Thompson & Morgan
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Chempak® High Potash Feed - Formula 4

High 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:

Chempak fertiliser guide

    • 1 x 800g pack

    •  
    • Despatch: By end of January 2017
    • £9.99
Where to use:
Chempak Formula 4 is a balanced plant food with a high potash content, perfect for boosting fruit and flowers, giving it an all round summer use on borders and vegetable plots.

Use on: bedding plants, peppers, soft fruit, perennials, potatoes, tomatoes, houseplants, fuchsias, ornamental trees, root vegetables, flowers and hanging baskets.

How & when to use:

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.

For more frequent use: Some gardeners prefer to use dilute feed more often. Dissolve 1 level measure in 10 litres of water and apply at every watering. At this strength this pack will make over 2,000 litres of plant food.

Professional tips:

Tomatoes: Feed weekly from early stages. Increase frequency to twice a week when fruiting to improve quality and yield.

Hanging Basket & Container Plants: The perfect summer feed for begonias, fuchsias, geraniums, and pelargoniums, etc. Use at bud stage and continue through the flowering period to ensure a succession of blooms.


Free Measuring Spoon & Feeding Guide included with every pack.

We offer FREE P&P when you spend over £60 or more on products.


Garden supplies will normally be delivered within the time period stated against each product as detailed above.


Unfortunately, we are unable to deliver garden supplies to the following postcode locations:
BT, GY, HS, IM, JE, ZE, TR21, TR22, TR23, TR24, TR25, KW, IV, PA20-38, PA41-49, PA60-78, AB31-38, AB40-56, PH4-44, PH49-50, PO30-PO41


Please see our Delivery / P&P page for further details.

Reviews
  1. Begonia

    By David Williams 08-10-2015

    I have grown begonia corms off and on for years. This year my wife and I planted 30 corms in a small garden and 3 in a wall basket. Feed has been Chempak 4 only. Using rainwater collected (no mains water) and feeding often, at the lower dilution every time, the results are staggering. It's October 8th now and the blooms are still coming and still the size of saucers. The stems are bigger than we have ever had. I've used all the big name common fertilizers available in the garden centres but nothing comes near to this product for flower production and strength of plant. Highly recommended. N.B. I live in the north midlands and quite elevated.

    Ryan
    08-10-2015

    Thank you very much for your review. I am glad that you have been happy with the results. I hope we can continue to be of service to you in the future.

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