Can you acidify tapwater?
I've got some blueberries in ericacaceous compost in tubs. Unfortunately because we are in rented accommodation I can't put a waterbutt in... so I have been watering with tap water but I know this is not ideal. This might be crazy but could you, for example, pop a capful of vinegar in to acidify the water? Or am I better off continuing as I am and replacing the compost next year? 🤔
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You'll need to get a large container for collecting rainwater. A plastic dustbin or similar would do, or just buckets and basins .
Making water more acidic won't remove the hardness that's caused by calcium and the like.
Reverse Osmosis water would do the trick, but it's very wasteful - 1 gallon of RO would use between 3-5 gallons of water.
I feed mine with Miracle Grow Azalea feed once a month
Wisdom is not putting it in a fruit salad.
You'll just have to swap to strawberries @Julia1983, or move north....
You're right - a bigger area will work really well, and no one will be going anywhere when it's raining so there should be plenty of brollies going to waste
Good luck anyway @Julia1983