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Test your soil's pH at home with the Smart Garden pH Soil Tests, 15-Pack, a simple and reliable way to check whether your soil is acidic, neutral, or alkaline before you plant. With 15 individual tests in a single pack, you can monitor different beds and borders across the season, or retest the same spot over several weeks to track changes after adding amendments.
Ideal for gardeners wanting to grow acid-loving plants like blueberries, rhododendrons, and camellias, or to diagnose why vegetables, fruit, or flowers are struggling in a particular bed. Knowing your soil pH helps you choose the right plants for your conditions and decide whether to add lime to raise pH or ericaceous compost to lower it.
Packaged in a compact colour box with clear, easy-to-follow instructions included, these 15 pH Soil Tests are a low-cost, no-fuss entry into soil testing. The compact 15.5 x 9.7 x 3.2 cm box fits in a potting shed drawer or kitchen cupboard, ready to grab whenever you need to check a new bed or troubleshoot a poorly performing crop.
Why should I test my soil's pH?
Soil pH affects which nutrients are available to plant roots. Acidic soils (low pH) suit ericaceous plants like blueberries, camellias, and rhododendrons, while most vegetables and fruit prefer a near-neutral pH around 6.0 to 7.0. A quick pH test takes the guesswork out of plant choice and tells you whether to add lime, sulphur, or ericaceous compost to bring the soil into the right range.
How many tests do I need?
Allow at least 2–3 tests per distinct bed or border, ideally taking samples from different spots to account for variation. The 15-pack is enough to test up to 5 beds across the season, or to monitor changes in the same bed over several months as you add amendments.
When is the best time to test soil pH?
Autumn and early spring are ideal, when the soil is moist but not waterlogged and before the main growing season begins. Avoid testing within 4–6 weeks of applying lime, fertiliser, or manure, as these will temporarily skew the reading.
Do I need any special equipment to do the test?
No special equipment is needed. You'll need a small clean container, water (distilled gives the most accurate reading), and a spoon for stirring. The kit includes the test strips and a colour comparison chart on the box.
How accurate are these test strips?
Colorimetric pH test strips like these typically read to within 0.5 pH units, which is more than accurate enough for routine garden use. For laboratory-grade accuracy (to 0.1 pH units), a digital pH meter is a better choice — but for choosing plants or deciding whether to add lime, the Smart Garden strip tests are a reliable, low-cost option.
Options for delivery rates and times are shown at checkout after you enter your postcode.
Standard: 3–5 working days | Express: 1–2 working days
| Region | Standard (up to 2 kg) | Express (up to 30 kg) |
|---|---|---|
| Mainland UK*Free over £99 (exclusions apply) | £3.95 | From £5.95 – £7.95 |
| Scottish Highlands & Scottish IslesAB, FK, HS, IV, KA, KW, PA, PH, ZE | £4.95 | From £9.95 - £29.95 |
| Isle of Man, Isles of Scilly, Isle of Wight, Jersey & GuernseyIM, TR, PO, JE, GY | £4.95 | From £9.95 - £29.95 |
| Northern Ireland | N/A | N/A |
Estimated delivery window: 3–10 working days
| Region | Service / Rate |
|---|---|
| Mainland UK | Selected at checkout |
| Scottish Highlands & Scottish IslesAB, FK, HS, IV, KA, KW, PA, PH, ZE | Selected at checkout |
| Isle of Man, Isles of Scilly, Isle of Wight, Jersey & Guernsey | N/A |
| Northern Ireland | N/A |
For more information, please see our full Delivery & Collection Policy.
Some products are available for local delivery only and are highlighted on the product page. We deliver locally from Trowell Garden Centre using our own transport.
Click for local delivery postcodes and rates.
You may return most new, unopened items within 30 days of delivery for a full refund. Refunds are processed within 48 hours of receipt; how quickly funds appear depends on your payment provider.
Read our full Return & Refund Policy.
*Free UK delivery over £99 excludes furniture, local van deliveries and postage to remote areas.
Test your soil's pH at home with the Smart Garden pH Soil Tests, 15-Pack, a simple and reliable way to check whether your soil is acidic, neutral, or alkaline before you plant. With 15 individual tests in a single pack, you can monitor different beds and borders across the season, or retest the same spot over several weeks to track changes after adding amendments.
Ideal for gardeners wanting to grow acid-loving plants like blueberries, rhododendrons, and camellias, or to diagnose why vegetables, fruit, or flowers are struggling in a particular bed. Knowing your soil pH helps you choose the right plants for your conditions and decide whether to add lime to raise pH or ericaceous compost to lower it.
Packaged in a compact colour box with clear, easy-to-follow instructions included, these 15 pH Soil Tests are a low-cost, no-fuss entry into soil testing. The compact 15.5 x 9.7 x 3.2 cm box fits in a potting shed drawer or kitchen cupboard, ready to grab whenever you need to check a new bed or troubleshoot a poorly performing crop.
Why should I test my soil's pH?
Soil pH affects which nutrients are available to plant roots. Acidic soils (low pH) suit ericaceous plants like blueberries, camellias, and rhododendrons, while most vegetables and fruit prefer a near-neutral pH around 6.0 to 7.0. A quick pH test takes the guesswork out of plant choice and tells you whether to add lime, sulphur, or ericaceous compost to bring the soil into the right range.
How many tests do I need?
Allow at least 2–3 tests per distinct bed or border, ideally taking samples from different spots to account for variation. The 15-pack is enough to test up to 5 beds across the season, or to monitor changes in the same bed over several months as you add amendments.
When is the best time to test soil pH?
Autumn and early spring are ideal, when the soil is moist but not waterlogged and before the main growing season begins. Avoid testing within 4–6 weeks of applying lime, fertiliser, or manure, as these will temporarily skew the reading.
Do I need any special equipment to do the test?
No special equipment is needed. You'll need a small clean container, water (distilled gives the most accurate reading), and a spoon for stirring. The kit includes the test strips and a colour comparison chart on the box.
How accurate are these test strips?
Colorimetric pH test strips like these typically read to within 0.5 pH units, which is more than accurate enough for routine garden use. For laboratory-grade accuracy (to 0.1 pH units), a digital pH meter is a better choice — but for choosing plants or deciding whether to add lime, the Smart Garden strip tests are a reliable, low-cost option.
Options for delivery rates and times are shown at checkout after you enter your postcode.
Standard: 3–5 working days | Express: 1–2 working days
| Region | Standard (up to 2 kg) | Express (up to 30 kg) |
|---|---|---|
| Mainland UK*Free over £99 (exclusions apply) | £3.95 | From £5.95 – £7.95 |
| Scottish Highlands & Scottish IslesAB, FK, HS, IV, KA, KW, PA, PH, ZE | £4.95 | From £9.95 - £29.95 |
| Isle of Man, Isles of Scilly, Isle of Wight, Jersey & GuernseyIM, TR, PO, JE, GY | £4.95 | From £9.95 - £29.95 |
| Northern Ireland | N/A | N/A |
Estimated delivery window: 3–10 working days
| Region | Service / Rate |
|---|---|
| Mainland UK | Selected at checkout |
| Scottish Highlands & Scottish IslesAB, FK, HS, IV, KA, KW, PA, PH, ZE | Selected at checkout |
| Isle of Man, Isles of Scilly, Isle of Wight, Jersey & Guernsey | N/A |
| Northern Ireland | N/A |
For more information, please see our full Delivery & Collection Policy.
Some products are available for local delivery only and are highlighted on the product page. We deliver locally from Trowell Garden Centre using our own transport.
Click for local delivery postcodes and rates.
You may return most new, unopened items within 30 days of delivery for a full refund. Refunds are processed within 48 hours of receipt; how quickly funds appear depends on your payment provider.
Read our full Return & Refund Policy.
*Free UK delivery over £99 excludes furniture, local van deliveries and postage to remote areas.
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