My garden consists of two narrow borders and lots and lots of various shapes and sizes of tubs.Some of the bigger ones have shrubs in along with many clematis.The rest are mostly perennial plants.I renew the top 2/3 inches of soil every two years, but really need advise on what the best plant food/fertiliser to use.please
I have been advised here to use tomato feed on patio clematis.
I'd add a good layer of well rotted manure , or garden compost, and let the worms do the rest for you. I'd second Artjak's suggestion re tomato food and clematis.
For beds fish blood and bone, as Tracey says, well mixed into the soil. In containers I too would go for top dressing with dried manure and a weekly dilute feed of seaweed spray and a high potash feed like phostrogen
I top dress the beds with home made compost and well-rotted farm yard manure, and a sprinkling of FB&B in the spring and again in early summer.
Plants that produce a lot of blooms, like clematis and roses also get a watering of soluble potash in early spring and again in the summer.
When planting I use bonemeal and for hungry plants some chicken poo pellets. Tomarite is good for green growth. There is a special feed called Nitrozyme that Cannabis growers use (nothing wrong from learn from the professionals) that gives plants a boost during growing seasons.