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General gardening tips and hints

Pea Weevil and Pests

Pea Weevil and Pests

Pea Moth.

Sugar snap and mangetout can escape pea moth caterpillars when they are eaten small. White maggots feed inside the pods so damage is  only spotted at harvest. Pea moths Cydia nigricana attack legumes including  garden peas, sweet peas and vetch.

Pea and bean weevil

Pea weevil Sitona lineatus eat the edges of leaves and cause havoc with seedlings. If necessary a bug spray may be effective

Pigeons can destroy a crop and if they are a problem netting is the answer.

Leek and Onion – Allium Problems

Leek and Onion – Allium Problems

Leeks

Leek Moth

  • Will not affect ornamental alliums
  • White or brown patches develop where leaves ahve been eaten by caterpillars.
  • Larvae bore into bulbs or stems causing secondary rots.
  • More prevalent near the coast where two generations in May and October can cause problems
  • No effective insecticide for home gardeners
  • Keep plants well watered in summer for strong growth
  • In severe cases grow under fleece

Onion White Rot

  • Affects onions garlic shallots but less severe on leeks.
  • Symptoms include yellow and wilting leaves
  • Roots rot and leave mould and black sclerotia in the soil which can survive to cause problems for 8 years
  • Plants become loose in the soil and start to go soft.
  • Most severe in cool wet summers
  • Transmitted by contaminated soil not airborne
  • Control by destroying affected plants before sclerotia form. There is no chemical control.
  • Avoid spreading contaminated soil on boots.
Growing Regal Geranium Pelargonium

Growing Regal Geranium Pelargonium

reba-regal

Regal Pelargoniums or exotic Geraniums are getting more fancy and colourful. This pink frilled flower is called Reba Regal. I grow Regal pelargoniums for in house but they can go outside after the last frost although some flowers are a bit susceptible to rain damage.

Tips on Growing Regal Pelargoniums.

  • Pinch out the growing tips to get a bushy plant although most varieties are branching types.
  • Water Regals more  than standard pelargoniums and feed with potash feed as they near flowering.
  • Those with large blooms and ruffled petals need a sheltered spot such as in a porch where they won’t be spoilt by the wind or rain.

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Hydrangea Aspera Shrub

Hydrangea Aspera Shrub

The leaves of this Hydragea Aspera are one of its key features. As with other Aspera subspecies the branches and leaves are ‘strigose’ which botanically means ‘beset with appressed straight and stiff hairs’ that means rough and furry to me.

This  specimen shrub is 4-5 feet tall and whilst it comes from the Himalayas some plants can be a bit tender.

The Purple flowers open to a clear white (that is almost burned out on this photo) but the overall effect is pleasing. The flowerheads make good internal decorations.

The colouring of Hydrangea Aspera is not affected by aluminium or acidity of the soil.

Other Hydrangea species that are closely related include H.Involucrata, H. Strigosa and H.  Villosa.   H. Sargentiana is a taller more leggy coarse shrub brought from China by E H Wilson with a low growing H. Longipes and H. Galbripes.

For Complete Hydrangeas book click here and for cheap colourant click this link
Book Cover

Hydrangeas available from Thompson & Morgan

See Help to change Hydrangea colour

Tips for Growing Geraniums (Pelargonium)

Tips for Growing Geraniums (Pelargonium)

Pelargonium

There are two great uses for Geraniums that make it worth growing these fine flowering plants. Outdoors they make fantastic border plants and the red varieties are very popular in formal bedding schemes. The second use is as a long flowering houseplant and if you deadhead and feed you plants you will get lots of geraniums from one windowsill plant.

Geranium Cultivation

Grow from seed, plug plants or cuttings. They root quite easily from spring cuttings.
Plant out when the danger of frost has gone.
Geraniums can go straight into a border/bed or be put in containers, troughs or baskets.
Pinch-out the growing tip in April to encourage bushy plants.
Feed in summer with a high potash fertilizer to encourage more blooms.
Geraniums can survive with little water so can be planted in dry conditions but they do appreciate a drink like the rest of us.

Tips and Ideas for Planting Geraniums

Use one variety or colour and plant together to get a bold swathe of colour.

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Month by Month Gardening for Guru & Novice

Month by Month Gardening for Guru & Novice

Book Cover

The Royal Horticultural Society produce many books and this one, RHS Gardening Month by Month by Ian Spencer contains over 1,300 seasonal tasks. Covering tasks for every part of the garden, expert plant advice and lists of star plants from January to December it is a great confidence booster. When you have finished those tasks it will be time to start a new year!

Whether you are a green-fingered guru or are just starting out enjoy 12 months of successful gardening. With help on what to do when to ensure your plants are well cared for and your garden blooms all year round.
Easy-to-follow, this guide not only tells you what to do when, but shows you how to do it.
You only need to browse and not follow slavishly.

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Gorse with Spines and Prickles is a Weed

Gorse with Spines and Prickles is a Weed

Gorse

Ulex europaeus better known as Gorse, furze, furse or whin is a very prickly shrub of the pea family. Western gorse Ulex gallii is frequent in the western side of Britain and is relatively low growing yet robust. Dwarf gorse or Ulex minor is a low growing, sprawling shrub.

Gorse Facts

  • Gorse grows wild on heath and scrub land in the UK.
  • Gorse is closely related to the brooms with green stems, very small leaves and is adapted to dry growing conditions.
  • Common gorse flowers yellow in late autumn and through the winter. This picture was taken at the beginning of February 2011.
  • Gorse can be used as a hedge but beware the spines are really spikey.
  • Gorse is a valuable plant for wildlife, providing dense thorny cover ideal for protecting bird nests. The flowers and dead wood are eaten by insects.
  • Gorse grows in soils that are light, free draining and free from severe frosts.


Clearing Gorse

  • Due to it’s spiny nature, Gorse forms thickets that are impenetrable to animals and humans.
  • Gorse produces large numbers of seeds in seed pods which explode open increasing the area of seed distribution.
  • Seed may last for up to 100 years in the soil before conditions become suitable for germination.
  • For controlling small plants hand weeding is an effective method.
  • Other labour intensive methods of gorse control for larger plants include digging, slashing and cutting.
  • Burning can also be done, but stimulate more plant growth.
  • Herbicide treatment after spring flowering is a good time to carry out a gorse control programme.
  • Cutting and stump ‘pasting’ (treating the stump with chemicals) is also effective.

Gorse

Read about other Prickly Shrubs

Common Lawn Weeds Ruin Stripes

Common Lawn Weeds Ruin Stripes

Dandelion clock

Many common weeds found in lawns and grass are appealing wild flowers. They look best in a meadow setting and not in a manicured lawn.

Grass lines
Lawn with stripes nor weeds

Problems with Lawn Weeds

  • Low growing lawn weeds escape the cut of the lawnmower and can eventually create a mass of leaves that throttles the fine grasses.
  • Lawn weeds can host pests and disease and create unsightly flat patches by smothering the grass.
  • Lawn weeds are ugly or make a tidy lawn look unkempt.

Daisy  & DANDELION

Dandelions produce prodigious amounts of fertile seed that seems to germinate well amongst grass in the lawn.
Their deep tap roots need to be fully removed or killed to prevent a reinfestation of Dandelions. They can be spot weeded by hand or by using a spot-touch weed killer.

The common Daisy is a low growing weed that hugs the ground too smother the grass. They can develop large colonies and are often left untreated as they ‘look pretty’ and can make daisy chains.
Four-leaf Clover

Clover has tight heads of pink, yellow or white flowers with shamrock shaped leaves (Why sham rocks and not real ones?). It thrives in poor soil and runners can be intrusive. Feed the lawn and mow regularly and treat with selective weed killer if these treatments do not work. (pick the four leaved clover for luck!)

Plantains (bottom left)have large leaves that compete for soil nutrients depriving the grass.
Buttercups

Buttercups stunt neighbouring plants and creeps quickly over a lawn. There was not much stunting going on in this picture.

Use Good Culture to Control Weeds

  • Mow the lawn regularly with sharp blades. Set blades so the grass grows about 1″ long.
  • Feed your grass and encourage it to branch freely to thicken and discourage annual weeds and grasses.
  • Keep blades higher at the start of the season and in drought to conserve moisture.
  • Do not let weeds set seed. Remove flowerheads and seedheads and do not put seeds in your compost.
  • Treat weeds early before they have chance to get settled and grow.
  • Use chemicals only with care and when absolutely necessary.

Other Resources

Most Common Weeds
Uncommon Weeds
Weed control of Avens
Horsetail and Mares-tail
Why war with weeds
Credits
Four-leaf Clover by dalcrose CC BY-NC-SA 2.0
Buttercups by R~P~M CC BY-NC-ND 2.0

Dealing With Dandelions

Dealing With Dandelions

Oxford Castle
A sea of Dandelions

It is the time of the year where dandelions are popping up everywhere. This shot of Dandelion flowers is quite attractive (taken by Oxford Castle Mound). But, in the border and lawn dandelion is classed as a weed. In particular dandelion leaves will smoother the grass and make it weaker in the long term.

It is a tough weed, but definitely beatable.

For a small number of dandelions, I do recommend digging out the tap root with a trowel or custom weed trowel. The secret is to try and get as much of the root as possible. In practise, it is hard to get everything. But, it means that when it regenerates from a small bit of root, it will much easier to finish off with weed killer.

It is best to dig dandelions when the soil is dry as this makes it easier to shake off the soil surrounding the dandelion root.

If you don’t have time or energy to dig up dandelions, you can resort to a weedkiller which is designed for broad leaf weeds. You can either spray or paint it directly on to the leaves. It may need 2 to 3 treatments to finally kill them off.

Prevent Seeding.

Now is a good time to act, as if you let them go to seed, it will be just storing up more work for the future.
Oxford Castle

Dandelions aren’t the end of the world. This makes quite an attractive picture.

Eat Dandelions.

Another option is just enjoy the flowers and pick the leaves and flowers for salads. If you are really keen, you could roast the dandelion root to make a healthy organic dandelion coffee.

Related
Weedkiller for Dandelion

Book Cover

Roundup Weedkiller concentrate. Good for large areas which need treating at Amazon.

Related Posts

Controlling Moss in Lawn

Controlling Moss in Lawn

moss
Unfortunately, my lawn has a lot of moss (if you look closely) this is because I’ve gone for the ‘wildlife effect’ i.e. too lazy to mow the lawn.

Moss is a signal of a lawn with problems. To control the moss, it is important to tackle the underlying causes of moss.

Causes of Moss

  • Damp, poorly drained soil.
  • Dry sandy soils which are infertile.
  • Acid soil
  • Too Much Shade. Moss is almost inevitable in heavily shaded areas. You could cut back the trees, but, it can be a shame to remove a shady spot on the lawn. Don’t forget moss is not the end of the world.
  • Infrequent Mowing
  • Cutting too low

Basically, moss thrives where grass struggles to grow. The best way to prevent excess moss growth is to provide conditions for strong grass growth. This involves.

  • Well drained soil
  • Watering in dry spells
  • Regular grass feed and use of weedkiller.

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