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Fertilisers
Feeding your flowers and vegetables with essential nutrients in the correct balance and at the right time is vital for optimum growth. Featuring a wide range of Chempak® and Thompson & Morgan's own high quality, easy to apply fertilisers for flowers, fruit and vegetables.
We have found 46 products.
Chempak® Potato FertiliserChempak organic potato fertiliser is a specially formulated granular fertiliser with essential nutrients, in the correct balance, slowly released throughout the season to give tastier and increased yields of quality potatoes. (N:P:K - 6:5:7 + 4MgO) 1.2kg is sufficient for planting 4 x 3m (10ft) rows of potatoes. Useful links: More info |
Begonia FertiliserThese high quality fertiliser granules release a constant, controlled supply of nutrients to your begonias without wastage or leaching. Just one application feeds your begonias for the whole season. Easy to apply – just mix it with compost when potting up young begoniua plants or add to each planting hole before planting individual begonia plants in borders. More info |
Plug Boost FertiliserThese high quality fertiliser granules release a constant, controlled supply of nutrients to your plug plants without wastage or leaching. Just one application feeds your plants for the whole season. Easy to apply – just mix it with compost when potting up plug plants or add to each planting hole before planting individual young plants in borders. More info |
Chempak® Onion FertiliserChempak organic onion fertiliser is a specially formulated granular fertiliser with essential nutrients, in the correct balance, slowly released throughout the season to give tastier and increased yields of quality onions, shallots and garlic. 1.2kg is sufficient for planting 90 onion sets in a 9m (30ft) row. N:P:K - 4:6:12 + 4Mgo) Useful links: More info |
Push, Feed 'n' Forget™ Fertiliser Tablets Customer RatingJust one application will supply all the necessary nutrients to keep your container plants thriving by slowly releasing feed for up to 6 months. The tablets are quick and easy to use, just push one into the compost at the time of planting or add them at a later date. As a guide, 4 x 5g tablets will feed a 30cm (12") basket. (N:P:K – 18:6:12 + TE + 2mgo). More info |
Chempak® Vegetable FertiliserAn all-purpose base and top dressing with four distinct phases of release of the most important plant food; nitrogen, released in a steady flow over a period of time, in conjunction with phosphates and potash providing your plants with all the nutrients they need throughout the season.Useful links: More info |
Petunia FertiliserThese high quality fertiliser granules release a constant, controlled supply of nutrients to your petunias without wastage or leaching. Just one application feeds your petunias for the whole season. Easy to apply – just mix it with compost when potting up young petunia plants or add to each planting hole before planting individual petunia plants in borders. More info |
Comfrey PelletsAll the superb attributes of comfrey - rich in potash, trace elements and minerals - for all of your vegetable plants, particularly beneficial with potatoes. Apply the pellets direct when planting, 125g per sq.m, also makes a concentrated liquid feed (200g steeped in 1 litre of water for 3 days, then diluted 1:25 as a foliar feed). Pellets can be added to rotted garden/ farmyard compost, 600g incorporated in 125 kgs of compost. Comfrey pellets naturally enrich the soil, as a soil conditioner, essential for the long term health of your vegetable garden. More info |
Easy Feed FertiliserFeeding and watering in one easy step, and the perfect combination to ensure your baskets and containers reach their maximum potential. Slow-release fertiliser delivers all the necessary nutrients to help develop foliage, flowers and roots over a 9 month period, while SwellGel creates self-contained reservoirs of water for improved plant growth and less frequent watering. Guide application 3-4 x 5ml scoops for a 12-16 inch basket. (12-3-8 with trace elements). More info |
Geranium FertiliserThese high quality fertiliser granules release a constant, controlled supply of nutrients to your geranium without wastage or leaching. Just one application feeds your geraniums for the whole season. Easy to apply – just mix it with compost when potting up young pelargonium plants or add to each planting hole before planting individual geranium plants in borders. More info |
Chempak® Soluble Tomato FoodFOR ALL CHERRY & STANDARD VARIETIES A soluble food for tomatoes, cucumbers, peppers, courgettes, aubergines and soft fruit, to make sure you get bigger and better quality fruit. DIRECTIONS FOR USE Tomato plants are greedy feeders, requiring a continuous supply of nourishment. Chempak Tomato Food is specifically formulated with essential nutrients, in the correct balance, for heavier cropping of top quality fruit. Added trace elements play a vital role. Magnesium aids fruit setting and keeps the foliage healthy; iron and manganese give colour, flavour and finish; calcium helps prevent Blossom End Rot. Useful links: Chempak fertiliser guide How to grow tomatoes |
Comfrey 'Bocking 14'Symphytum x uplandicum 'Bocking 14', Russian Comfrey Grow your own soil conditioner! Comfrey ‘Bocking 14’ contains high levels of basic NPK nutrients and because it is a sterile hybrid, it won’t self seed all over your garden. The nutrient rich foliage of comfrey can be used as a compost activator, mulch, or soaked in barrels of water for 3 to 5 weeks to make a useful liquid feed for tomatoes and beans. Scatter the wilted leaves throughout potato trenches just before planting, to fertilise the crop and improve their flavour! Once established, this quick growing plant can be cut 3 or 4 times throughout the growing season, for a constant supply of nutrient rich, organic, comfrey fertiliser. Height: 100cm (40”). Spread: 75cm (30”). Useful links: More info |
rootgrow™rootgrow™ Seed & Bulb companion is a specially formulated blend of UK origin mycorrhizal fungi that will benefit virtually all seeds, plants and bulbs (except brassicas, rhododendrons, azaleas, heathers, cranberries or blueberries). In a matter of weeks seedlings will develop a huge secondary mycorrhizal root system, supporting your plants for their entire lifetime, supplying nutrients that will greatly enhance flowering and fruiting.
 Andrew Tokely say's"Rootgrow can be used with all seeds, bulbs and shrubs & roses - with the exception of Brassicas (cabbage, sprouts, cauliflower, broccoli), Rhododendron, Azalea, heather, cranberries and blueberries. It is easy to use, just sprinkle the required amount in the planting hole to help your plants establish an improved natural vigour, a stronger root system and better drought tolerance. When planting a 2-3 litre pot, use 25 grams of rootgrow (our 80gm sachet is enough for 3 plants), if planting a 9cm pot use 5gm per planting whole (our 80gm pack enough for 16 plants)." |
Chempak® Winter Food for Citrus TreesSpecially formulated winter plant feed. Chempak Winter Food for Citrus Trees is a balanced fertiliser containing natural trace elements, which will encourage natural sustained winter activity, including fruit ripening. It will also help to prevent leaf fall and leaf discolouration.Useful links: More info |
Chempak® Clematis FoodThe perfect fertiliser feed for all your climbing plants. Chempak Clematis Food is excellent for clematis, honeysuckles, hanging baskets, bedding plants, flowers, fruit, vegetables, dahlias, houseplants, gladioli, ornamental trees, begonias, fuchsias and geraniums.Useful links: More info |
Strawberry FertiliserThese high quality fertiliser granules release a constant, controlled supply of nutrients to your strawberries without wastage or leaching. Just one application feeds your strawberries for the whole season. Easy to apply – just mix it with compost when potting up young strawberry plants or add to each planting hole before planting individual strawberry plants in borders. More info |
Chempak® Summer Food for Citrus TreesHIGH NITROGEN FERTILISER FORMULA TO BOOST BUSHINESS AND GROWTH. Ideal for helping to prevent fruit drop and premature ripening of immature fruits. Also helps to prevent leaf discoloration.Useful links: More info |
Chempak® Orchid Growth FormulaHIGH NITROGEN FOOD FOR STRONG AND STURDY ORCHID GROWTHHigh nitrogen liquid fertiliser containing plant foods, magnesium and six trace elements to promote growth in all species of orchids at all stages of growth from young plants to mature specimens.Useful links: More info |
Chempak® High Potash Feed - Formula 4High potash summer fertiliser for tomatoes, flowers and vegetables. The soluble plant food for better blooms and bigger crops. All Chempak Soluble Plant Foods contain seven essential trace elements, far more than ordinary soluble fertiliser. These trace elements are absolutely necessary to plant growth and serious disorders can occur if any are absent. They are fully soluble which means they start to work instantly.Useful links: More info |
Chempak® High Nitrogen Feed - Formula 2THE EARLY SEASON FERTILISER FOR GREENHOUSE AND GARDEN. A soluble rapid growth plant food formula as used by exhibition growers with higher nitrogen for spring feeding.All Chempak Soluble Plant Foods contain seven essential trace elements, far more than ordinary fertiliser. They are fully soluble which means they start to work instantly. Chempak Formula 2 has a high nitrogen content, particularly useful for the start of the season, getting the leaves and stems of young plants off to a strong start.Useful links: More info |
Fuchsia FertiliserThese high quality fertiliser granules release a constant, controlled supply of nutrients to your fuchsias without wastage or leaching. Just one application feeds your fuchsias for the whole season.Easy to apply – just mix it with compost when potting up young fuchsia plants or add to each planting hole before planting individual fuchsia plants in borders. More info |
Bulb FertiliserGive your bulbs a boost with this Universal Bulb fertiliser. This unique blend of controlled release fertiliser will supply your bulbs with all the nutrients that they require to flower to their fullest potential. No further feed is required as Universal Bulb Fertiliser works for up to 6 months. Easy to apply – just mix it with compost prior to planting or add to each planting hole before planting individual bulbs. More info |
Onion FertiliserSpecially formulated granular fertiliser of high phosphate to feed your onions, shallots and garlic through the growing season to promote better bulb development. (6-8-15) Supplied in two sizes.3kg is sufficient for 150 planting sets. More info |
Chempak® Fully Balanced Feed - Formula 3MULTI PURPOSE BALANCED PLANT FOOD FORMULA FOR ALL HOUSE AND GARDEN PLANTS The soluble fertiliser used by professionals and leading growers.All Chempak Soluble Plant Foods contain seven essential trace elements, far more than ordinary soluble fertiliser. These trace elements are absolutely necessary to plant growth and serious disorders can occur if any are absent. They are fully soluble which means they start to work instantly. Chempak Formula 3 has identical proportions of the primary nutrients nitrogen, phosphate and potash, which make it perfect for all plants all year round.Useful links: More info |
Chempak® Trench FertiliserSlow release fertiliser with high trace element content. Use over winter to prepare soil for exhibition standard flowers and vegetables, (chrysanthemums, dahlias, leeks, onions, sweet peas, roses etc.)Useful links: More info |
Chempak® Palm FertiliserThe perfect feed for all indoor and outdoor species of palms, potted or soil grown. High magnesium and trace element levels.Useful links: More info |
Chempak® Potting Base with Soluwet Wetting AgentINEXPENSIVE AND EASY WAY TO CONVERT PEAT INTO POTTING COMPOSTChempak Potting Base is a reliable method for converting peat into compost which is ideal for re-potting and potting on plants and hanging baskets, window boxes, patio containers and shrubs, planters, large pots and growing bags. Use in conjunction with Soluwet Wetting Agent which will help to 're-wet' the compost, promote germination, lessen evaporation and reduce watering.Useful links: More info |
Chempak® Sequestered Iron with Magnesium & ManganeseCORRECTS AND PREVENTS LEAF YELLOWING AND BOOSTS PLANT HEALTHChempak Sequestered Iron is a fast, effective method of preventing and correcting leaf chlorosis or yellowing, a problem usually caused by high pH or limey soils. Iron is a vital trace element which is commonly unavailable to plants because of adverse soil conditions. Chempak Sequestered Iron also contains magnesium and manganese, both essential trace elements.Useful links: More info |
Chempak® Low Nitrogen Feed - Formula 8A SUMMER FERTILISER FOR HEATHERS, CONIFERS AND OTHER PLANTS. USEFUL FOR BUILDING UP VEGETABLESA fully soluble lower nitrogen plant food for mature growth.All Chempak Soluble Plant Foods contain seven essential trace elements, far more than ordinary soluble fertiliser.These trace elements are absolutely necessary to plant growth and serious disorders can occur if any are absent. They are fully soluble which means they start to work instantly.Useful links: More info |
Chempak® Lawn Green FertiliserThis is a high nitrogen, soluble lawn feed, the nitrogen content coming primarily from urea. Being soluble it is easy to apply by watering can, and/or hose end dilutors.Useful links: More info |
Chempak® MagnesiumSpecialist plant food to put the colour back into flowers and vegetable greenery.Useful links: More info |
Chempak® Calcium Multi Action FertiliserBOOSTS CROP GROWTH. HELPS PREVENT DISORDERS SUCH AS BLOSSOM END ROT, LETTUCE TIP BURN AND APPLE BITTER PITSpecially formulated plant food which provides a rapid uptake of calcium and nitrogen, Chempak Calcium offers multipurpose action for improved growth, higher yields and healthy plants and can be used for fruit, vegetables, tomatoes, bedding plants etc.Calcium is an important plant food required by all plants in moderate quantities. A deficiency has serious effects on plant growth.Chempak Calcium provides both water soluble nitrogen and calcium which are essential elements for plants. This unique property has advantages not found in other fertiliser, making it one of the most valuable nutritional products on the market today.Useful links: More info |
Chempak® Seed Base with Soluwet Wetting AgentINEXPENSIVE AND EASY WAY TO CONVERT PEAT INTO SEED AND CUTTING COMPOSTChempak Seed Base is a reliable method for converting peat into seed and cutting compost which is ideal for sowing seeds, striking cuttings and for the first potting up of seedlings. Use in conjunction with Soluwet Wetting Agent which will help to 're-wet' the compost, promote germination, lessen evaporation and reduce watering.Useful links: More info |
Chempak® Ericaceous FertiliserSoluble plant food for rhododendrons, azaleas, hydrangeas, camellias, most heathers and conifers, pieris and other acid-loving plants.DIRECTIONS FOR USEChempak Ericaceous Fertiliser is a multifunctional product providing essential trace elements unavailable in high pH soils and an acidifier to lower soil pH, thereby releasing further natural trace elements. The unique lime-neutralising formula combats hard, limey water producing plants that show strong growth and good foliage.Useful links: More info |
Chempak® Fuchsia FeedTHE PERFECT SOLUBLE PLANT FOOD FOR FABULOUS FUCHSIASThis specialist plant food for all types of fuchsia means bigger plants and better flowers.Chempak Fuchsia Food will produce the very best plants. An almost balanced formulation with a slightly higher potash content, high magnesium and trace elements for strong colour and healthy dark foliage. Fully soluble, the formula will start to work instantly.Useful links: More info |
Chempak® SulphurIMPORTANT TRACE ELEMENT GIVES ERICACEOUS PLANTS THE IDEAL SOIL BASE FOR HEALTHY GROWTHMany ericaceous plants will not grow, or will show signs of trace element deficiencies if the soil is not ideal for that plant. Most common ericaceous (lime-hating) plants will not grow in limey soils. Chempak Sulphur chips will gradually reduce the pH content to make the soil suitable for healthy growth.Useful links: More info |
Chempak® Cactus and Succulent FertiliserA water soluble, higher phosphate feed ideal for Cactus and Succulents growing in small containers, often in artificial light conditions.Useful links: More info |
Chempak® Multipurpose Compost BaseCONVERTS PEAT INTO MULTIPURPOSE COMPOSTChempak Multipurpose Compost Base is precisely balanced to allow germination of seeds, yet strong enough for vigorously growing plants. It makes a true multipurpose compost – this is ideal for all growing environments, inexpensive and gives superb results.MAKES 100 LITRES - Sufficient compost for at least:-28 seed trays or 240 x 3½” pots,or 80 x 5” pots or 40 x 7” pots,or 25 x 8” pots or 18 x 9” pots,or 12 x 10” pots or 3 x growing bags.Useful links: More info |
Chempak® Yearlong FertiliserA once a year feed and forget fertiliser continuously releasing nutrients, providing a controlled flow of plant food just where it is needed around the root system.Ideal for all trees, shrubs and ericaceous plants and particularly recommended for long term feeding of container plants. Useful links: More info |
Chempak® Orchid Bloom FormulaHIGH PHOSPHATE AND POTASH FEED FOR BEAUTIFUL BLOOMSHigh phosphate and potash liquid fertiliser containing plant foods, magnesium and six trace elements to promote flower formation in all species of orchids.Useful links: More info |
Tomato FertiliserThese high quality fertiliser granules release a constant, controlled supply of nutrients to your tomatoes without wastage or leaching. Just one application feeds your tomatoes for the whole season. Easy to apply – just mix it with compost when potting up young tomato plants or add to each planting hole before planting individual tomato plants in borders. Useful links: More info |
Chempak® African Violet FertiliserA water soluble, high phosphate food with trace elements, which has been specially formulated for African Violet plants growing in small containers, often in artificial light conditions.Useful links: More info |
Chempak® Bonsai Tree FertiliserA water soluble, high phosphate feed with trace elements, specially formulated for Bonsai. Ideal for plants growing in small containers often in artificial light conditions.Useful links: More info |
Chempak® Orchid FertiliserA water soluble, all-purpose fertiliser to help get the best from your orchids. Ideal for plants growing in small containers often in artificial light conditions.Useful links: More info |
Clematis FertiliserThese high quality fertiliser granules release a constant, controlled supply of nutrients to your clematis without wastage or leaching. Just one application feeds your clematis plants for the whole season.Easy to apply – just mix it with compost when potting up young clematis plants or add to each planting hole before planting individual clematis plants in borders. More info |
Soluble FertiliserA nutritionally balanced, soluble plant food suitable for everyday general purpose feeding. More info |
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