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Seactiv Calcified Seaweed - 25kg

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£7.70 excl VAT
£9.24 incl VAT
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Available >  In Store

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Available >  Home Delivery

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Description Customer Reviews Returns Policy Delivery Information



Seactiv Calcified Seaweed - 25kg.

Unique quick acting granular soil conditioning product designed to encourage natural life cycles, promote good soil structure and stimulate root production.

  • Organic approved

  • Source of calcium as a nutrient as well as a liming agent

  • Calcium oxide (CaO) 36.0 (25Ca)

  • Magnesium oxide (MgO) 2.5 (1.5Mg)

  • Apply at 200KG / Acre


first class fast delivery good product at a very good price
By mel  from swansea

Calcified Seaweed
Excellent product and excellent service. The price is very competitive as an added bonus

Very good value
Prompt delivery, quality product shall be returning to Mole Valley in future
By David  from Letchworth Garden City

good quality product, excellent for my allotment,very good service all round
By steven  from canterbury

Great product, great price, great service!
I had to ring up to order this product as there was a problem with the website, but I still got next-day delivery free of charge (there was a special offer going at the time). The price is excellent and the product is ideal if you need to reduce the acidity of your soil. My brassicas certainly seem to have appreciated it!
By Paul  from Norwich

Calcified seaweed
This was my first purchase from MoleValley. I was very pleased with the fast delivery and the product itself. I have rather acid soil and it is doing my vegetables a world of good. Best wishes, Betty
By Bettina  from Exmouth

Great service and a very good price. Highly recommended - both the product and Mole Valley. Thank you.
By PK  from Wroughton

Best value
Very pleased with the product and service from Mole Valley Farmers.
By Clare  from Northolt

Calcified Seaweed
Excellent service from MVF and excellent product at a great price.
By Robin  from Nottingham

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Return Policy

Returns and Refunds Policy

We hope you are completely satisfied with your purchase from Mole Valley Farmers Ltd.  If, however, you would like to return or exchange a product then please read the instructions below before sending your item back.  This will enable a smooth transaction.

Unwanted Goods

If you decide that you do not want an item that you have ordered, please complete the tear off slip at the bottom of your invoice and pack the products securely.  It is important that the returned items are in the best possible condition, so please take reasonable care of them.  See our Terms and Conditions.  Then post them to the address at the bottom of the returns slip.  Failure to complete the form may result in a delay in processing your return.

Please ensure that you obtain and retain a proof of posting when you return your goods.  This is to protect you in the event that your goods are lost in transit.

We can arrange a collection on your behalf for a charge.  To do so, please call 08456 033622.

Alternatively, you may return the item to your local branch. Find your nearest branch.

If you notify us of your intention to return a product you have purchased from us that you have taken reasonable care of within fourteen working days from the day after delivery we will issue you with a full refund.  The refund will be issued within 30 days of cancellation.

Faulty Goods

In the unlikely event that you receive faulty or damaged goods please call 08456 033622 to arrange collection of the goods.  Please have your order number ready.

You will be issued with a returns number that should be written down.  Please then re-package the goods and put a note of the returns number you have been given in with them.  Please write the address shown at the bottom of the returns slip (which accompanies your invoice) clearly on the parcel.  We will then arrange for your parcel to be collected.

There is no charge for the return of faulty goods.

You may also return faulty items to your local branch.  Find your nearest branch.

Restricted Goods

We are unable to offer in store refunds on certain types of goods due to restrictions:

  • Animal medicines  – general and vaccines
  • Agrochemicals - herbicides, pesticides and fungicides
  • Underwear
  • Frozen, refrigerated or temperature sensitive products
  • Animal feeds - products which are fed to animals destined for the human food chain
  • Equestrian Safetywear including riding hats and body protectors


Delivery Info

Website Delivery Policy

By default, the price of standard delivery to mainland UK addresses is shown in your basket, but will change if you live outside of mainland UK or if you select express delivery.  It will change automatically if you log in and save a delivery address that is outside of mainland UK.

Orders worth over £150 (excluding VAT) and weighing less than 30kg qualify for free standard delivery.  If your order qualifies and you would like to upgrade to express delivery you will be charged the upgrade fee only.

Whilst we make every effort to deliver within the stated timescales we are unable to guarantee circumstances beyond our control. We aim to dispatch all orders received before 12pm on the same day.

For security reasons we are only able to deliver your first order to the card holder’s billing address.  Subsequent orders may be delivered to an alternative delivery address.  Only customers who are members of Mole Valley Farmers (i.e. Farmer Shareholders, Country Members and Standard Account Holders) are exempt from this rule, because security checks are made during membership application.


Standard Delivery 3 – 5 Working Days

0 – 2kg


2 – 30kg


30 – 60kg


60 – 100kg


100 – 250kg


250 – 500kg   


500 – 750kg


750kg – 1000kg


1000kg – 2000kg


2000kg – 3000kg


Express Delivery (Next Working Day)

£3.00 surcharge

Refrigerated Transport

£12.00 surcharge


Zonal Surcharges

We can deliver to any address in the UK, including Northern Ireland, however certain regions incur delivery surcharges and certain orders may have restrictions:

0 – 2kg

  • Orders weighing between 0 – 2kg are not subject to any regional surcharges.

2 – 30kg

  • The following postcodes will be subject to a £8 surcharge and have no express delivery option:
    IV, HS, KA27-28, KW, PA20-49, PA60-78, PH17-26, PH30-44, ZE 

  • The following postcodes will be subject to a £11 surcharge and have no express delivery option:
    BT, IM, TR21-25.

30kg plus

  • The following postcodes will be subject to a £10 surcharge and have no express delivery option:

Grampians AB1 - 36 & 38 – 56

  • The following postcodes will be subject to a £15 Surcharge and have no express delivery option:

Highlands AB37, IV1-39, KW1-14, PA21-40, PH19-41, PH49

  • Customers requiring delivery to the following postcodes will be required to phone our customer services department on 0845 6033622 for a delivery quote due to their location and the weight of their order:

Scilly Isles, Northern Ireland, Isle of Man, Scottish Islands

(IM, BT, TR21 – 25, HS1 – 9, IV40 – 56, KW15 – 17, PA20, PA41 – 49, PA60 – 78, PA80 – 88, PH42 – 44, ZE1 – 23)

Peripheral Postages 

Whilst our aim to deliver within the stated timescales remains, it is likely that delivery will take 1-2 days longer to the following postcodes, due to their locations:

AB30-31, AB33-38, AB41 6-8, AB41-43, AB43 6-8, AB44-45, AB51-56 & 63, DD8-10, FK8 3, FK17-21, HS, IM, IV1-3, IV4-36 & 40 & 52-54, IV41-49 & 51 & 55-56, KA27, KA28, KW, PA20-49, PA62-77, PA60, PA61, PA78, PH, TD15 2, TR21-25 and ZE.

Channel Islands

Please note that we are currently unable to dispatch orders placed on the website to the Channel Islands.  However our Newton Abbot branch is able to take orders for delivery to the Channel Islands.   If you are interested, please contact the Branch on 01626 836555.

Free Delivery

Please note that free delivery codes only apply to standard delivery for orders up to 30kg and that zonal surcharges will still apply. Mother's Day Free delivery: Free standard delivery under 30kgs. Zonal charges may apply. Online only.  Ends midnight 9th March.


Customer Rating
5-Star Rating
9 customers rated this product.
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