Stocked in the GHAS shop.

Organic fertilisers and conditioners,
(click the fertiliser for more information)
Bonemeal
Helps plants build strong roots, produce more flowers, and grow healthy fruit.
It supplies calcium to build sturdy cell walls and helps prevent conditions like blossom-end rot in tomatoes.

Calcified seaweed,
 Breaks down heavy soil and rich in calcium and magnesium . Promotes stronger roots and plant growth. Good for Chrysanthemums, sweet peas, dahlias, leeks and onions.​

Fish Blood & Bone,
Feeds plants and soil: It supplies a balanced blend of the three major plant nutrients (NPK) to support overall vitality.
Encourages growth: Nitrogen (from the blood and fish) promotes strong, healthy green foliage and leafy growth.
Strengthens roots: Phosphorus (from the bone) slowly releases to build vigorous, deep root systems.
Boosts blooms and fruit: Potassium (potash) improves flower color, aids fruit and vegetable ripening, and increases crop yields.
Improves soil health: It stimulates beneficial soil microbes and bacteria, which improves soil structure, aeration, and drainage over time.
6X Pelleted Chicken Manure,
Provides Slow-Release Nutrients: It supplies essential macro-nutrients like nitrogen (for green leaf growth), phosphorus (for roots), and potassium (for overall health), releasing them gradually over a period of up to three months.
Conditions and Enriches Soil: The high organic matter content improves soil fertility, enhances water retention, and helps break down heavy clay or sandy soils.
Supports Soil Life: It feeds beneficial soil microorganisms and encourages earthworm activity, fostering long-term biological health in the garden.
Safe and Easy to Use: Unlike raw, uncomposted manure—which can scorch plant roots due to high ammonia levels—pelleted versions are heat-treated, sterilized, weed-free, and much less likely to burn plants.

​6 X Superstrength Natural Plant Feed Note, discontinued by supplier.

Other fertilisers and conditioners.
​Lime
Adds calcium and magnesium.  Neutralises acid soils. • Good for brassicas
Amonium Sulphate
Rapid boost for flowering plants, shrubs and fruit. Good for brassicas, lettuce, spinach, rhubarb, leeks and onions.
Growmore
Boosts Plant Health: Feeds flowers, vegetables, fruit trees, shrubs, and new lawns.
Improves Soil: Restores fertility to depleted or tired garden soil.
Prepares Ground: Acts as an ideal base dressing before laying new turf, sowing grass seed, or planting new beds.
Sustains Growth: Works as a top dressing around established plants during the growing season (typically applied every 4 to 6 weeks from February to October).

Potassium Sulphate
Improves strength and vigour of plants. Increases fruit yield. Good for tomatoes and cane fruits.

Potato Fertiliser,
Nitrogen (N): Fuels early green foliage growth so the plant can capture sunlight for photosynthesis.
Phosphorus (P): Strengthens root systems and triggers early tuber formation.
Potassium (K): Boosts the final size and quality of the potatoes by moving sugars into the tubers, while improving disease resistance and storage capability.

Sequestered Iron with Seaweed
Seaweed extract combined with sequestered iron acts as a powerful liquid tonic that corrects iron deficiencies, deepens foliage and flower color, and strengthens plants against environmental stress. 
Key Benefits for Plants
Cures Chlorosis: The sequestered iron bound in a way that remains soluble and available to plants even in alkaline or lime-rich soils) rapidly treats and prevents leaf yellowing, known as iron chlorosis. 
Boosts Growth and Roots: Pure seaweed extract provides natural plant growth stimulants that encourage strong root development, establishment, and overall vigor.

Superphosphate,
Root Growth: Stimulates deep, strong root systems, which helps young plants and seedlings establish quickly.
Flowering and Fruiting: Encourages abundant blooms, larger flowers, and higher fruit or vegetable yields.
Ripening: Helps transport sugars and proteins through the plant to ensure crops mature evenly and taste better.
Nutrient Support: Supplies calcium for strong cell walls and sulfur for healthy protein synthesis.

Tomato Food.
Drives flowers and fruit: The high potassium ratio (the "K" in NPK) signals plants to produce vibrant, abundant blossoms and larger, tastier fruit instead of just green leaves.
Supports overall health: It often contains extra minerals and trace elements like magnesium and seaweed extract to strengthen cell structure and improve crop quality. 
Best Plants to Use It On
Fruiting vegetables: Peppers, chillies, cucumbers, courgettes, and aubergines.
Fruiting plants: Strawberries, raspberries, and other soft fruits.
Flowering plants: Heavy-blooming summer bedding plants, roses, fuchsias, and geraniums. 
Compost Additives

Vermiculite
Water Retention: It absorbs up to three or four times its weight in water, which keeps the soil consistently moist for thirsty plants.
Nutrient Storage: It holds onto vital plant nutrients like potassium, magnesium, and calcium, releasing them slowly to the roots.
Improves Aeration: Its accordion-like structure prevents soil compaction, allowing oxygen to reach young roots.
Neutral pH: It has a neutral pH, meaning it will not change the acidity or alkalinity of your

Perlite
 The porous granules leave tiny gaps so roots can breathe easily.
Improves drainage: Excess water flows through rapidly, which stops the soil from becoming soggy and prevents root rot.
Prevents compaction: It keeps heavy potting mixes loose so growing roots face less resistance.
Aids propagation: It provides a clean, stable medium for starting seeds and rooting plant cuttings. 

​General Information

Ideally test your soil with a kit to find out the pH and Nitrogen, Phosphorous and Potassium levels, this will help you to decide  which fertilisers/ soil conditioners to use/you need. 

 Plants perform best when they are getting the optimum amount of sunlight, appropriate amounts of water and plenty of essential nutrients for good growth and production of flowers and fruit. Optimize plant growth by knowing how and when to fertilize.

Fertilisers provide the nutrients needed by plants to grow, form flowers and healthy foliage, produce more fruit, establish a strong root system and fight diseases and insect pressures. Plants benefit from fertiliser applications most when they are in their peak growth, and spring is one of those times!

The best time to fertilize is when many plants come out of dormancy in the springtime. In spring, deciduous plants leaf out, flowering plant buds begin to burst, stems and branches elongate and new roots are formed. Nutrients will aid in all of this growth, so the rule of thumb is to make an annual application of fertiliser in the early spring.

There are several ways to fertilize plants, including slow-release granular fertilisers, liquid feed applied to soil as a drench, foliar sprays and fertiliser stakes. In addition, using natural fertilisers such as compost can add nutrients to your soil.

Compost is decayed organic material from other plant materials and animal waste from livestock that has a diet mostly made up from plants. Those include chickens, cows and horses. 

Compost also can be made from waste such as grass clippings and fallen leaves, in addition to kitchen scraps such as coffee grounds, eggshells and fruit and vegetable peelings. Worm castings and mushroom composts are two additional composts that add nutrients to your soil.

Plants can have individual needs when it comes to fertilisers. Acid-loving plants such as azaleas, blueberries, camellias, hydrangeas and rhododendrons prefer more of an acidic soil pH to take up optimal nutrients. Flowering plants need more phosphorus to help stimulate stronger bud, fruit and flower development.

Vegetable plants benefit and require more frequent fertiliser applications throughout the season because they are producing and that makes them heavy feeders. Slow-release fertilisers can be incorporated at planting time for extended nutrient release.  Additionally, some growers utilise liquid fertilisers every other week.

Applying fertilizer in the wrong season can cause increased tender new growth that can be damaged, especially if applied in cold weather in late autumn or in winter. So it is best to stop fertilizing during dormant seasons. Additionally, in zones that can be in danger of a late freeze, it’s best to wait until mid-spring. Everyone could benefit from putting fertilizer application schedules in their calendars.

Some general rules to follow when fertilizing:

Avoid fertilizing new plants until they are fully established, because it can cause an increase in tender new growth that can make the plant weak and leggy.
Always follow the manufacturers recommended rates and application methods.
Fertilize outdoor plants in the coolest part of the day, such as early morning or late evening, especially in hot summer weather.
Always water in fertilizers well to distribute nutrients throughout the soil profile and to prevent burning.
Lastly, avoid excessive fertilizing and perform soil tests annually to see what nutrients your plants need.

With all fertilisers use gloves and wash your hands after use.