![Rana temporaria Common frog](https://images.immediate.co.uk/production/volatile/sites/10/2018/02/729d3557-1832-4aba-a890-f61d7c8fc28a-1eb5993.jpg?quality=90&resize=460,307)
Make a hibernaculum for frogs
Create a cosy hibernaculum for hibernating frogs using recycled items from around the garden.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
At its best | yes | |||||||||||
To do | yes |
While male frogs head to the depths of the pond to spend winter, females and juveniles seek out damp areas. Create the perfect winter digs for them in autumn, using an old growing bag, grass clippings and autumn leaves.
The bag retains moisture to keep frogs' skins moist, while leaves and clippings insulate them from frost.
Watch our Quick Tips video guide to attracting frogs to your pond.
Here's how to make a frog hibernaculum.
You Will Need
- Old growing bag
- Grass clippings or soft plant prunings
- Autumn leaves
- Tree or shrub prunings
- Garden spade
Step 1
![Laying the growing bag in the trench Laying the growing bag in the trench](https://images.immediate.co.uk/production/volatile/sites/10/2018/02/72b92190-786d-4312-b00e-891ead210878-53c65cc.jpg?quality=90&fit=700,466)
Choose a sheltered spot that won't be disturbed. Dig a shallow trench the same size as the old growing bag. Lay the bag in the trench and gently firm the compost.
More like this
Step 2
![Adding grass clippings to the top of the bag Adding grass clippings to the top of the bag](https://images.immediate.co.uk/production/volatile/sites/10/2018/02/73cbdad6-07c8-401b-815a-867fe53d5915-53c65cc.jpg?quality=90&fit=700,466)
Cover the bag with grass clippings or plant prunings, ensuring no unsightly edges of the bag are on view. Frogs love to squeeze into tight spaces, so pack the clippings down.
Step 3
![Adding a cover of leaves Adding a cover of leaves](https://images.immediate.co.uk/production/volatile/sites/10/2018/02/18f10210-41ef-4f49-87ac-fb7380d32c9a-36ea9e9.jpg?quality=90&fit=700,466)
Spread a thick layer of leaves over the top. If you've chosen a windy spot, add some twigs to hold the leaves in place. Leave the hibernaculum undisturbed until April.
Kate Bradbury says
Male frogs may also hibernate in the bottom of your pond, hiding in the mud. They can breathe through their skin, but if the pond freezes over noxious gasses, caused by decaying plant material, can become trapped in the water and poison the frogs. Remove decaying plant material from your pond in autumn, and float a tennis ball on the surface in winter, to stop it completely freezing over.![Kate Bradbury Kate Bradbury](https://images.immediate.co.uk/production/volatile/sites/10/2018/02/ca7a140b-d4df-436b-b219-3f040188f32c-640bf42.png?quality=90&resize=767,697)
![GW_Brandsite_june24 Subscribe to BBC Gardeners' World Magazine](https://images.immediate.co.uk/production/volatile/sites/10/2024/05/GWBrandsitejune24-8f57acf.jpg?quality=90&resize=600,400)
Subscription offer
Get your first 6 issues of BBC Gardeners' World Magazine for just £9.99 with this introductory offer.