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3 for 2 on Chempak Fertiliser

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5 petunia plants only £2.99 with every order

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Chempak® Sequestered Iron with Magnesium & Manganese

2 Options from £7.99

1 Review
1 x 250g pack £7.99 Despatch: by Monday
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10 x 250g packsSave £29.90 £79.90 £50.00 Despatch: by Monday
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Please note: This product cannot be delivered outside the United Kingdom.
Description More Info Delivery Reviews
Corrects and prevents leaf yellowing and boosts plant health

Chempak 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:

Chempak fertiliser guide

1 x 250g pack (T14592)
10 x 250g packs (T14578)

Where to use:
Chempak Sequestered Iron is recommended for azaleas, camellias, conifers, heathers, magnolias, rhododendrons and all ericaceous plants. It is also useful for plants showing symptoms of iron deficiency e.g. alpines, bonsai, canes and fruiting plants and bushes, hydrangeas, fruit trees, roses, pot plants and all container grown plants.

How and when to use:
Apply at any time of year, although spring is best. Apply the easy-to-scatter iron granules uniformly over the root area. Water in or wait for rain to activate the granules.

The following is a general guide and should be adjusted according to the size of plants, degree of iron deficiency and extent of yellowing. General Rate:0.5oz per sq. yd (20gms sq. m) over the root area. Use double for larger and older specimens. Pots & Containers: Use a standard 5ml teaspoon Up to 12" diameter - 0.5 teaspoonful, 12-18" diameter - 1 teaspoonful, 24-36" diameter - 2 teaspoonsful.

Professional tips: A more permanent solution to lowering the pH of soil is the use of an acidifying agent. Chempak Sulphur chips are ideal for this purpose.


Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £1.95.

Orders which include any other products will incur a delivery charge of £4.95.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £6.90 will apply - regardless of the number of items ordered.

Large items may incur a higher delivery charge - this will be displayed in your shopping basket.

Please see our Delivery page for further details and details of any surcharges that may apply to certain destinations.

Satisfaction Guaranteed

For your complete peace of mind, our Home and Garden products may be returned to us within 30 days of purchase for a refund of the purchase price. Items must be returned unused, at your cost and in mint condition. All items carry a manufacturer's 12 month defects warranty.