Peter’s Gardening Tips for April

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This is turning into one of the most explosive, phenomenal springs here in southern England for decades, but at a price – virtually no rain!

The colour is extraordinary primroses, violets, daffodils, narcissus, aubretia, peach, plum, cherry blossom, magnolias, even bluebells!

Magnolia campbellii

Magnolia campbellii

The first Swallows have arrived, and I have seen Chiffchaff, Willow Warbler, Blackcap, and a Cuckoo too! Plus butterflies – Speckled Wood, Brimstone, Orange Tip, Small Tortoiseshell.

This is fabulous to see but a head ache as well. Pond and river levels are dropping down here in April! Daffodils are lasting five minutes. Anything recently planted or in pots needs watering. Please send us some rain from up north! We’re never satisfied us gardeners!

The weather contrast across the country is huge this spring. Garden with care – hard frosts are forecast end of week and into next.

So much to do in the garden now, it’s a challenge to know where to begin … here are my top tips for this month:

Lawns

Woman wearing spiked lawn revitalizing aerating shoes, gardening

Lawn Aerating Sandals

Perk up your lawn with a feed, weed and mosskiller.  Aerating the lawn is a must after winter.  This can be done by standing on a fork in a lawn and gently pulling back on the fork – not breaking the handle!  The ground will lift a bit and crack the surface so improving drainage and critically getting more air to the roots of the grass. Alternatively, you could invest in a pair of Lawn Aerating Sandals. This will help the grass to grow and reduce moss and algae.  If your lawn is large forget doing the above by hand or foot, and hire a Lawn Aerating machine, either with solid tines or a slitting machine.  After scarifying or aerating, any bare patches can be over-seeded with new grass seed lightly covered with fresh soil, and keep watered.  If the whole lawn is looking thin, then over-seed the whole area,  one handful of seed to the square yard/metre.  A lawn spreader can be hired for using on larger areas.

Mowing

In the south raise the cutting deck- long grass copes better with hot, dry weather. Further north you’ll wonder what the fuss is about! Carry on as usual…

Vegetables

Depending where you live in the UK many seeds can be sown now.

Only sow if you can protect your seedlings from extremes of weather and the ground temperature is above 5°c. Cloches, cold-frames, Environet, fleece will protect delicate seedlings and keep pigeons/ birds/ rabbits off.

Clear weeds, tickle over the surface with a fork, rake out lumps, break up with the rake head laid flat with the ground and tamp up and down crushing the lumps.  Then rake to a fine crumbly texture or tilth.  A wooden scaffold board is now great to work off.  Create a straight edge where you want the row of the seeds to grow.  Stand on the board and use a trowel or the back of the rake and draw this along the side of the board edge creating a shallow furrow in the soil.  Now you can seed sow, there is so much choice from carrots, lettuce, radish, beetroot, and spinach.  Sow peas, broad beans, white cabbages, and broccoli.  Plant out onion sets and shallots.  Cover where you can with Enviromesh to keep bugs off.

PLANTING POTATOES

Planting out potatoes

In the greenhouse, plant courgette, marrow, squash, tomato, cucumber, and pumpkin seeds.  Always use fresh seed compost and warm it up, avoid using cold, wet compost!   If you have a heated propagator you will achieve better and quicker germination, a great investment. Plant out potatoes, remember to plant at least 6” deep, adding potato fertiliser or growmore.  Potatoes are hungry plants.  Once the leaves come through be prepared to cover with horticultural fleece for frost protection. Others  for seed sowing include cauliflowers, brussel sprouts, cabbages, purple sprouting, broccoli – these all need a lot of room to grow, read the packets!  Celery, ridge cucumber, parsnip, climbing beans, runner beans, French beans leave until the end of the month and sow indoors.

Feeding and Watering

New growth on all plants shows the plants are growing so this is the time to feed any trees, shrubs, herbaceous, climbers, fruit bushes etc.

Liquid feeding works quickest and where you have a deficiency use a foliar feed like Vitax liquid seaweed plus Iron or Q4 Flower and Fruit.

For established plants use Gro-Sure slow release plant food from Westland or 6X for a natural product. There are plenty of fertilisers to choose from.

Flower Garden – Sweet peas can be planted out into the ground or a large planter.  Put in bamboo canes or string supports to support and climb up.  Use a good quality compost for containers with John Innes No 2 and combine with multi-purpose compost 50/50 split.  Pinch out growing tip if plants are too tall back to 4-5 leaves.

Spencer type Sweet Pea

Sweet Peas

Bulbs – Take off faded flowers and the seed pod on the stalk especially daffodils.  If you want Snowdrops and smaller bulbs to spread leave them on.  You can dig up large clumps of Snowdrops and split them up into smaller groups.  Re-plant where you want to move them to straight away.

Dahlia Tubers – Time to check and pot up into fresh compost.  Any soft or rotten tubers need to be cut off and thrown away,  water and place in greenhouse or a light windowsill.

Begonia Tubers – These can be started up again.  A tip I was given years ago is to place the  corm on fresh damp compost upside down, convex upwards!  Leave like this for 2 weeks , and when you lift off the corm and look at the concave side there should be several buds – 3 or more.  Now you can plant them the right way up as usual, do let me know how you get on?

Garden Lillies – If you want scent go for the oriental and longiflorum types.  Great for summer colour, and plant in containers a handful of gravel under each bulb.  John Innes/multi-purpose mix again, placing it 6” down in the plot or plant in the ground again with gravel or coarse grit under the bulb. Water and feed plants in containers, and any newly planted plants.  March has been particularly dry and it looks like April will be too.

Plant supports and Training

Clematis, roses, climbing plants of all sorts need support, training or tying in. Don’t be frightened by pinching out the growing tip of clematis to make them more bushy, if it means sacrificing the odd flower bud you will be paid back handsomely!

Use Pea sticks for herbaceous plants, they look the natural business! Just use any supports now before the triffids take over!

Peonies are a must. One of the quintessential Cottage Garden Plants. Feed and water now for the best flowers. The Queen of Peonies is Claire Austin. If you love them as much as I do you’ll love her Book of Perennials. Website: claireaustin-hardyplants.co.uk

13th  – 19th April is  National Gardening Week which was launched four years ago by the RHS and since then has grown into the country’s biggest celebration of gardening.

Or if you are near:

I will be giving a talk on Gardening and Wildlife in a marquee at RHS Wisley this Sunday 19th of April at 2pm to round off their Gardening and Wildlife Weekend. The talk is Free. Non members need to pay admittance to the 170+ acres of stunning gardens. Only 100 seats available!

PLEASE FEEL FREE TO LEAVE ANY GARDENERS QUESTIONS UNDERNEATH THIS FEATURE AND I WILL DO MY BEST TO ANSWER YOU PERSONALLY … ALSO IF YOU WOULD LIKE A GARDENING TOPIC COVERED JUST LET ME KNOW

Happy Gardening everybody!

 

PeterMillsGardening.com

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Peter Mills

I love everything to do with natural history, wildlife, biodiversity and of course horticulture - basically the big outdoors. I grew up with very good teachers namely my parents and my French grandfather who was a superb grower of vegetables. At Hadlow College I studied a three year OND in Horticulture. I had a market stall selling plants. Went onto wholesaling house plants to florists and garden centres across southern England. In 1986 I joined Clandon Park Garden Centre as manager. Whilst there I started my career as a gardening radio presenter with the BBC Southern Counties Radio. This continued for 15 years, building up valuable contacts with the RHS Wisley, live broadcasts from Chelsea & Hampton Court Flower shows, South of England & Surrey County shows etc. Since 1998 I have been self-employed, working as a Head Gardener and in private gardens . Through the RHS Advisory Department at Wisley I advise on horticultural problems in members gardens, including pest & disease problems, lawn-care advice, pruning of wisterias, fruit trees, roses, wildlife gardening, growing fruit & vegetables, creating wildflower meadows, identifying plants and control of pernicious weeds. Autumn 2016 finds me at the Autumn Flower Show 6-8 of September at RHS Wisley and Taste of Autumn Sunday 23rd of October. Sunday 11th of September I am cycling from London to Brighton for Perennial ( Gardeners Benevolent Fund) who helped me when I broke my leg badly in 2014. Had the plate removed in February this year. My Just Giving page is http://www.justgiving.com/Peter-Mills14 Perennial is a Fabulous Charity who help anyone working in horticulture. I didn't think I would need their help at the age of 52! They were brilliant and helped us as a family. It's my turn to repay their help and others too! John Ambrose and I have raised over £ 2000.00 thank you all. I am an extremely lucky guy who loves what I do and the trade called Horticulture!

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whirley
19th Apr 2015
0
Thanks for voting!
We have a lawn that has got brown dead patches on it. Over a period of 4 years ( this how long we've had this issue !) we've laid fresh turf, it all died, we've seeded, that died, we've raised the level of soil re seeded again that seemed to help now it's had its first cut back have come the brown patches and they have more or less taken over the lawn!! It's dying yet again! Our house was brand new on an estate in the countryside, I wonder if this has any bearing on the problem, could you please give us some advice, many thanks Shirley
ruthscothern
18th Apr 2015
0
Thanks for voting!
Hi Peter, what's the best tonic for Sarccaccoa...
'Christmas Box' some of the leaves are yellowing? I have neutral loamy soil thanks RSx
Peter Mills
19th Apr 2015
0
Thanks for voting!
Hi Ruth,
Old leaves from last year will fade and drop off. This happens with all evergreens. If the new growth is yellow then you need to feed. Liquid ericaeous with seaweed will sort it out or slow release fertiliser. Regards Peter.
cuthbert
18th Apr 2015
1
Thanks for voting!
Thanks Peter I think I might give it a go! Am new to silversurfers - what a great service you have on offer.
janetann
18th Apr 2015
1
Thanks for voting!
You must be a good 4 weeks ahead of where I live in Northumberland - I will reread your blog this time next month!!

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