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Buy 1 Get 1 Half Price Garden Ready Bedding

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Buy 2 Save £10.00 on This Variety

Use discount code POTM06 at checkout. Hurry While Stocks Last!

3 for 2 on Same Variety 9cm Plants

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Save up to £15 on Bird Care

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Get this item FREE when you spend £10.

Add this product to your basket PLUS a further £10 worth of any products. The free item will be automatically discounted during check out. Hurry! Only available for the first 2,023 orders - ends midnight Monday.

Mix 'N' Match Liquid Feed - Buy 3 Get Third Free

Please add 3 to your basket and the offer will automatically apply at checkout. Available on Marshalls Liquid Feeds.

Buy 1 Get 1 Half Price on same variety Super Plugs

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Buy 3 Perennial Garden Ready Plants and get 3rd FREE

Buy 3 get get 3rd free on the same variety and size plants. Please add 3 to your basket and the offer will automatically apply at checkout.

Buy any 3 packs of same variety & size plants and get 3rd free

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3 for 2

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Buy 2 Save £4

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Buy any 2 for £10

Add 2 of this product to your basket for £10.

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Add 3 of this product to your basket and save £4.

Buy 3 Save £10

Add 3 of this product to your basket and save £10.

Free Delivery Valentine's Day Offer

As a Valentine's Special Offer, we are offering this product duo with delivery included. Order by end of Sunday 11th Feb for guaranteed delivery in time for Valentine's Day.

💜 Verbena 'Buenos Aires' - 9cm Pot Offer 💜

Limited Time Offer! Add 3 Plants for £15, usually £23.97. Just £5 per plant! Add 5 Plants for £20, usually £39.95. Just £4 per plant! Add 10 Plants for £35, usually £79.90. Just £3.50 per plant! Discounts automatically apply at checkout.

💜 Buddleja davidii 'Adonis Blue' - 9cm Pot Offer 💜

Limited Time Offer! Add 3 Plants for £15, usually £29.97. Just £5 per plant! Add 5 Plants for £20, usually £49.95. Just £4 per plant! Discounts automatically apply at checkout.

🌸 Limited Time Offer! 🌸

Limited Time Offer! Add 3 Plants for £15, usually £26.97. Just £5 per plant! Add 5 Plants for £20, usually £44.95. Just £4 per plant! Add 10 Plants for £35, usually £89.90. Just £3.50 per plant! Discounts automatically apply at checkout.

Please Note

These seeds should ideally be sown this season. All our packets have ‘Sow by Date’ guidance on them, this is the date the seeds should be sown in order to achieve the highest rate of germination. You will still see the same high-quality plants if sowing in seasons after the ‘Sow by Date’ but may see a reduction in germination rate

🌿 Pre-Order Product 🌿

Please note this product is currently on Pre-order. Please read details below for despatch dates.

Buy 2 for £14.98

Mix 'n' Match Buy any 2 vegetable packs for £14.98. Discount automatically applied at checkout.

🍃 Half Price with Frostgard Roll Purchase 🍃

Get these hoops half price when you purchase Grow it Frostgard Roll 8m x 1.5m or Grow it Frostgard Roll 8m x 1.5m - Duo Pack.

Mix 'n' Match 2 for £12

Buy any 2 9cm Herbs for £12. Discount automatically applied at checkout.

Mix 'n' Match 2 for £10

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25% off Your Next Order

Get 25% off your next order when you buy selected Growhouses *You must be signed up to our gardening club emails to receive your 25% off voucher

Organic Extra Fertiliser and Soil Improver - 44L

Marshalls Garden

£24.99

Catalogue Code: 10904605

Sale price

In stock

Regular price £24.99
Feed your plants with our best-selling Organic Extra Fertiliser, loved for its long-lasting effects and versatility. This highly concentrated, organic fertiliser nourishes your garden over time—only a couple of handfuls per square metre needed! Perfect for all fruits, vegetables, flowers, and plants.

Pack Contents: 1 x 44ltr Sack

Description

Loved by our gardeners for its versatility and effectiveness, Organic Extra Fertiliser is your go-to solution for boosting the health of your entire garden. Whether you're tending to fruits, vegetables, flowers, or plants, this powerful, all-natural fertiliser works wonders across your garden beds.

Our customers rave about its ability to improve soil quality while delivering long-lasting nutrition that won’t scorch or damage your plants. Our customers rave about its ability to improve soil quality while delivering long-lasting nutrition that won’t scorch or damage your plants, with plenty of 5-star reviews to back it up.

Sufficient to cover a 23ft by 7ft (7m x 2m) plot up to 30 times. That's less than £1 per use, providing year-long nourishment for all your crops!

  • Acts as a fertiliser and soil improver: Packed with organic nutrients, it steadily releases them over time, enriching your garden with essential nourishment.
  • 100% organic and peat-free: Made from farmyard manure with added seaweed extract, it provides a rich, natural boost without harmful chemicals.
  • Safe and gentle: Unlike fresh manure or harsh chemical fertilisers, Organic Extra won’t scorch your plants.
  • Multi-purpose: Use it across your garden for everything from vegetables and fruits to flowers and houseplants.
  • Super-concentrated: Only a few handfuls per square metre are needed, making it cost-effective.
  • Seasonal benefits: Ideal for autumn to replenish nutrients used over the summer and again in spring to replace nutrients lost over winter.

Organic Extra also acts as a natural slug deterrent, giving you peace of mind!

How to Use:

  • For general garden use: Sprinkle a couple of handfuls per square metre of soil around your plants and gently rake in. Water well to activate the nutrients.
  • For potted plants: Use a small handful per pot, mixed into the compost, and water thoroughly.
  • As a liquid feed: Soak Organic Extra in water to create a liquid feed. Simply mix a few handfuls with water, leave for a couple of days, then strain and use the liquid to water your plants.
  • Seasonal application: Apply in autumn to boost nutrients ahead of winter, and again in spring to promote healthy plant growth after the cold season.

Specifications:

  • NPK: 5:3:3
  • Weighs approx. 22kg

For orders of 3 bags or more additional delivery charges will apply.

Also available in either half pallet or full pallet bulk buy options.

Delivery

We know how important your garden is to you. We've listened to our customers and introduced a new improved speedy delivery service, meaning Express delivery comes as standard.

*Orders to Northern Ireland have an automatic additional £3.00 delivery surcharge applied at checkout. 

Order TypeDelivery ChargeDelivery Charge
Seed only order£2.99If you purchase any other items you'll be charged the standard delivery rate of £4.95
Plants, bulbs & gardening accessories£4.95If we need to split your order into separate deliveries we'll only charge one delivery fee
Extra large or long plants & heavy items£9.99These are clearly displayed at check-out
Compost (and any other large or heavy items)£4.95

These items are subject to a delivery multiplier where orders containing 3 or 4 items will be subject to an additional £4.95 for every further 2 items added. This is automatically applied at check-out:

  • 1 - 2 bags £4.95
  • 3 - 4 bags £9.90
  • 5 - 6 bags £14.85
  • 7 - 8 bags £19.80
  • 9 - 10 bags £24.75

If you'd like more than 10 bags of compost please call our Customer Service team who can arrange for a bespoke competitive quote on 01480 774555 (standard network charges apply)

For more detail on specific delivery queries and compost delivery please click here
 

Delivery to outside of Great Britain

We regret we are unable to deliver any items outside of some Great Britain delivery addresses. This includes Europe, Channel Islands, Republic of Ireland, USA and Rest of World. We will update our website if this changes. 

We now deliver to Northern Ireland, additional delivery surcharges automatically apply at checkout. 

For more information about our deliveries please click here.

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