Seeds to plant now:

Indoor or in a heated greenhouse

Ageratum

Alyssum

Aubergine

Bell Pepper, pepper

Cardoon

Celeriac

Celery

Columbine

Coriander

Cress

Cucumber

Floss flower, Ageratum

Forget-me-not

Ornamental Pepper

Pepper

Tomato

Outside

Alyssum

Amaranthus

Antwerp hollyhock, Fig-leaved hollyhock, hollyhock

Asparagus

Aubretia, Rock cress, Aubrieta, Aubrietia

Beetroot, Garden beet

Borecole, Kale

Bristly hollyhock

Broccoli

Brussels sprout

Cabbage

Carrot

Cauliflower

Common hollyhock

Hollyhock

Kohl rabi

Lettuce

Normandy sorrel

Onion

Ornamental winter kale

Radish

Spinach

Spinach, Summer spinach

Spring onion

Sweet corn

Sweet pea

Turnip

Outside under cover

Brussels sprout

Courgette

French marigold

Leek

Lettuce

Marrow

Onion

Snapdragon

Sweet corn

Tomato


Shows and events:

Update 15/04/2021
With the easing of lockdown in parts of the UK from April 12th, some shows and events have now changed dates or been cancelled altogether. I have checked the 2021 events listed below and have added comments where necessary.

I'll try to keep this list up to date as the situation changes. Regards Nick.

01/04/2021 - 30/04/2021

Arundel Castle and Gardens: Tulip Festival Virtual event Tulip Festival @ Arundel Castle and Gardens
Over 60,000 tulips have been planted in the Castle's gardens, they bloom from min-April through to early May producing one of the most impressive tulip displays in the country.
Arundel, West Sussex, BN18 9AB

Tulip Festival Tulip Festival

19/04/2021 - 25/04/2021

Hever Castle & Gardens: Tulip Festival Confirmed going ahead Tulip Festival @ Hever Castle & Gardens
Over 20,000 tulips will be in bloom around the grounds of Hever Castle and Gardens. The visitors can wander the tulip trail on their own. Pre-booking is essential.
Hever, Edenbridge, Kent, TN8 7NG

Tulip Festival Tulip Festival

25/04/2021 - 25/04/2021

Magnolia Open Day at Blakenham Woodland Garden Confirmed going ahead In celebration of bluebells and magnolias opening in support of the National Garden Scheme (NGS). Pre-booking is essential.
Blakenham Woodland Garden, Little Blakenham, Ipswich, Suffolk

Magnolia Open Day at Blakenham Woodland Garden Magnolia Open Day at Blakenham Woodland Garden

26/04/2021 - 02/05/2021

National Gardening Week  A nationwide scheme run by the RHS to celebrate, incentivise and encourage gardening.
Nationwide

National Gardening Week National Gardening Week

05/05/2021 - 09/05/2021

Three Counties Showground: RHS Malvern Spring Festival Now cancelled RHS Malvern Spring Festival @ Three Counties Showground
Information from show organisers: Due to the Coronavirus (COVID-19) pandemic and current Government advice all RHS shows have been cancelled until at least 30th June, 2020. For further details please see the RHS website (https://www.rhs.org.uk/about-the-rhs/policies/coronavirus-state
Three Counties Showground, Malvern, Worcestershire, WR13 6NW

RHS Malvern Spring Festival RHS Malvern Spring Festival

17/05/2021 - 21/05/2021

Online virtual RHS Chelsea Flower Show Virtual event With the cancellation of the RHS Chelsea Flower Show, the RHS is trying to impliment a virtual flower show. Details will follow soon.

Online virtual RHS Chelsea Flower Show Online virtual RHS Chelsea Flower Show

11/06/2021 - 13/06/2021

Three Counties Showground: Royal Three Counties Show Now cancelled Royal Three Counties Show @ Three Counties Showground
Food, drink, crafts, exhibits and entertainment, also includes International Orchid Show.
Three Counties Showground, Malvern, Worcestershire, WR13 6NW

Royal Three Counties Show Royal Three Counties Show

14/06/2021 - 14/06/2021

Royal Highland Centre: Royal Highland Show Virtual event Royal Highland Show @ Royal Highland Centre
Annual Scottish agricultural show. Exhibiting country pursuits, lifestyle, machinery and equipment.
Ingliston, Edinburgh, EH28 8NB

Royal Highland Show Royal Highland Show

18/06/2021 - 20/06/2021

RHS Garden Hyde Hall: Spring & Orchid Show Rescheduled date Spring & Orchid Show @ RHS Garden Hyde Hall
One of the earliest shows in the gardening calendar, showcasing spring flowering plants and orchids from around the world. This exhibition used to be at the RHS halls in London, 2021 sees the show move to RHS Garden Hyde Hall for the first time.
Creephedge Lane, Rettendon Common, Chelmsford, Essex, CM3 8ET

Spring & Orchid Show Spring & Orchid Show

25/06/2021 - 27/06/2021

RHS Garden Harlow Carr: RHS Garden Harlow Carr Flower Show Confirmed going ahead RHS Garden Harlow Carr Flower Show @ RHS Garden Harlow Carr
Harlow Carr's flower show is a three day event hosting specialist nurseries and trade stands with stunning displays, food stalls and family entertainment.
RHS Garden Harlow Carr, Crag Lane, Harrogate, North Yorkshire, HG3 1QB

RHS Garden Harlow Carr Flower Show RHS Garden Harlow Carr Flower Show

02/07/2021 - 04/07/2021

Devon County Show Confirmed going ahead A traditional country show, celebrating all things Devon.
Devon County Show, Westpoint, Clyst St Mary, Exeter, Devon, EX5 1DJ

Devon County Show Devon County Show

06/07/2021 - 11/07/2021

Hampton Court Palace: RHS Hampton Court Palace Garden Festival Confirmed going ahead RHS Hampton Court Palace Garden Festival @ Hampton Court Palace
Hampton Court Palace Flower Show is the largest annual flower show in the World. Hampton Court has 34 acres of parkland so the flower show is able to spread out more than Chelsea. Unlike Chelsea where you can only purchase plants on the last day sell-off, at Hampton Court you can purchase plants and garden sundries on all days. In the last couple of hours in the afternoon of the last show day, a lot of the plants that have been in the display gardens are sold off at a reduced prices, so you may get a bargin. However, this also means that in late afternoon it's a bit frenetic and difficult to see the displays at their finest. 30 minutes by train from London Waterloo.
London,

RHS Hampton Court Palace Garden Festival RHS Hampton Court Palace Garden Festival

16/07/2021 - 18/07/2021

Norfolk Showground: The Norfolk Garden Show Confirmed going ahead The Norfolk Garden Show @ Norfolk Showground
A new for 2021 three day gardening event at the Norfolk Showground. The event will showcase the very best plantsmen, gardening exhibitors, traditional gardens and unique garden furniture, home products with a food & drink court and crafts & gifts pavilion.
Norfolk Showground, Dereham Road, Norwich, NR5 0TT

The Norfolk Garden Show The Norfolk Garden Show

21/07/2021 - 25/07/2021

Tatton Park: RHS Flower Show Tatton Park Confirmed going ahead RHS Flower Show Tatton Park @ Tatton Park

Knutsford, Cheshire,

RHS Flower Show Tatton Park RHS Flower Show Tatton Park

24/07/2021 - 24/07/2021

Knightshayes Court: Mid Devon Show Confirmed going ahead Mid Devon Show @ Knightshayes Court
A county show with a mix of horticulture, agriculture, entertainment, shopping, music and farm life.
Devon,

Mid Devon Show Mid Devon Show

31/07/2021 - 01/08/2021

Newbury Garden Show Rescheduled date Information from show organisers: Postponed until a later date
Newbury Showground, Priors Court, Hermitage, Thatcham, RG18 9QZ

Newbury Garden Show Newbury Garden Show

04/08/2021 - 04/08/2021

North Devon Show Confirmed going ahead A traditional one day agricultural show celebrating rural Devon life.
Umberleigh Barton Farm, Umberleigh, Devon, EX37 9DX

North Devon Show North Devon Show

04/08/2021 - 08/08/2021

RHS Garden Hyde Hall: RHS Garden Hyde Hall Flower Show  RHS Garden Hyde Hall Flower Show @ RHS Garden Hyde Hall
A five day flower show set in the grounds of RHS Garden Hyde Hall.
Creephedge Lane, Rettendon Common, Chelmsford, Essex, CM3 8ET

RHS Garden Hyde Hall Flower Show RHS Garden Hyde Hall Flower Show

06/08/2021 - 07/08/2021

Jekka's Herbetum: Jekka's Herbetum Open Day Confirmed going ahead Jekka's Herbetum Open Day @ Jekka's Herbetum

Jekka's, Shellards Lane, Alveston, Gloucestershire,

Jekka's Herbetum Open Day Jekka's Herbetum Open Day

06/08/2021 - 07/08/2021

Taunton Flower Show  Organisers of Taunton Flower Show have decided not to hold a show in 2020 due to the uncertainties caused by the corona virus situation. The show's directors announced that they have decided to focus their efforts on making next year's event the biggest celebratory garden party the town has seen for years.
Vivary Park, Taunton, Somerset

Taunton Flower Show Taunton Flower Show

13/08/2021 - 15/08/2021

RHS Garden Rosemoor: RHS Rosemoor Flower Show  RHS Rosemoor Flower Show @ RHS Garden Rosemoor
2017 was RHS Rosemoor's first ever flower show, now in it's forth year it's back bigger and better with large floral displays, trade stands, garden advice and live music.
Nr. Great Torrington, Devon,

RHS Rosemoor Flower Show RHS Rosemoor Flower Show

15/08/2021 - 15/08/2021

Mid-Somerset Show/Shepton Show Confirmed going ahead The one day agricultural show is a great family day out. Craft stalls, livestock displays, dog shows and cheese tasting.
Shepton Mallet Showground, Cannard's Grave Road, Somerset

Mid-Somerset Show/Shepton Show Mid-Somerset Show/Shepton Show

21/08/2021 - 22/08/2021

The Isle of Wight Garlic Festival Confirmed going ahead Over 250 trade stalls showing and selling garlic and other local produce.
Fighting Cocks Crossroads, Bathingbourne Lane, Sandown, Isle of Wight, PO36 0LU

The Isle of Wight Garlic Festival The Isle of Wight Garlic Festival

26/08/2021 - 29/08/2021

The NEC: BBC Gardeners' World Live Rescheduled date BBC Gardeners' World Live @ The NEC
Information from show organisers: Cancelled due to the Coronavirus (COVID-19)
North Avenue, Marston Green, Birmingham, West Midlands, B40 1NT

BBC Gardeners' World Live BBC Gardeners' World Live

27/08/2021 - 29/08/2021

The Royal Bath and West Agricultural Show Rescheduled date A festival of agriculture entertainment and food & drink. The Royal Bath and West show is one of the oldest agricultural shows in England. Taking place over 4 days.
The Bath and West Showground, Shepton Mallet, Somerset

The Royal Bath and West Agricultural Show The Royal Bath and West Agricultural Show

29/08/2021 - 30/08/2021

Edenbridge & Oxted Agricultural Show  A traditional county show.
Lingfield, Surrey, RH7 6LL

Edenbridge & Oxted Agricultural Show Edenbridge & Oxted Agricultural Show

03/09/2021 - 05/09/2021

Chatsworth Counrty Fair  Held in the Chatsworth Park the Chatsworth Country Fair is one of the most spectacular annual outdoor events.
Chatsworth House, Chatsworth, Derbyshire, DE45 1PP

Chatsworth Counrty Fair Chatsworth Counrty Fair

04/09/2021 - 04/09/2021

Moreton-in-March Show Confirmed going ahead One of the largest one day agricultural shows in the country.
Moreton-in-Marsh Showground, Batsford Road, Moreton-in-Marsh, Gloucestershire GL56 0AB, Gloucestershire

Moreton-in-March Show Moreton-in-March Show

07/09/2021 - 12/09/2021

RHS Garden Wisley: RHS Garden Wisley Flower Show  RHS Garden Wisley Flower Show @ RHS Garden Wisley
Six day flower show featuring nurseries and garden trade suppliers. Including the National Dahlia Society Show, NAFAS floral displays and the Surrey Sculpture Society Trail.
Woking, Surrey, GU23 6QB

RHS Garden Wisley Flower Show RHS Garden Wisley Flower Show

21/09/2021 - 26/09/2021

RHS Chelsea Flower Show Rescheduled date Information from show organisers: Due to the Coronavirus (COVID-19) pandemic and current Government advice all RHS shows have been cancelled until at least 30th June, 2020. For further details please see the RHS website (https://www.rhs.org.uk/about-the-rhs/policies/coronavirus-state
Royal Hospital Chelsea, Royal Hospital Road, London, SW3 4SR

RHS Chelsea Flower Show RHS Chelsea Flower Show

01/05/2022 - 02/05/2022

Robin Hood Country Show  Postponed due to Brentwood Centre being used as a vaccination centre.
Brentwood Centre, Doddinghurst Road, Brentwood, Essex, CM15 9NN

Robin Hood Country Show Robin Hood Country Show

15/05/2022 - 15/05/2022

Alresford Watercress Festival Rescheduled date The May 2020 festival was initially moved to September, unfortunately this has now been cancelled. The 2021 festival has now been moved to a virtual watercress festival. A celebration to mark the start of the watercress season.
Alresford, Hampshire, Hampshire

Alresford Watercress Festival Alresford Watercress Festival

All event details have been entered as accurately as possible, but please check with the event organisers before travelling to avoid disappointment.

Welcome to the UKGardening Internet site.

The UKGardening web site has been running since 1998. The idea behind the site has always been to provide what we think will be interesting and useful information for the novice gardener.

Jobs to do in the garden this week.

  • Apply a weed and feed to established lawns. Water in with a hose after a few days if it hasn't rained.
  • Open cloches ends to allow pollinating insects access to flowering plants. Remove cloches in late spring.
  • Plant up new ponds with aquatics, including oxygenators.
  • As daffodils fade, remove the flower heads. Don't cut back the leaves - leave them to die back naturally. However if you want to tidy them up, wait until the leaves have yellowed before removing.
  • Feed established roses, fortnightly, with a rose fertilizer, dead-head regularly and check for aphids and black spot.
  • Plant maincrop potatoes in prepared ground or potato growbags.
  • Lift and divide primulas and polyanthus after they have finished flowering. See our YouTube video showing how to do this.
  • Now is the best time to plant lavender. Widely grown for its scent and foliage, lavender is ideal for borders or a low hedge. Available in shades of purple, blue, white and pink it is a magnet for bees and butterflies
  • April is the peak flowering time for orchids.
  • Lift, divide and replant chives.
  • April is the best time to plant an evergreen, such as laurel or box.
  • Remove the dead heads of spring flowering bulbs, such as tulips and daffodils, before they have a chance to produce seed. This will encourage the plant to store energy in the bulb rather than wasting it on seed production.
  • Postion plant supports where they will be needed in late summer. Doing this now reduces the risk of damaging the roots later in the season.
  • If your lawn is more moss than grass, then treat with a lawn moss killer. Bare in mind that the moss will turn black within a couple of days, so don't be too alarmed. A couple of weeks after application, if you are left with bare patches in your lawn, mix equal quantities of grass seed and seived compost and scatter over the patches, cover areas with fine netting or twigs gently pushed into the soil, to protect from birds and animals. Combination lawn feed and moss killer is available, but feeding your lawn when it's not necessary will encourage it to grow quicker and therefore need to be cut more regularly.
  • Sow vegetable seeds (courgette, marrow, runner and French beans) in the vegetable patch and salad seeds (lettuce, spring onion and radish) little and often to provide a staggered harvest through the summer.
  • Prune lavatera hard, down to healthy young growth.
  • Don't be tempted to buy your summer bedding yet, unless you have a greenhouse, conservatory or cold frame that you can store them in. A late April / early May frost is not uncommon in the UK.
  • Cut vigorous climbers such as honeysuckle and ivy back hard.
  • As summer-flowering herbaceous perennials start to come back to life, lift and divide overgrown plants.
  • Scatter growmore granules under fruit trees and bushes, especially apple, pear and plum trees. If it doesn't rain for a couple of days, water the granules in with a hose or watering can. Growmore is a slow release, general fertiliser, it includes the three main plant nutrients (nitrogen, phosphates and potassium).
  • Begin regular cutting of your lawn. If the grass is long increase the height adjustment of the mower to the highest setting. Once this first cut has been done, lower the blades/deck and go back over the lawn.
  • Your pond may have started to turn green and cloudy. This is due to a rapid increase in algae, which flourish in the warmer spring temperatures. Once the pond plants start to grow again, especially the oxygenating plants, these will use up the nutrients and create shade, reducing the amount of algae. To speed up the clearing of the water, drop a small string bag/pair of old tights stuffed with barley straw, into the pond. Weigh the straw down, so that it floats just below the surface of the water.

    As the straw breaks down, it produces hydrogen peroxide, which reduces and inhibits the growth of algae and blanket weed. If the algae is particularly bad, barley straw extract can be bought in liquid form and added to the pond water (follow the instructions on the bottle, but as a guide before purchasing,125ml treats approximately 4,500 litres/1,000 gallons, but multiple, fortnightly treatments through the year may be necessary). If you have a fountain or waterfall, try to position the barley straw underneath this. Remove and replace the barley with new straw after about six months, before it completely rots down, polluting the water.

    The small, pre-filled barley straw bags to add to your pond, cost about £2 each, but you can buy a 17 litre pack, which will last a few years for about £10 from your local pet shop or Amazon here: Supreme Petfoods Tiny Friends Farm Russell & Gerty Barley Straw, 17 Litres

  • Tidy up any remaining leaves and general garden rubbish. It's home to slugs, snails, vine weevil and woodlice and can introduce disease and infection into your garden.
  • Weed and spread compost from the compost bin over the borders and vegetable patch. This adds valuable nutrients to the soil and acts as a mulch, to retain moisture and reduce weed growth. Ensure that the soil is moist before adding mulch.
  • Transplant any self-set aquilegia, lupins and hollyhocks to new locations.
  • Plant onion sets (bulbs). Run a string line across the bed and plant the bulbs, 5-10cm (2-4in) apart, up to their necks so just the tips are showing. Space the rows 25-30cm (10-15in). Firm the soil around them and water well, cover with a cloche for added protection. Keep an eye on them until they get established as some birds like to pull the sets out.
  • As it's starting to warm up, it's a good time to lay a new lawn, although the best time is in Autumn or late winter, as it's damper and cooler, allowing the turf to bed in without you having to worry too much about regular watering. See here: laying a new lawn for further information.
  • When you see the new shoots forming on sedum, cut down the old, dead flower heads.
  • Plant lily and gladioli bulbs in 4in (10cm) deep holes. Cover with soil or compost and gently firm down the soil to ensure that there are no air pockets as this may cause the bulbs to rot.
  • Put holly branches on the ground to stop mice and squirrels digging up newly planted peas, broad beans and bulbs.
  • Remove algae and moss from patios and paths with a pressure washer or proprietary patio and path cleaner (traditionally a tar oil winter wash could have been used, but these are no longer available, particualrly to the amateur gardener, as they were found to be carcinogenic).
  • Refirm the roots of any shrubs that may have been lifted by frost.
  • Keep an eye on the weather forecast. Cover shrubs that are likely to be damaged by frost with garden fleece, sacking or an old light blanket.