ChatterBank2 mins ago
clematis problems
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For more on marking an answer as the "Best Answer", please visit our FAQ.It's slugs and snails that eat the outer layer of the stems on clematis while snails and earwigs eat the flowers. If you don't want to use pellets there's organic garlic granules on the market which won't harm your plants or the wildlife. Alternatively you can put a good layer of gritty sand around the plants, or baked then crushed eggshells. If your plants are growing up walls or fences though you will never stop the molluscs unless you pick them off by hand (at night is best because that's when they are most active) and drown them in salt water.
The holes in the buds are most likely little snails, or earwigs which are more difficult to deal with - you can try putting half a grapefruit down on the ground (after you've eaten the flesh!) like a little tent, or put a plantpot upside down on a stick and filled with straw very close to the plant. Either way the earwigs should hide during the day so you can just remove the straw and/or grapefruit and dispose of it with the earwigs.
I hope this helps, and that your clematis are ok.