
  • The aim should be to have a balance with nature allowing all living things a space in the green garden.
  • Pollination is less of an issue for the gardener who basically just wants healthy plants that are resistant to attack from all the environment can throw at them. In these cases optimum gardening can come from Integrated Pest Management or IPM.

Bee Happy

Food Sources For Pollinators

  • Flowers are key to feeding many insects.
  • Single flowers where the centre is accessible are great. Asters, daisies, herbs, dahlias, sages and buddleia are known for attracting insects
  • Native species of plant and wild flowers are likely to provide appropriate food sources rather than exotic imported or over bred or F1 plants.
  • Grow flowers for July and August when nectar and pollen food sources are surprisingly scarce.
  • Clover and lawn daisies can be encouraged in a lightly mown lawn.
  • Pot plants can add to the food store via cosmos, marigolds, tagetes and toadflax.
  • Grow plants that open sequentially up the stem like foxgloves so bees can feed without having to seek out new sources.

Pollination crocus

Pollinators Other than Bees

  • Mites, Ants and creepy crawlies.
  • Wind can blow pollen from one plant to another. Just look at the catkin pollen that gets blown around in spring or grass pollen on high pollen count days.
  • Moths and butterflies, birds, bats and beetles can often be species specific pollinators. Plants attract the pollinators they need by scent, colour and a range of individual techniques.

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Credits
Pollination Makes The World Go Around
Sympathy Planting and Vegetable Pollination
Grow Seedheads for Wild Life
Pollination of Crocus by Insects
Sarah Raven and Daily Telegraph for some of the food plant ideas.

What is Integrated Pest Management
Integrated Pest Management (IPM) is an effective and environmentally sensitive approach to pest management that relies on a combination of common-sense practices. IPM programs use current, comprehensive information on the life cycles of pests and their interaction with the environment. This information, in combination with available pest control methods, is used to manage pest damage by the most economical means, and with the least possible hazard to people, property, and the environment. Read more USA gov

Integrated Pest Management books from Amazon