The soluble fertiliser used by professionals and leading growers. Chempak Formula No 4 is a high potash summer fertiliser for tomatoes, flowers and vegetables.
Chempak No 4 is a balanced plant food with a high potash content (the fruit and flower maker) giving an all round boost to your garden and container plants.
Ideal for bedding plants, perennials, ornamental trees, peppers, tomatoes, potatoes, root vegetables, soft fruit, house plants, baskets and containers.
Normal strength use: Dissolve 2 level measures of crystals in 5 litres (approx 1 gallon) of water and apply to your plants every 7 to 10 days. Ensure the soil or compost is well moistened.
Frequent use: Dissolve 1 level measure in 10 litres (approx 2 gallons) of water and apply at every watering.
Makes up to 1500 litres / 300 gallons.
This updates realtime based on the amount you type into the quantity box, it doesn't include current items in your basket. Please use the delivery calculator on the basket page for a full delivery cost for the entire basket.
Click and Collect
We offer a free in-store collection facility whereby your goods can be ordered online and picked up at our Kirkmuirhill store. Please select "Click & Collect" at checkout. Our store is open Monday to Friday 8.00am to 4.30pm, closed for lunch 12pm to 12.30pm.
Product Volumes
All products are allocated an approximate volumetric size for delivery, multiple small items will fit into a 25kg volume sized parcel whereas most compost and fertiliser bags are around 25kg volumetric size. Delivery pricing is based on volumetric size or weight, whichever is higher to meet courier specifications.
Delivery Pricing
Whole UK up to 2kg - £4.19 inc VAT
Mainland UK excluding Scottish Highlands up to 200kg - £9.99 inc VAT per 25kg
Scottish Highlands up to 75kg - £25 inc VAT per 25kg
Over 200kg (75kg for Scottish Highlands) - £80 inc VAT per pallet of up to 40 compost sized bags per pallet
CTS Coverage (roughly bounded by A85 in Scotland to A66 in England) - £36 inc VAT up to 10 pallets using our own lorries.
We do not include delivery prices in the product price, which allows us to keep product costs down.
