Sustainable Gardening

Sustainable Gardening

At Capital Gardens we stock a wide range of products for sustainable gardening. We aim to stock the largest selection of Organic and Sustainable gardening products in or around London, and our selection is growing all the time.

At Capital Gardens we are environmentalists, but we are also pragmatists. We believe in striving for using organic products in our gardens wherever possible, but understand that living as we do in an urban environment, balances of nature can get skewed. So to keep our plants safe and beautiful, we may need to step in from time to time with man-made products.  However, the good news is there are many products available that are naturally derived, chemical-free or biodegradable, that have a reduced impact on the environment compared to others.  We have collected these less harmful products together to form our sustainable gardening range.

As part of our commitment to sustainability, we also produce regular blog posts on organic and sustainable topics. Our aim is to provide helpful, relevant advice and inspiration for implementing organic and sustainable practices in your garden. Whether beginner or expert, we hope that you will find it a useful ongoing resource. Come and visit one of our stores to find the full range of sustainable and organic gardening products we offer.

Latest blogs

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Featured Products

Use arrows to see full selection

  • GRAZERS APHID CONCENTRATE 350ml

    GRAZERS APHID CONCENTRATE 350ml

    Grazers new and effective G3 formula that protects against cabbage white butterflies, caterpillars and aphids. Is completely harmless to people, pets and the planet making it great addition if you are gardening with the environment in mind! This product does not kill the insects, it simply deters them and they go elsewhere in search of food or shelter. 350ml of concentrate that, when diluted, can make up to 7L of a ready to use spray capable of treating up to 300msq

     

    • New unique formula against damage from cabbage white butterfly, caterpillar and aphid
    • Makes 7 litres of spray ready to use
    • Harmless to people, pets & the planet
    • Safe to use on edible and ornamental plant
    • Absorbed in to the leaf for longer lasting effect
    • Strengthens and stimulates plants
    • Does not kill pest

    This product is available at the following Garden centres:
    • Alexandra Palace Garden centre
    • Neals Nursery Garden centre
    • Woods of Berkhamsted Garden centre

    £9.99
  • GRAZERS APHID RTU 750ml

    GRAZERS APHID RTU 750ml

    Grazers new and effective G3 formula that protects against cabbage white butterflies, caterpillars and aphids. Is completely harmless to people, pets and the planet making it great addition if you are gardening with the environment in mind! 750ml of ready to use spray can treat up to 30msq

     

    • New unique formula against cabbage white butterfly laying eggs plus caterpillar and aphid damage
    • Harmless to people, pets & the planet
    • Safe to use on ornamental plants as well as edible crops
    • Easy ready to use sprayer simply spray all foliage
    • Strengthens and stimulates plants

    This product is available at the following Garden centres:
    • Alexandra Palace Garden centre
    • Neals Nursery Garden centre
    • Woods of Berkhamsted Garden centre

    £6.99
  • GRAZERS RABBIT&DEER CONCENTRATE 375ml

    GRAZERS RABBIT&DEER CONCENTRATE 375ml

    A fantastic and sustainable product that helps in the fight to protect your much loved plants from the damage sometimes caused by rabbits, pigeons, geese and deer. Grazers do not harm the animals but simply deter them from the plant and search elsewhere for their next meal! As well as protecting, it can also encourage growth and strengthen the plant effectively feeding whilst protecting. Win win! This is a concentrated version which, when diluted, will treat up to 1000sqm.

    • Effective against damage from rabbits, deer, pigeons & geese
    • (Also against mice, vole and squirrel damage)
    • Used successfully by farmers since 1999
    • Safe to use on edible and ornamental plants
    • Absorbed and grows with the plant
    • Lasts up to 6 weeks
    • Harmless to people & pets
    • Strengthens and stimulates growth

    This product is available at the following Garden centres:
    • Alexandra Palace Garden centre
    • Neals Nursery Garden centre
    • Woods of Berkhamsted Garden centre

    £11.99
  • GRAZERS RABBIT&DEER RTU 750ml

    GRAZERS RABBIT&DEER RTU 750ml

    A fantastic and sustainable product that helps in the fight to protect your much loved plants from the damage sometimes caused by rabbits, pigeons, geese and deer. Grazers do not harm the animals but simply deter them from the plant and search elsewhere for their next meal! As well as protecting, it can also encourage growth and strengthen the plant effectively feeding whilst protecting. Win win!  It is ready to use straight away to protect vulnerable plants and will treat up to 30sqm.

    • Effective against damage from rabbits, deer, pigeons & geese
    • (Also against mice, vole and squirrel damage)
    • Used successfully by farmers since 1999
    • Safe to use on edible and ornamental plants
    • Absorbed and grows with the plant
    • Lasts up to 6 weeks
    • Harmless to people & pets
    • Strengthens and stimulates growth

    This product is available at the following Garden centres:
    • Alexandra Palace Garden centre
    • Neals Nursery Garden centre
    • Woods of Berkhamsted Garden centre

    £6.99
  • GRAZERS SLUG CONCENTRATE 350ml

    GRAZERS SLUG CONCENTRATE 350ml

    An effective and sustainable way to reduce the damage caused by slugs and snails in your garden. Grazers is completely safe around humans and pets and does no harm to the environment, perfect for if you are trying to garden sustainably and reduce the amount of chemicals used. As this is a concentrate it will need to be diluted with water before application. Once diluted it will make up to 10L of ready to use liquid.

    • New unique formula against slug & snail damage
    • Makes 10 litres of spray ready to use
    • Harmless to people, pets & the planet
    • Safe to use on edible and ornamental plants
    • Easy ready to use sprayer simply spray all foliage
    • Absorbed in to the leaf for longer lasting effect
    • Strengthens and stimulates plants

    This product is available at the following Garden centres:
    • Alexandra Palace Garden centre
    • Neals Nursery Garden centre
    • Woods of Berkhamsted Garden centre

    £9.99
  • GRAZERS SLUG RTU 750ml

    GRAZERS SLUG RTU 750ml

    Safe and effective formula harmless to pets and the planet helping strengthen and stimulate growth. Apply the product by directly spraying onto the foliage, not only is the plant being treated against potential damage and growth it will be stimulated and strengthened in the long run.

    • Harmless to people, pets and the planet. Strengthens and stimulates growth.
    • Absorbed into the foliage for longer lasting control.
    • Easy ready to use spray, no dilution necessary.
    • Treats an area of plants up to 30m2  Contents: 750ml

    This product is available at the following Garden centres:
    • Alexandra Palace Garden centre
    • Neals Nursery Garden centre
    • Woods of Berkhamsted Garden centre

    £6.99
  • Topbuxus Health 1 Box 24 buckets

    Topbuxus Health 1 Box 24 buckets

    Health mix is a ideal way to keep your box bushes healthy, strong and green. Apply one of the tablets in a 1 Litre jar of water, wait a few minutes and then pour the liquid into a spray bottle and begin spraying your box bushes to keep them at their healthiest.

    • Apply 1 to 5 times a year.
    • Apply between March and October.
    • Contains 10 effervescent tablets of 20g each.
    • Non-chemical, great for organic use.
    • Easy to handle
    • Safe to use
    • Suitable for use in gardens and on allotments

    This product is available at the following Garden centres:
    • Alexandra Palace Garden centre
    • Neals Nursery Garden centre
    • Woods of Berkhamsted Garden centre

     

    £16.99
  • Super Strength Seaweed 1lt

    Super Strength Seaweed 1lt

    A fantastic and organic fertilizer for all garden plants. Great for use on flowers, fruit and vegetables. This fertiliser can be used on plants of all ages from seedlings and young plants right up to the most established plants in your garden.

    • For strong, vital growth in all flowers, fruits and vegetables
    • Stimulates sprouting and root growth
    • Generates higher yields when used on edibles
    • 100 % natural ingredients
    • Suitable for Organic gardening
    • Makes up to 100 L

    Size: 1 Litre

    This product is available at the following Garden centres:
    • Alexandra Palace Garden centre
    • Neals Nursery Garden centre
    • Woods of Berkhamstead Garden centre

    £9.99
  • Plant Invigorator 750ml

    Plant Invigorator 750ml

    Ready to use plant tonic made from natural plant extracts. It aids the optimal nutrition of flowers, fruit and vegetables resulting in strong and healthy growth. Strengthens plants’ ability to withstand stress from pest and disease attack. Plant invigorator leaves no harmful residues in areas of application and may be used on both edible and ornamental plants. No waiting time until you harvest. This product is not classified as harmful to bees.

    • Contains fatty acids, algae extract
    • Aids optimal plant nutrition resulting in strong growth and vital plants
    • Healthy plants are less susceptible to disease
    • Leaves no harmful residues in areas of application and may be used on both edible and ornamental plants – no waiting time until harvest
    • No toxicity to bees and other beneficial insects
    • Suitable for use in gardens and on allotments

    Size: 750 ml

    This product is available at the following Garden centres:
    • Alexandra Palace Garden centre
    • Neals Nursery Garden centre
    • Woods of Berkhamstead Garden centre

    £6.49
  • Superfast Weedkiller RTU 3lt

    Superfast Weedkiller RTU 3lt

    An environmentally friendly and effective method of controlling weeds in your garden. Fantastic against tough and perennial weeds.

    • Active ingredient content 186.7 g/l pelargonic acid, 30 g/l maleic hydrazide
    • Visible results within 1 day after treatment
    • Complete herbicide for both weeds and grasses
    • Works against problematic weeds such as goutweed, field horsetail, mosses and algae
    • Effective at low temperatures
    • Biodegradable
    • Suitable for use in gardens and on allotments

    Application:

    • Mix 1 part to 5 parts water, i.e.100 ml mixed with 500 ml of water, for an area of 6 m² weeds
    • 1 litre is sufficient for up to 180 m² (individual plant treatment)
    • Drench the weeds thoroughly to guarantee an optimum absorption of the active ingredients

     

    £16.99
  • Rootgrow RHS 360g

    Rootgrow RHS 360g

    This larger bag is by far the most popular size available. A years supply for the average gardener. One pouch will treat up to a 100Litre container or 19x2L pots. But as this product can be used on practically anything you want to plant, you may well need more than one bag for the year. Especially if you are planting an entire bed or border. It is well worth investing in Rootgrow as the benefits are incredible and really help establish new plants.

    Rootgrow  contains mycorrhizal fungi which naturally increase nutrient and water uptake by forming a highly efficient secondary root system.

    Comes with a handy 10ml scoop.

    Size: 360g

    £9.99
  • Rootgrow RHS 150g

    Rootgrow RHS 150g

    Rootgrow is a fantastic product for when planting new plants. An economical mid range pack size. One pouch will treat up to 8×2 Litre pots or a 50L pot. Simply remove your plants from their pots and dust the root ball evenly, then plant into desired location or pot and firm in sufficiently to remove air pockets. Water plants in and let the Rootgrow perform its magic! Perfect for planting all plants and a real benefit to the development of anything newly planted

    Rootgrow contains mycorrhizal fungi which naturally increase nutrient and water uptake by forming a highly efficient secondary root system.

    Comes with a handy 10ml scoop!

    Size: 150g

    £4.99
  • Afterplant Rose Food 1kg

    Afterplant Rose Food 1kg

    Empathy Afterplant Rose Food is the first product in the Empathy range to include both mycorrhizal fungi and beneficial bacteria. This combination offers a lifetime of benefits to the treated plant. The bacteria in the product are nitrogen fixing bacteria that can increase nitrogen flow into the plant. These species also produce natural plant growth promoting hormones, such as auxins that naturally encourage healthy plant growth. Roses are known to be hungry plants and they really benefit from being fed in the spring and during the flowering period

    The product is a dry granule formulation and is ideal as an early season treatment at the first signs of growth, following first flush and throughout the growing season.

    Apply 1-2 handfuls per rose bush, apply evenly around the base, working gently into the soil and water well.

    £6.99
  • Afterplant Evergreen Food 1kg

    Afterplant Evergreen Food 1kg

    The Empathy After Plant range not only provides essential nutrients to your plants but also conditions the soil and enriches soil biology. This offers long lasting growth benefits in the most natural way possible and is viable substitute to pure chemical NPK fertilisers. The range is endorsed by The RHS and supports the RHS mission to ‘Sharing the best in Gardening’

    • Contains root grow mycorrhizal fungi
    • Improved plant establishment and survival
    • Feeds the soil and the plant
    • good for all Evergreens especially buxus, bay and conifers
    • Alternative to chemical or synthetic fertiliser

    This product is available at the following Garden centres:
    • Alexandra Palace Garden centre
    • Neals Nursery Garden centre
    • Woods of Berkhamsted Garden centre

    £6.99
  • Neudorff Ant Bait Station

    Neudorff Ant Bait Station

    The product is applied undiluted to a reusable bait trap. Place near ant nests or directly onto ant trails nearby with a maximum application of 4 times in a 2 weeks period. Do not place the bait station in direct sunlight as it will cause the bait solution to dry out more quickly which will reduce the effective of the lifespan of the bait.

    • Good visibility of bait consumption due to transparent lid
    • Certified for organic use
    • Ants carry the bait directly into their nest, where it exterminates the entire nest
    • Refillable ant bait station to control all ants on patios, balconies and paths as well a indoors
    •  Active ingredient content 0.015 % w/w spinosad

    This product is available at the following Garden centres:
    • Alexandra Palace Garden centre
    • Neals Nursery Garden centre
    • Woods of Berkhamstead Garden centre

     

    £5.99
  • Slug Gel 650ml

    Slug Gel 650ml

    Defenders Slug Gel is a non-toxic, odour-free, colourless gel that forms a barrier that protects plants from slugs and snails. Formulated using natural ingredients it is safe for use around children and animals including birds, dogs and hedgehogs. Unlike dry granular products, Slug Gel stays effective in both wet and dry weather conditions and will continue working for up to two weeks.

    Open cap and apply a continuous barrier, 3-5mm wide enclosing the area in need of protection, preferably 10-20cm away from the plants themselves. This product has been approved for organic use so is perfect for people who want to protect their much loved plants in a sustainable way.

    Size: 650ml

    This product is available at the following Garden Centres:

    • Alexandra Palace Garden Centre
    • Neals Nursery Garden Centre
    • Woods of Berkhamsted Garden Centre
    £4.99
  • Maxicrop Natural Seaweed Extract Plus Sequestered Iron 500ml

    Green Manure Thompson & Morgan

    £6.99
  • Vitax Copper Slug Tape 4m

    Vitax Copper Slug Tape 4m

    This pack contains enough tape to protect at least 12x five inch pots. When a slug or snail attempts to cross the copper strip a tiny electrical charge is then created within the copper turning them away.

    • Popular, traditional method of deterring slugs and snails
    • Adhesive copper tape barrier
    • Emits a tiny electrical charge when touched by slugs or snails causing them to turn away
    • Excellent for use on pots, planters and greenhouse staging

    This product is available at the following Garden centres:
    • Alexandra Palace Garden centre
    • Neals Nursery Garden centre
    • Woods of Berkhamstead Garden centre

    £6.49
  • SILENT ROAR

    SILENT ROAR

    Silent Roar is a nitrogen based fertilizer known as a green product which contains no chemicals. During normal weather one application can last up to a total of 3 months. After heavy rain sprinkle a few more pellets.

    • Separate the pellets 3-4 inches apart
    • 0.5kg of silent roar
    • Soaked in real essence of lion dung and then dried & sterilised
    • One application can last up to 3 months
    • After heavy rain sprinkle a few more pellets
    • Always handle the pellets with gloves provided
    • Wash and dry hands after use
    • Sustainable product

    This product is available at the following Garden centres:
    • Alexandra Palace Garden centre
    • Neals Nursery Garden centre
    • Woods of Berkhamstead Garden centre

    £10.99
  • Neudorff Organic Lawn Feed 2.5Kg

    • Organic compound fertiliser NPK 9-3-5 made with animal by-products, fermented vegetation residues, organic materials and living microorganisms
    • For a thick and green lawn that suppresses moss and weeds
    • Fast acting and long lasting fertiliser
    • With Mycorrhiza fungi to promote strong roots and plants
    • With soil improving microorganisms
    • Improves soil condition
    • Contains nitrogen, phosphate, potassium and Mycorrhiza fungi for improved resistance against drought and frost
    • Granulated for use with fertiliser spreaders
    • Use the fertiliser from March to June, additionally in September/October

    This product is available at the following Garden Centres:

    • Alexandra Palace Garden Centre
    • Neals Nursery Garden Centre
    • Woods of Berkhamstead Garden Centre
    £7.99
  • Vitax Organic 2 in 1 Concentrate 250ml

    Vitax Organic 2 in 1 Concentrate 250ml

    A blend of natural oils and emulsifiers with added seaweed. Use as a Spring and Summer spray to removed insect debris, dust, dirt and the accumulation of wax and other substances insects use to secure their eggs on plants. This helps deprive insects of the opportunity to successfully deposit viable eggs on the plant. Spraying will remove any other contaminates from the leaf surface, facilitating maximum light exposure for healthy plants. The seaweed extract stimulates plant growth, naturally strengthening the plants ability to withstand stress and insect or disease attack.

    •  Suitable for organic gardening
    • Can be used on edible or ornamental plants
    • Can be used outdoors or under glass

    This product is available at the following Garden centres:
    • Alexandra Palace Garden centre
    • Neals Nursery Garden centre
    • Woods of Berkhamstead Garden centre

    £9.99
  • Maxicrop Natural Seaweed Extract Plus Sequestered Iron 1L

    Maxicrop’s Sequestered Iron is a natural seaweed extract with 2% w/w sequestered iron – to prevent or alleviate iron deficiency (yellowing) in flowers, fruit and vegetables. Sequestered Iron is ideal for healthy rhododendrons, azaleas, heathers and other acid loving plants. The combination of seaweed extract and sequested iron in this Maxicrop product helps produce rich green leaf colour. Available in 500ml, 1 litre and 10 litre bottles.

    £9.99
  • Maxicrop Organic Seaweed Meal 2 Kg

    Maxicrop's Organic Seaweed Meal is an organic, natural soil conditioner that will encourage strong healthy growth all round the garden. Seaweed Meal encourages beneficial soil microbes and makes valuable humus. It is also rich in minerals and trace elements. Seawed Meal is an ideal spring lawn dressing and also an excellent compost activator. Approved for Organic growing by the Soil Association.

    £14.99
  • Maxicrop Organic Lawn 1L

    Maxicrop Organic Lawn 1L

    The Maxicrop Organic Lawn provides a plant growth stimulant that is made from pure seaweed extract. Seaweed contains vital plant growth stimulants, and this Organic Lawn is easy to use as it is in liquid form. The seed emergence will improve, as well as the root establishment and builds resistance to pests and disease.

    The seaweed will stimulate the beneficial soil microbes which will then result in an improved root system. With an improved root system; your lawn will be able to take up more soil nutrients and water. In turn, this will help to keep the grass greener, with more chlorophyll, that will improve the use of sunlight energy for carbohydrate production.

    The balance of natural fertiliser will result in a better and healthier growth from your lawn.

     

    This product is available at the following Garden Centres:

    • Alexandra Palace Garden Centre
    • Neals Nursery Garden Centre
    • Woods of Berkhamstead Garden Centre
    £9.99
  • Maxicrop Natural Fertiliser for Organic Growing 1L

    The Maxicrop Natural Fertiliser that is suitable for use as foliar feed or applied to the roots or soil as a drench. A liquid fertiliser that is 5:2:5 NPK with added seaweed and plant extracts, it is designed to be the perfect supplement for plant nutrition during the growing season. It can be safely used on a wide range of crops and plant types.

    Approved by the Soil Association for use in organic production systems, the Maxicrop Natural Fertiliser will promote rich and healthy growth, boosting the activity of naturally occurring microbes.

     1L

     

     

    This product is available at the following Garden Centres:

    • Alexandra Palace Garden Centre
    • Neals Nursery Garden Centre
    • Woods of Berkhamstead Garden Centre
    £8.99
  • Maxicrop Natural Seaweed Extract Plus Complete Garden Feed 500ml

    Compound fluid fertiliser with a combination of pure Seaweed Extract plus a balnced NPK. Will help rooting and establishment, whilst producing stronger, healthier plant growth with improved resistance to pests, diseases and environmental stress.

    £6.99
  • Neudorff Superfast & Long Lasting Weedkiller Concentrate 1L

    Neudorff Superfast & Long Lasting Weedkiller Concentrate 1L

    Superfast & Long lasting weed killer is applied to control a variety of weeds including chickweed, chamomile, speedwell, buttercup, creeping, thistle, mosses and algae. Apply the product directly on the weeds using the sprayer. weeds must be dry before application.

    • Active ingredient content 186.7 g/l pelargonic acid, 30 g/l maleic hydrazide
    • Visible results within 1 day after treatment
    • Long lasting
    • Complete herbicide for both weeds and grasses
    • Works against problematic weeds such as goutweed, field horsetail, mosses and algae
    • Effective at low temperatures
    • Biodegradable
    • Suitable for use in gardens and on allotments

    This product is available at the following Garden centres:
    • Alexandra Palace Garden centre
    • Neals Nursery Garden centre
    • Woods of Berkhamstead Garden centre

    £17.99
  • Maxicrop Natural Seaweed Extract Plus Tomato Fertiliser 500ml

    A potassium enriched seaweed extract and fertiliser (5.1:5.1:6.7) that provides bio-stimulant benefits alongside the right mix of nutrients for productive growth. While specifically formulated to improve size, shape and flavour of tomato crops, Maxicrop Plus Tomato Fertilizer can also be used across a range of horticultural crops.

    £5.49
  • Maxicrop Organic Tomato 1L

    The Maxicrop Organic Tomato Fertiliser is a potassium enriched extract that will provide the benefits of bio-stimulant alongside the perfect mix of nutrients for a productive and healthy growth.

    It is specifically formulated to improve the size, shape and flavour of your tomato crops. A versatile formula that can be used across a range of horticultural crops.

    Made from plant extracts and seaweed, that helps to stimulates beneficial soil microbes which then results in an improved root system, allowing your plants to absorb more nutrients and water. The seaweed will also help to make leaves greener with more chlorophyll that improves the use of sunlight energy for carbohydrate production. With this balance, the natural fertiliser from the plant extracts will make your tomatoes healthy and scrumptious, as well as providing a high yielding!

    1L

     

     

    This product is available at the following Garden Centres:

    • Alexandra Palace Garden Centre
    • Neals Nursery Garden Centre
    • Woods of Berkhamstead Garden Centre
    £8.99

Latest Sustainable Gardening Posts

JOIN IN THE BIG BUTTERFLY COUNT

The ‘Big Butterfly Count’ finishes on August 12th, so if you’ve not begun counting already then you still have [...]

Read More

BEST SMALL TREES FOR BEES

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Read More

7 Eco-Friendly Ways to Recycle Materials in the Garden

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The Beginner’s Guide to Urban Beekeeping

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