Is it OK to collect Frogspawn?
If you're collecting frogspawn, take only a small amount (20 is plenty) preferably from a garden pond, with permission from the owner if it's not your own. ... Tadpoles are vegetarian at first and will naturally eat algae and other pond plants but you can feed them boiled lettuce, spinach and other greens.
When can you collect Frogspawn?
Frogspawn appears in ponds from January onwards, depending on the weather and the region (the South West usually has the first sightings). By March, you should be able to spot frogspawn in ponds across the UK. Common frogspawn appears in clumps from January onwards.