OPEN 9am-5pm (Feb' 1st - Oct' 31st) INCLUDING BANK HOLIDAYS

Garden Jobs This Month near Winchmore Hill

Garden Jobs This Month - JUNE.


  1. Lift and store tulip bulbs after flowering
  2. Give wisteria its summer prune, cutting all the long sideshoots back to 20cm, to promote flowering next spring
  3. Plant up a new tropical display with tender exotics, including bananas, ricinus, coleus, cannas and amaranthus
  4. Support tall-growing perennials, including hollyhocks and delphiniums, with a sturdy cane
  5. Continue planting summer bedding in pots and borders, and water regularly to help plants establish quickly
  6. Cut back spring-flowering perennials, such as pulmonaria, to encourage a fresh flush of foliage
  7. Tie in new stems of climbing and rambling roses horizontally to supports, to encourage more flowers
  8. Take cuttings from pinks and carnations, selecting non-flowering shoots, which should root readily
  9. Pinch out the tips of fuchsias and bedding plants to encourage bushier growth
  10. Give container displays and hanging baskets a liquid feed every few weeks to encourage flowering
  11. Apply colourant solution to hydrangeas to ensure the flowers are a deep, rich blue
  12. Fill any gaps in borders with pots of tall bulbs, such as fragrant lilies, to add instant colour
  13. Prune late-spring or early-summer shrubs after flowering, such as weigela and philadelphus, thinning out the older stems
  14. Add marginal plants, such as arum lilies and marsh marigolds, around the edges of your pond



  1. Plant out sweetcorn after hardening off, arranging plants in blocks to aid pollination
  2. Cover developing and ripening fruits with netting or fleece to protect them from birds
  3. Enjoy the last harvests of asparagus this month, then leave the ferny top-growth to grow up over the summer
  4. Spread mulch around thirsty crops such as beans and courgettes to hold in moisture around their roots
  5. Check for woolly aphids on fruit trees, and treat infestations with soap-based spray
  6. Water vegetables and fruit in containers regularly, especially during dry sunny weather
  7. Go on regular snail hunts, especially on damp evenings, to reduce populations
  8. Tie in new shoots of blackberries, raspberries, loganberries and other cane fruits
  9. Apply tomato feed regularly to fruiting veg crops, including tomatoes, courgettes, pumpkins and chillies
  10. Plant up an edible hanging basket with trailing tomatoes and herbs, and keep it well watered all summer
  11. Rejuvenate chives by cutting the clump down to the base, for a fresh crop of new leaves in just a few weeks
  12. Water beans and peas as they start to flower
  13. Pull out any raspberry canes sprouting up out of their dedicated area
  14. Take softwood cuttings of herbs such as marjoram and sage, plant in gritty compost and place on a sunny windowsill



  1. Sow herbs in pots to grow on your kitchen windowsill, such as coriander, parsley and basil
  2. Plant out tender vegetables raised indoors, including beans, tomatoes, pumpkins, courgettes and sweetcorn
  3. Put houseplants outside for the summer in a warm, sheltered spot to enjoy the fresh air and extra light
  4. Pinch out the sideshoots of cordon tomatoes regularly
  5. Harden off hanging baskets and pots of summer bedding that have been growing in the greenhouse
  6. Sow biennials, including foxgloves, honesty, wallflowers and sweet rocket, in seed trays
  7. Water plants daily in warm weather, ideally in the evening or early morning, and avoid splashing the foliage
  8. Introduce biological controls to the greenhouse if you have pests such as whitefly or red spider mite
  9. Take softwood cuttings from hydrangeas and pelargoniums and stand the pots on a bright windowsill or in a greenhouse
  10. Take leaf cuttings from houseplants, including African violets, begonias and Cape primroses
  11. Increase greenhouse shading and ventilation to keep temperatures down on hot days
  12. Feed flowering and fruiting plants weekly with tomato feed
  13. Water greenhouse tomatoes regularly to prevent split fruits and blossom end rot
  14. Treat pots with vine weevil control if this pest has been a problem in the past, as larvae become active this month
  15. Start watering houseplants more frequently as temperatures and light levels increase



  1. Empty, mix and refill compost bins to speed up decomposition
  2. Spray roses showing signs of disease, such as blackspot, powdery mildew or rust
  3. Continue watering any new plantings until they’re well established
  4. Water newly laid turf several times a week, for at least the first month
  5. Trim fast-growing hedges, such as privet, every six weeks over the summer
  6. Put stakes in to support tall, large-flowered dahlias and tie in stems as they grow
  7. Prune spring-flowering shrubs, such as kerria, choisya, chaenomeles and ribes, after flowering
  8. Check hedges and shrubs for nesting birds before you start any trimming or pruning, so you don’t disturb them
  9. Remove any all-green shoots on variegated shrubs, cutting right back to their base
  10. Treat patio pots with vine weevil control if this pest has been a problem in the past, as larvae become active this month
  11. Dig out perennial weeds, such as couch grass and bindweed, as soon as you spot them
  12. Feed lawns with a liquid or granular lawn fertiliser
  13. Prune evergreen Clematis armandii if it has grown too large

All above information from http://www.gardenersworld.com/what-to-do-now/ & are in no way based on our current stock.

This Weeks Social Media Update.

WEEK 26: Almost done.

Good morning gardeners. We are almost done with bedding plants & patio plants for the summer season. We have a few final reductions to tell you about this morning. Box grown bedding plants are now ONLY £2 per box if you buy 4 or more boxes. All 9cm pot patio plants are now ONLY 50p each. All 13cm pot patio plants are now ONLY £1.99 each including the brand new experimental Busy Lizzie that we have been trial growing. All 9cm pot vegetable plants are now ONLY 50p each & grafted vegetables in 2ltr pots are £2.99 each, buy one, get one FREE. We are also clearing some scruffy lavender in 2ltr pots for ONLY £1 each. On the nursery, shrub potting continues. We have nearly completed the first round of 3ltr potting. Next will be next years climbing plants then on to shrubs in larger 5ltr + containers. The next batch of young mini cyclamen for autumn/winter, are also expected this week. Our biggest enemies at this time of year are extreme weather & outdoor space. 15 acres sounds like a lot, but it is filling back up fast. In the sales areas focus now shifts back to #garden staples like shrubs & perennials. We will keep the range varieties as full as possible through the coming months. Rest assured, we will always have the biggest selection of plants available to buy in any one retail establishment that you are likely to find locally. Highlighted in the cover photo is trachelospermum, commonly known as “Star” or evergreen Jasmin. It isn’t actually a Jasmin but right now, it is loaded with Jasmin-like, strongly Jasmin scented white flowers. A medium speed climbing plant ideal for a sunny spot in a large container or the ground. We have a couple of sizes, approx’ 2m £25.99 & approx 1m £15.99. That is all for this weeks main update. Happy Gardening Everyone. 27/06/22

Shopping At Clockhouse

Garden retail like it used to be.

Here at Clockhouse Nursery we pride ourselves in providing reasonably priced plants & the products you need to grow them effectively.

That is all.

So, no need to wade through the tide of unnecessary paraphernalia that you will find in most modern garden centres.

No need to worry about parking either as we have over 150 spaces available.

Please Note !

We are a CASHLESS establishment. Accepted payment metohds: credit / debit cards (contctless or otherwise), Gift vouchers & voucher cards, Apple or Android Pay.

Site Plan

Finding your way around our site

Please note that, although this map is still relevant, we are now orerating under some covid19 distancing procedures which means that there are partial one-way systems in place. This restricts easy access between some areas.

Over recent years we have put a lot of effort into making our nursery as easilly accessible as possible. The entire sales area & car park have hard sufaces made from either concrete or tarmac. Outside pathways are wide and our sales beds are sturdy brickwork allowing customers to sit & take a rest if one of our benches is too far away or already occupied.

We feel that you will be able to navigate our nursery with ease, whether you are here for a leisurely browse or a calculated ‘in & out’ quick shop. Free copies of the nursery map (shown to the right) are available from our customer services desk, they also have a shop layout map on the back of them. Don’t forget, a member of staff will be more than happy to point you in the right direction.

We hope that you enjoy your visit.

View site map

View shop map


We offer discounts on purchases which are open to everyone.

Discounts do not apply to promotion items, special offer items, gift vouchers, bedding plants, delivery costs or compost.

You Spend Payment
£350-£649 5% discount
£650-£949 7% discount
£950+ 10% discount
Gift Vouchers

The perfect gift for green fingered family and friends

If you have absolutely no idea what to buy for as a gardening gift but you do know that the recipient is a Clockhouse Nursery customer, we can offer you a Clockhouse Nursery specific gift card. Available in four designs & similar to many highstreet gift cards in size. Simply request one at the tills, choose your design & it can then be pre loaded with an amount of your choice. Once loaded the amount on the card can be used as part payment or in its entirety. Please don’t forget to mention to your family & friends that they can become part of the Clockhouse “Garden Gang” by signing up for our loyalty card too!

We also stock & accept “National Garden Gift Vouchers” which are accepted at over 2,000 leading UK garden centres, shops and nurseries. With National Garden Vouchers you have the choice of over 90,000 garden products from saplings to pagodas all gardeners will find something they’d like. A National Garden Gift Voucher is great for any special occasion, and whether the lucky recipient is an experienced gardener, or just starting out, they’ll be able to buy everything they need with the thoughtful gift. (Please note that we no longer sell the paper form of these vouchers however, we do continue to accept them as long as they are in date & validated by the retailer).

Plant guarantee & refund policy

We are committed to ensuring that we sell excellent quality plants at what we deem to be reasonable prices. Many of our plants are grown here on site which enables us to maintain quality control to a very high level. Other plants are supplied by trusted companies, many of which have been in business for decades. We are always available to advise customers on the correct care for plants pre-purchase.

Because of this confidence in our product we do not offer a plant guarantee. However should you experience a problem with your plant within six months of purchase we will consider either replacement, credit note or advise you on a course of action to take to resolve the issue. Should the plant need to be returned it must be accompanied with valid proof of purchase (till receipt). We do NOT accept responsibility for plants damaged by weather conditions ( i.e. frost or extreme heat), or poor aftercare. A plant is a perishable good reliant on correct level of aftercare for survival. As such, after six months we relinquish responsibility for its nurturing & hand that duty 100% to the purchaser.

Refunds and exchanges

Should you change your mind about a ‘non plant’ product after purchase you may return it to us proving that the packaging has not been opened, the product has not been used, the product is still in saleable condition, with a valid receipt, within 28 days of purchase. Also, should the product be found to be faulty, it should be returned to us inside of 28 days with valid proof of purchase. Return or refund outside of 28 days may also be considered if the product meets the previous requirements stated. Plant returns should be within 5 working days. The plant will need to be in exactly the same condition as it was at the time of purchase and accompanied with a valid receipt. You will be offered credit note, cost equivalent exchange, or refund to the method of payment.This will be at the discretion of management.

If a product had been delivered by us its return is soley the responsibility of the purchaser. We will not offer a pick up service unless extreme circustances dictate that there is no other option. In such a case the purchaser may be liable for the cost of pick up. This will be at the discretion of management.

All refunds will be credited in the same fashion as initially received, i.e. if you paid by card, the refund will need to be issued to the same card.

We do not offer refunds or guarantees on any sale or stock clearance items.

Please keep your receipt as proof of purchase.

This does not affect your statutory rights.

Visit Us

In the Spring and Summer we’re open 9am - 5pm, 7 Days a week, including Bank Holidays!

We are a CASHLESS retailer. Accepted payment metohds: credit / debit cards (contctless or otherwise), Gift vouchers & voucher cards, Apple or Android Pay.

Here is a calender showing roughly what times of year different plants are available.

Our Autumn and Winter times are 9am - 4pm, 7 days a week.
(Nov 1st - Jan 31st)**

View Full Size Map

Established in 1928

Not many Garden Centres can boast over ninety years of history, and yes, we have seen many changes over that period. Indeed change will continue as we strive always to supply the best in plants and facilities. One thing, however, will never change:

The core philosophy first introduced by Archibald John Mills way back in 1928 remains - the philosophy that built the company’s reputation, sustains it now, and will guide it in the future:

The best way to keep gardeners happy is to offer them plants of the highest quality, sold at reasonable prices.

Read more

Horticultural Trades Association.

We are proud members of the HTA, the Horticultural Trades Association, which is ‘the’ UK’s garden trades association. The HTA has, for over 100 years, promoted the interests of its members and the industry at large.

Being a member offers us various benefits and for you, the customer, the membership should provide you with some reassurance that we are an establishment of quality that takes its responsibilities to its customers seriously.

It also enables us to offer you access to HTA backed schemes such as the national gift vouchers which are redeemable at other HTA partner businesses across the country.

Perennial GRBS

We are also proud to say that our chosen charity is Perennial GRBS (Gardeners Royal Benevolent Society). We are a Perennial Partner which means that we make an annual contribution to this worthy cause whose sole aim is to help people in many branches of horticulture including arboriculture, farming, professional gardening etc during their hours of need. Occasionally we will attach a donate button to our Facebook posts which will enable you to donate directly to this charity should you feel so inclined. Our industry is enternally thankful to those who are able to donate even the smallest amount. To find out more about their work please feel free to visit their website https://perennial.org.uk/

Dog Friendly.

We are a dog friendly establishment. We are listed with www.dogfriendly.co.uk who’s aim is to provide a directory of dog welcoming businesses accross the UK. All that we ask of you as a dog owner is that your four legged friend is kept on a lead at all times whilst wandering around the Nursery and that you clean up after them should the enivitable ‘accident’ occur.

You may access all areas of the Nursery with your pet but we ask that on busy days, you avoid queing at the tills with them especially if they are not very good around strangers. This area can feel a little confined & we feel that for anxious dogs it is best avoided. Most of the time however, you are welcome to queue & pooch may even get a dog treat if they are allowed.

One thing that we frown upon severly is the leaving of dogs in cars whilst owners are shopping. There is no excuse for this here & we have been known to release pets from boiling hot vehicles by all means at our disposal.

Get in Touch

Please feel free to send us a message or ask a question directly via this e-mail form.