Yes, you have multiple ways to use the wood fire ash in your garden. If you sprinkle a small amount of ash in your vegetable bed, then it’s equal to adding potassium and lime. But, you should avoid using ashes on vegetables that need acidic soil for its growth like peppers, potatoes, carrots, celery, tomatoes, garlic, and blueberries.
Ashes are highly alkaline substances, so it should be used with caution. Adding a sprinkle of ash to your compost pile will benefit a lot of different plants such as- swiss chard, asparagus, beets, peas, kale, and broccoli.