Best Grass Seed 20kg Deals Online in the UK (25 Deals Found)

Last Updated - 09/01/2026 Sort By:

Best Choice
Boston Seeds

New
Boston Seeds Fast Growing Grass Seed - Hard Wearing Grass Seeds in Various Weights. Rapid Germination Seeds for Lawns &
IDEAL FOR LANDSCAPING - Available in an assortment of weights for gardens of all sizes, so you can find the right amount

£71.99
A1Lawn

New
A1 Lawn Multi Purpose Grass Seed, 20kg (560m2) – Fast Growing UK Quality, Pet & Child Friendly – Patch Repair, Over Seed
PREMIUM MULTI-PURPOSE GRASS SEED – AM Pro 26 is a high-quality grass seed blend for a lush, green grass lawn. Ideal for

£99.99
New
Premium Hard-Wearing Grass Seed Patch Repair Lawn Recovery 100g-20kg | 3-570 sqm
80% Perennial Rye Grass & 20% Strong Creeping Red Fescue blend. Our premium seed blend is tailored for use in the UK and

£64.99
A1Lawn

New
A1 Lawn - Hard Wearing Grass Seed, 20kg (560m2) - For Patch Repair, Overseeding, New Lawns & Thickening - Hardy Fast Gro
HARDWEARING AND HIGH QUALITY - The hard-wearing and durable qualities make this AM Pro 25 lawn seed a great option for t

£99.99
New
20kg Hard Wearing Back Lawn Tough Grass Seed Play Areas Heavy Traffic
These mixtures will often be a blend of perennial ryegrass, tall fescue, red fescues and browntop. The lawn will usually

£65.95
GroundMaster

New
GroundMaster Premium Lawn Grass Seed – 20KG Hard Wearing & Fast Germination Grass Seeds for Family Lawns and Gardens, Co
HARD WEARING - These grass seeds will give you a premium, well-groomed lawn with a thick, dense, fine blade grass and lu

£104.99
Best Value
The Grass People

New
The Grass People Simply Seed 20KG Grass Seed Lawn Seed Multi-purpose Grass Seed, Luxury Lawn, Premium Quality Lawn, Hard
ECONOMICAL landscapers solution for strong and durable grass coverage, fast growing and reliable.

£93.50
New
Grass Seed Hard Wearing Fast Growing Premium Quality Seed Front & Back Garden
Ivisons Quality Defra Approved Super Hard Wearing Grass Seed, Suitable For High Traffic Areas! PLEASE NOTE: 1KG & 2KG SO

£89.95
GardenersDream

New
GardenersDream 20KG Premium Hard Wearing Grass Seed - Fast Growing Grass Seeds for New Lawns & Patch Repair - Covers up
TOUGH & DURABLE LAWN: Our premium grass seed mix creates a thick, hardy lawn that withstands wear and tear throughout th

£104.99
New
20kg Premium Economy Hard Wearing Tough Lawn Grass Seed
These mixtures will often be a blend of perennial ryegrass, tall fescue, red fescues and browntop. The lawn will usually

£65.95
Avern

New
Avern Turbo Cold, Autumn & Winter Grass Seed 1.3KG, Lawn Seed, Hard Wearing Grass, Dog Friendly, Germinates in Colder We
A scientifically enhanced, hardwearing, dog pee resistant grass seed that creates durable, lush green lawns for the whol

£13.99 £14.97
Free Shipping
Lawns Direct

New
Lawns Direct™ ProGrass™ 20kg Premium Quality Professional Hardwearing Landscaping Grass Seed for Healthy, Resilient Swar
Fast-acting: When prepared correctly, you can achieve speedy growth in both domestic and commercial grass areas.

£87.55 £103.00
New
GroundMaster HardWearing Tough Garden Premium Back Lawn Grass Seed Various Sizes
For quick establishing, lawns, pitches and landscaping. Artificial Topiary. It is also ideal for over-seeding thin exist

£124.99
GroundMaster

New
GroundMaster Premium Lawn Grass Seed – 5KG Hard Wearing & Fast Germination Grass Seeds for Family Lawns and Gardens, Cov
HARD WEARING - These grass seeds will give you a premium, well-groomed lawn with a thick, dense, fine blade grass and lu

£32.49
Free Shipping
New
GRASS SEED HARD WEARING LAWN SEEDS PREMIUM TOUGH FAST GROWING DEFRA CERTIFIED
Premium quality hard wearing grass seeds Premium Hard Wearing Fast Growing Grass Seeds Brand: Kingdom Hard-Wearing Grass

£89.95
Boston Seeds

New
Boston Seeds Quality Grass Seed, Hardwearing Grass Seed for Family Lawns & Grass (1 x 10kg)
IDEAL FOR ALL GARDENS - Available in an assortment of weights for gardens of all sizes, so you can find the right amount

£50.99
New
Hardwearing Grass Seed Professional Landscaping Premium Lawn Seed 250g - 20kg
70 % Perennial Ryegrass Lolium Perenne. 30 % Creeping Red Fescue Festuca Rubra. Hardwearing Professional Landscaping Gra

£103.00
New
Super Fast Growing Grass Seed | Quick Rapid Lawn Repair & Growth | Pet-Friendly
Please see postcodes below before purchasing as we do not post to all of the UK. Free Next Day Delivery For 5kg Bags And

£89.95
New
Sprogs & Dogs Grass Seed - Multiple pack sizes lawn seed, fast growing and tough
Sprogs & Dogs by Lawn UK - Super Hardwearing, Fast Growing Easy to care for Grass Seed. One of our most popular lawn see

£124.99
New
GARDENERS DREAM HARD-WEARING PREMIUM TOUGH BACK GARDEN LAWN GRASS SEED
For quick establishing, lawns, pitches and landscaping. It is also ideal for over-seeding thin existing lawns or repairi

£124.99
New
Fast Growing Rapid Lawn Grass Seed Quick Fix Repair Pets dogs Kids 1-500kg
To Sow A New Lawn; Dig the soil over to a depth of 20-25cm then remove weeds by hand or use a weed killer. Add top soil

£74.99
New
PREMIUM SHADY AREA LAWN SEED GRASS SEED SHADED UNDER TREES IVISONS SEEDS
Please see post codes below before purchasing as we do not post to all of the uk FREE NEXT DAY DELIVERY FOR 5KG BAGS AND

£92.95
New
ColdPro™ Fast Growing Winter Grass Seeds - Lawn Seed for Cold Weather
ColdPro™ is the best grass seed for low temperatures. It germinates well at low temperatures and is very hard wearing wi

£127.99
New
Any Time Grass / Lawn Seed - Germinates at low temp, Hardwearing. 1kg-20kg
Scottish Highlands/Islands : IV, HS, KA27-28, KW, PA20-49, PA60-78, PH17-26, PH30-44, PH49-50, ZE.

£12.75
New
20kg Super Hard Wearing Grass Seed Front & Back Lawn Premium Durable Garden
Ivisons Quality Defra Approved Super Hard Wearing Grass Seed, Suitable For High Traffic Areas! PLEASE NOTE: 1KG & 2KG SO

£89.95

25 Grass Seed 20kg deals are available from: Amazon, eBay stores, starting from £12.75.
The biggest discount we found is 10%% on Boston Seeds Fast Growing Grass Seed - Hard Wearing Grass Seeds in Various Weights. Rapid Germination Seeds for Lawns & Landscapes (Eco - 20Kilogram) at Amazon.
The lowest price we found is £12.75 while the highest is £127.99.
Prices for the best Grass Seed 20kg deals average at £84.15.
Last updated on January 9, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Grass Seed 20kg.