Members' Experiments

Each year we organise several citizen science experiments that our members can participate in. Over the years, these experiments have played an important part in informing the way we growing organically today.

Experiments vary in complexity and time required, from more involved experiments trying out a new crop to a simple online survey. The necessary instructions, seeds (where appropriate), and record sheets are usually sent out in the spring and the results are returned to us by Christmas. We collate them and publish the findings in our magazine, The Organic Way – they may also be presented at conferences and used in the development of more detailed research studies.

Common themes of experiments include novel crops, comparisons of varieties, gardening techniques, and wildlife surveys. Most of this work is supported by our members but some experiments are run in collaboration with universities or commercial companies.

Take part in our 2022 Members Experiments

We're excited to offer members four new experiments this year. We'll share updates and details about our member's experiments online and in our Organic Matters newsletter.

  1. Testing a novel biostimulant – help us assess if a new biostimulant could revolutionise organic pest control. - already started
  2. Does comfrey liquid live up to its claims? - already started
  3. Antimicrobial bacteria in partnership with York University - still places left
  4. Observing and recording exploding aphids! - still places left

You can also View the Coventry University report on 60 years of Garden Organic's citizen science activity or view the results from the previous year's experiments in the archive below.

Experiment Archive


  1. Testing a novel biostimulant - Help us assess if a new biostimulant could revolutionise organic pest control.


  1. Getting a head start with green manures
  2. Alternatives to plastic mulches
  3. Can mesh netting reduce potato blight
  4. A survey of pests and diseases in vegetable crops in UK gardens and allotments


  1. Improving germination in round peas
  2. Boosting the population of natural helpers
  3. Testing the health of our soil
  4. Home grown lentils


  1. A survey of comfrey use
  2. Growing edible lupins
  3. What is the best way of trapping slugs?


  1. Survey of novel and non-food uses of plants
  2. Blooms for Bees bedding plants
  3. Testing tomatillos as a novel crop


  1. Growing field beans for human consumption
  2. Can Persian clover be used as a no-dig green manure?
  3. A survey of vegetable growing and seed saving


  1. Compostable packaging - how well does it live up to its claim?
  2. Can buckwheat be used to control couch grass?
  3. What is the best time to sow mustard seeds?


  1. Nitrogen fixation by different legumes
  2. Amaranth as a novel crop
  3. Cut and come again leeks
  4. A survey of bumblebees (in association with Coventry University)


  1. Growing wheat at home
  2. Shark’s fin melon as a novel crop
  3. Blight resistant tomatoes


  1. Blight resistant tomato varieties
  2. Mango ginger as a novel crop
  3. Feeding plants in pots


  1. Melcourt Growbark as an ingredient in seed growing media
  2. Tree spinach as a novel crop
  3. A survey of butterflies in the garden
  4. Slug Lady cardboard barriers
  5. An invertebrate survey of compost (in association with Plymouth University)


  1. Quinoa as a novel crop
  2. Comparing old and new varieties of peas
  3. A survey of garden slugs and snails

2008 (50th Anniversary year)

  1. Evaluating Russian comfrey
  2. Comparison of old and new varieties of tomato and lettuce
  3. The potential of winter salads
  4. A survey of garden bees
  5. The ecological footprint of gardening


  1. Chickpeas as a novel crop
  2. Edible flowers
  3. The ecological footprinting of gardens and allotments
  4. A survey of garden spiders
  5. A survey of garden frogs and birds (in association with Froglife, RSPB and BTO)


  1. Carrot flavour test
  2. Summer cover crops
  3. Seaweed for controlling rose blackspot
  4. Using plants with seed heads to encourage birds in the garden


  1. Organic box scheme study - prices and availability
  2. Comparison of onions from sets or seeds
  3. Soya as a novel crop
  4. Evaluating flowers attractive to predators and parasites of pests